Patent Grant
10719749
The present invention relates to quality management systems and methodologies and to indicators useful in such systems and methodologies.
The following U.S. Patents relate generally to the subject matter of the present application: U.S. Pat. Nos. 6,758,397; 6,009,400, 6,685,094 and RE 39,226.
The present invention seeks to provide improved quality management systems and methodologies as well as indicators useful in such systems and methodologies.
There is thus provided in accordance with a preferred embodiment of the present invention a quality management system for products including a multiplicity of barcoded quality indicators each operative to provide a machine-readable indication of exceedance of at least one threshold by at least one product quality affecting parameter, a barcode indicator reader operative to read the barcoded quality indicators and to provide output indications, the barcoded quality indicators being readable by the barcode indicator reader at all times after first becoming readable, including times prior to, during and immediately following exceedance of the at least one threshold by the at least one product quality affecting parameter, and a product type responsive indication interpreter operative to receive the output indications and to provide human sensible, product quality status outputs.
Preferably, the barcoded quality indicators include linear barcodes.
Preferably, each of the multiplicity of barcoded quality indicators provides a first machine-readable indication prior to the exceedance of the at least one threshold and a second machine-readable indication, different from the first machine-readable indication, following the exceedance of the at least one threshold. Additionally, the first and the second machine-readable indications have identical checksum digits and differ by two digits thereof, and the first and the second machine-readable indications have checksum integrity under an EAN/UPC checksum system. Alternatively, the first and the second machine-readable indications have different checksum digits and differ by at least one digit thereof and the first and the second machine-readable indications have checksum integrity under an EAN/UPC checksum system. Additionally or alternatively, during exceedance of the threshold the barcoded quality indicators simultaneously provide two machine-readable indications, corresponding to the first machine-readable indication and to the second machine-readable indication.
Preferably, the product type responsive indication interpreter is programmable to prefer an exceedance indication over a subsequently read non-exceedance indication for the same threshold.
Preferably, one of the at least one product quality affecting parameters is time.
Preferably, the quality indicators are operative to provide indications of exceedance of several different thresholds and an indication of exceedance may be provided for one threshold at a time when an indication of exceedance is not provided for another threshold.
Preferably, the quality indicators are operative to provide the machine-readable indication only following actuation thereof. Alternatively, the quality indicators are operative to provide the machine-readable indication only upon activation thereof which occurs automatically a predetermined time following manufacture or actuation thereof. Additionally, prior to the actuation the quality indicators are in a first visible state and following the actuation the quality indicators may be in a second visible state, different from the first visible state, and the indicators are machine-readable at least in the second visible state. Additionally, the indicators are not machine-readable when the indicators are in the first visible state. Alternatively, the indicators are machine-readable when the indicators are in the first visible state.
Preferably, the product type responsive indication interpreter is further operative to receive an input in addition to the output indications, the input being necessary to provide quality, product quality status outputs. Additionally, the indication interpreter forms part of or is otherwise connected to a computer including a product status table useful to provide product quality status outputs based on the output indications and the input. Additionally, the input includes product-related parameters.
There is also provided in accordance with another preferred embodiment of the present invention a barcoded quality indicator operative to provide a machine-readable indication of exceedance of at least one threshold by at least one product quality affecting parameter, the barcoded quality indicator being readable by a barcode indicator reader at all times after first becoming readable, including times prior to, during and immediately following exceedance of the at least one threshold by the at least one product quality affecting parameter.
Preferably, the barcoded quality indicator includes linear barcodes.
Preferably, the barcoded quality indicator provides a first machine-readable indication prior to the exceedance of the at least one threshold and a second machine-readable indication, different from the first machine-readable indication, following the exceedance of the at least one threshold. Additionally, the first and the second machine-readable indications have identical checksum digits and differ by two digits thereof, and the first and the second machine-readable indications have checksum integrity under an EAN/UPC checksum system. Alternatively, the first and the second machine-readable indications have different checksum digits and differ by at least one digit thereof and the first and the second machine-readable indications have checksum integrity under an EAN/UPC checksum system. Additionally or alternatively, during exceedance of the threshold the barcoded quality indicator simultaneously provides two machine-readable indications, corresponding to the first machine-readable indication and to the second machine-readable indication.
Preferably, one of the at least one product quality affecting parameters is time.
There is additionally provided in accordance with yet another preferred embodiment of the present invention a method for providing quality management for products including employing a multiplicity of barcoded quality indicators each operative to provide a machine-readable indication of exceedance of at least one threshold by at least one product quality affecting parameter, reading the barcoded quality indicators and providing output indications therefrom, the barcoded quality indicators being readable at all times after first becoming readable, including times prior to, during and immediately following exceedance of the at least one threshold by the at least one product quality affecting parameter, receiving the output indications, and interpreting the output indications to provide human sensible, product quality status outputs.
Preferably, the barcoded quality indicators include linear barcodes.
Preferably, each of the multiplicity of barcoded quality indicators provides a first machine-readable indication prior to the exceedance of the at least one threshold and a second machine-readable indication, different from the first machine-readable indication, following the exceedance of the at least one threshold. Additionally, the first and the second machine-readable indications have identical checksum digits and differ by two digits thereof, and the first and the second machine-readable indications have checksum integrity under an EAN/UPC checksum system. Alternatively, the first and the second machine-readable indications have different checksum digits and differ by at least one digit thereof and the first and the second machine-readable indications have checksum integrity under an EAN/UPC checksum system. Additionally or alternatively, during exceedance of the threshold the barcoded quality indicators simultaneously provide two machine-readable indications, corresponding to the first machine-readable indication and to the second machine-readable indication.
Preferably, one of the at least one product quality affecting parameters is time.
There is also provided in accordance with another preferred embodiment of the present invention a quality management system including a multiplicity of barcoded quality indicators each operative to provide a machine-readable indication of exceedance of at least one threshold by at least one product quality affecting parameter, each of the multiplicity of barcoded quality indicators including a barcode including black areas and transparent areas arranged along a barcode axis, at least one colorable element at least partially underlying the transparent areas, and at least one coloring agent adapted to color the at least one colorable element in response to exceedance of the at least one threshold, the at least one coloring agent passing along a pathway to the at least one colorable element in a time corresponding to the threshold, the pathway being configured such that the coloring agent progressively colors the colorable element in a direction generally perpendicular with respect to the barcode axis, thereby enabling the barcode to be readable while the colorable element is being progressively colored.
Preferably, the barcoded quality indicators include linear barcodes.
Preferably, each of the multiplicity of barcoded quality indicators provides a first machine-readable indication prior to the exceedance of the at least one threshold and a second machine-readable indication, different from the first machine-readable indication, following the exceedance of the at least one threshold. Additionally, during exceedance of the threshold the barcoded quality indicators simultaneously provide two machine-readable indications, corresponding to the first machine-readable indication and to the second machine-readable indication. Additionally, during exceedance of the threshold the coloring agent colors part of the colorable element such that the first machine-readable indication is provided by portions of the transparent areas lying above areas of the colorable element not colored by the coloring agent read together with areas of the barcode not lying above the colorable element, and the second machine-readable indication is provided by portions of the transparent areas lying above areas of the colorable element colored by the coloring agent read together with areas of the barcode not lying above the colorable element.
Additionally or alternatively, each of the multiplicity of quality indicators further includes a pull strip, the pull strip being suitable to prevent the passage of solvents and coloring agents therethrough before removal thereof, and removal of the pull strip actuates the indicators.
Preferably, each of the multiplicity of quality indicators further includes an activation delay layer dissolvable by a solvent, the activation delay layer being suitable to prevent the passage of coloring agents and solvents therethrough before dissolution thereof and the indicators are not activated until dissolution of the delay layer.
There is additionally provided in accordance with yet another preferred embodiment of the present invention a quality management system for products including a first multiplicity of individual package specific barcoded quality indicators each operative to provide a machine-readable indication of exceedance of at least one threshold by at least one product quality affecting parameter of an individual package, a second multiplicity of outer package specific barcoded quality indicators each operative to provide a machine-readable indication of exceedance of at least one threshold by at least one product quality affecting parameter of an outer package containing a plurality of the individual packages, a barcode indicator reader operative to read the indicators and to provide output indications, and a product type responsive indication interpreter operative to receive the output indications and to provide human sensible, product quality status outputs.
Preferably, the individual package specific barcoded quality indicators and the outer package specific barcoded quality indicators include linear barcodes.
Preferably, the outer package specific indicators indicate the exceedance of thresholds which correspond to the thresholds for which indication of exceedance is provided by the individual package specific indicators. Additionally, indication of exceedance may be provided by the outer package specific indicators associated with outer packages even when indication of exceedance is not provided by the individual package specific indicators attached to the individual packages contained therein. Additionally, indication of exceedance is not provided by the individual package specific indicators associated with individual packages if an indication of exceedance was not provided by the outer package specific indicators associated with the outer packages containing them. Alternatively, the thresholds for which indication of exceedance is provided by the outer package specific indicators correspond to an operative range different from the operative range to which the thresholds for which indication of exceedance is provided by the individual package specific indicators correspond.
The present invention will be understood and appreciated more fully from the following detailed description, taken in conjunction with the drawings in which:
Reference is now made to
Preferably, as elaborated hereinbelow with reference to
The product-related parameters and the other parameters, such as those relating to the quality indicator may be provided by the quality indicator itself or by an additional, separate indicator, such as a barcode-bearing indicator. As a further alternative, these parameters may be provided by sensors, a priori information otherwise available to the indication interpreter or by manual entry.
The indication interpreter preferably forms part of or is otherwise connected to a quality indication computer, which may be remote from the indicator reader and which preferably includes a decision table providing product quality status outputs based on the output indications provided by the indicator reader and the additional parameters.
It is appreciated that the additional parameters may be provided via another part of the same barcode or by another barcode associated with the same product. Alternatively, the additional parameters may be provided by other methods, such as using RFID technology.
The term “barcode” is used herein to refer to a machine readable optical code. In the examples' in the specification, linear, or one-dimensional bar codes are illustrated. It is appreciated that the invention may be applicable to two dimensional bar codes as well.
The quality indicator may incorporate a product code such as an EAN (European Article Number) or a UPC code (Universal Product Code). The examples shown in the description which follows all illustrate the use of an EAN code. Alternatively, the quality indicator may incorporate a 2 of 5 interleaved barcode or any other suitable barcode or machine-readable methodology.
Preferably, the quality indicator is operative to provide a machine-readable indication of exceedance of at least one threshold by at least one product quality affecting parameter. In a preferred embodiment the quality indicator provides a variable barcode having a fixed barcode portion and at least one selectably appearing barcode portion, both the fixed barcode portion and the combination of the fixed barcode portion and at least one selectably appearing barcode portion having barcode checksum integrity when read by a conventional barcode reader. Accordingly, it is appreciated that the selectably appearing barcode portion includes at least two digits which are different from those in the fixed barcode portion. The checksum is not necessarily changed. The checksum digit may be part of the fixed barcode portion or part of the selectably appearing barcode portion.
It is appreciated that in order to maintain checksum integrity under an EAN/UPC checksum system a barcode can be changed into another barcode by replacing at least two digits thereof, one of which may be the checksum digit. Each pair of digits can be replaced by another pair of digits where MOD10 of the weighted sum of both pairs is the same. For example, two adjacent digits in an EAN barcode, A1 in an even position and A2 in an odd position, may be replaced by two digits B1 and B2 such that MOD10(3XA1+A2)=MOD10(3XB1+B2). If, for example, the pair (A1, A2) is (4, 3) then (B1, B2) may be (8, 1), because MOD10 of the weighted sum in both cases is 5. In the embodiments illustrated in this application a digit is replaced by another digit only by printing additional bar widths. Accordingly, the possible replacements which can be made by adding bar widths are provided in Table I.
It is appreciated that the odd parity or the even parity of a digit is defined in accordance with the EAN (European Article Number) standard.
It is also appreciated that a digit can also be replaced with another digit by deleting bar widths.
According to a preferred embodiment of the present invention, the quality indicator provides a variable barcode having a visible pre-actuation state, a different visible post-actuation state and at least one visible state indicating exceedance of a corresponding one of at least one threshold. The various states are preferably all machine-readable by a conventional barcode reader. However one or more of the states may not be machine-readable by the conventional barcode reader and the fact that they cannot be read provides status information. For example, various situations in which a product is not to be sold or used may be indicated as non-readable states of the quality indicator.
Turning now to
In accordance with a preferred embodiment of the present invention, the quality indicators 100 may be assembled and/or actuated at the same location or at a location adjacent that at which the quality indicators 100 are associated with packages 101. A suitable indicator assembler is indicated by reference numeral 102. It is appreciated that indicator assembler 102 may be associated with an automatic actuator. It is further appreciated that the actuator may be automatic and may actuate the quality indicator after it has been produced by indicator assembler 102.
As seen in
Different types of indicators may be employed for different types of packages. For example, the quality indicator used on a carton containing a plurality of individual packages may be more or less accurate or have a greater or lesser dynamic range of indications than the quality indicator used on an individual package. The dynamic range of an indicator may be a greater or lesser range of temperatures and/or of times. Additionally or alternatively, the quality indicator on a carton may include an indicator capable of indicating exceedance of additional thresholds, not included in the quality indicators of individual packages contained therein, or fewer thresholds than the quality indicators of individual packages contained therein.
In the illustrated embodiment, the quality indicators include an EAN (European Article Number) barcode. The quality indicators 100 are preferably constructed to be actuatable by pulling a pull strip 106 forming part thereof, as indicated by reference numeral 107. In the illustrated embodiment, the quality indicators 100 preferably have a visible pre-actuation state I, a different visible post-actuation state II and a visible state III indicating exceedance of a predetermined temperature, for example 21 degrees Celsius, for at least a predetermined cumulative amount of time, for example one hour, as seen at reference numeral 125 in
The visible states are readable by a barcode reader. For example, in this illustrated embodiment, the pre-actuation state I is read as 7431348787736, the post-actuation state II is read as 7811348787736, the visible state III is read as 7811348782236, the visible state IV is read as 7817548787736, the visible state V is read as 7817562787736, the visible state VI is read as 7811348787750 and the visible state VII is read as 7817562927736. It is appreciated that additional states of the quality indicator not presented in the illustrated embodiment may be indicated by combinations of the states described above. For example, when the temperature of the quality indicator exceeds 40 degrees Celsius for at least one hour it also exceeds 25 degrees Celsius for at least one hour, which causes the quality indicator to assume the visible state III. However, the temperature in this case also exceeds 40 degrees for at least 30 minutes, which causes the quality indicator to assume the visible state VI. Therefore, this combined exceedance is indicated by a visible state which combines the visible state III and the visible state VI, and is read by a barcode reader as 7811348782250. It is further appreciated that the various visible states may occur in any suitable order and not necessarily in the order indicated by their numbering.
As further seen in
Alternatively, any of the visible states VIII, IX and X of the quality indicators 103 may be associated with barcodes which are the same as barcodes associated with states of the quality indicators 100. If the same barcode is associated with states of both types of indicators, then the identity of the quality indicator read by a barcode reader is provided to the indication interpreter by another method, for example by a manual entry to the database.
It is appreciated that the predetermined temperatures and the predetermined cumulative amounts of time may be selected as appropriate for a given application.
It is appreciated that as long as the temperature of the packages 101 does not exceed a predetermined temperature for at least a predetermined total amount of time, for example 21 degrees Celsius for one hour, and one week has not elapsed since manufacture or other actuation of the quality indicators, indicators 100 remain in the visible state II.
As seen in
As further seen in
Accordingly, upon inspection, as upon delivery, the quality indicators 103 attached to the cartons 104 which were exposed to a temperature of at least 30 degrees Celsius for a period of five and a half hours may be read by an inspector using a conventional barcode reader 113. The barcode in its visible state X preferably provides information to the quality indication computer 115 which enables the indication interpreter forming part thereof to provide an immediate indication of a quality status, such as a BAD indication 116. This BAD indication 116 indicates that at some time in the history of the quality indicator 103, the carton 104 to which it was attached was at least at the predetermined temperature for at least a predetermined total amount of time and that this event may have rendered one or more of the products in carton 104 unacceptable for sale.
Should the quality indicator 103 be in the visible state VIII, indicating that proper actuation of the quality indicator 103 did not occur, a NON-ACTUATED indication or a BAD indication 116 may be provided to an inspector or other interested party.
It is appreciated that until the cartons 104 are opened, which normally occurs only upon delivery, it is impractical to visually inspect the indicators 100 which are attached to the individual packages 101 inside the cartons 104. Depending on the circumstances, the temperature of the individual packages 101 within a carton 104 may or may not have exceeded 21 degrees Celsius for one hour and the indicators 100 which are attached to the packages 101 may or may not be in the further visible state III. This normally can only be seen upon opening the cartons 104 as shown in
It is a particular feature of the present invention that the time and temperature thresholds of the quality indicators 100 and 103, placed on the individual packages and the cartons containing them respectively, are preferably related in order to provide highly effective cold chain management. It is preferable that indicators 103 provide a time in temperature warning even if, upon inspection, the indicators 100 show that the individual packages 101 have not experienced unacceptable temperatures. In order that an unacceptable rate of false alarms not occur, the thresholds of the indicators 103 and 100 are preferably calibrated with respect to each other based, inter alia, on empirical data.
As further seen in
At any stage, such as upon delivery, the quality indicators 103 can be read with a conventional barcode reader 113, which preferably communicates with a remote quality indication computer 115 and provides an immediate indication of a quality status, such as an OK indication 118, to an inspector. It is appreciated that normally until delivery, it is impractical to visually inspect the indicators 100.
As stated above with relation to loading of truck A as indicated by reference numeral 110, it is preferable that the indicators 103 provide a time in temperature threshold exceedance warning even if, upon inspection, the indicators 100 show that the individual packages 101 have not experienced unacceptable temperatures for unacceptable durations. Accordingly upon subsequent reading of the indicators 100 on the packages 101 inside a carton 104 for which no such warning was provided, as indicated by reference numeral 123 in
As seen in
Accordingly, upon inspection, as upon delivery, upon reading the quality indicators 103 by an inspector using a conventional barcode reader 113, the barcode in its visible state X preferably provides information to the quality indication computer 115 which enables the indication interpreter forming part thereof to provide an immediate indication of a quality status, such as a BAD indication 120. This BAD indication 120 indicates that at some time in the history of the quality indicator 103, the carton 104 to which it was attached was at least at the predetermined temperature for at least a predetermined total amount of time and that this event may have rendered one or more of the products in carton 104 unacceptable for sale. It is appreciated that normally until cartons 104 are opened, typically following delivery, it is impractical to visually inspect indicators 100.
Depending on the circumstances, the temperatures of the individual packages 101 within the cartons 104 may or may not have exceeded 21 degrees Celsius for one hour and the quality indicators 100 which are attached to the packages 101 may or may not be in the further visible state III. This normally can only be seen upon opening cartons 104 as shown in
As further seen from
In contrast, as indicated by reference numeral 121, the quality indicators 103 of other cartons 104 which were not exposed to a temperature of at least 30 degrees Celsius for a period of five and a half hours remained in the visible state IX. The barcode in its visible state IX preferably provides information to the quality indication computer 115 which enables the indication interpreter forming part thereof to provide an immediate OK indication 122.
Should the quality indicator 103 be in the visible state VIII, indicating that proper actuation of the quality indicator 103 did not occur, a NON-ACTUATED indication or a BAD indication 120 may be provided to an inspector or other interested party.
Turning now specifically to
Barcode reader 113 preferably communicates with a remote quality indication computer 115 and provides an immediate OK indication 124 to an inspector, indicating that the temperature of some of packages 101 did not exceed a predetermined temperature for at least a predetermined total amount of time, for example 21 degrees Celsius for one hour.
This OK indication is in contrast to the BAD indication 120 provided by the quality indicators 103 associated with the cartons 104 containing these packages 101 as the result of refrigeration breakdown of truck B, as indicated by reference numeral 119 in
It is further stated above that in order that an unacceptable rate of false alarms not occur, the thresholds of indicators 103 and 100 are preferably calibrated with respect to each other based, inter alia, on empirical data, and not necessarily as indicated in the example of
As further seen in
Accordingly, upon inspection, as upon delivery, upon reading the quality indicator 100 by an inspector using a conventional barcode reader 113, the barcode in its visible state III preferably provides information to the quality indication computer 115 which enables the indication interpreter forming part thereof to provide an immediate indication of a quality status, such as a BAD indication 127. This BAD indication 127 indicates that at some time in the history of the quality indicator 100, the package 101 to which it was attached was at a temperature exceeding the predetermined temperature for more than at least a predetermined cumulative amount of time, and that this event has rendered the product in package 101 unacceptable for sale.
Should the quality indicator 100 be in the visible state I, indicating that proper actuation of the quality indicator 100 did not occur, a NON-ACTUATED indication or a BAD indication 127 may be provided to an inspector or other interested party.
It is appreciated, as discussed in more detail with reference to
As further seen in
It is appreciated that quality indication computer 130 may provide reports to various interested entities, such as the manufacturer or distributor of the products, health authorities and other governmental or private entities, to enable real-time monitoring of the quality of products offered for sale. The quality indication computer 130 may have caller ID functionality so as to be able to identify the caller, classify the caller, for example as a customer, a manufacturer's QA inspector and a health inspector, and provide an appropriate quality indication output. Additionally or alternatively, the quality indication computer 130 may send messages to supermarket management regarding remedial steps to be taken, such as refrigeration maintenance or repair instructions.
Turning now specifically to
Accordingly, upon inspection, as indicated by reference numeral 134, as upon periodic stock inspection at a retail site, upon reading the quality indicator 100 by an inspector using a conventional barcode reader 113, the barcode in its visible state IV provides information to the quality indication computer 115 which enables the indication interpreter forming part thereof to provide an immediate indication of a quality status, such as a SELL SOON indication 136. This SELL SOON indication 136 indicates that, since the predetermined time interval has elapsed, the package 101 to which it was attached should be positioned and/or priced for immediate sale.
It is seen in
Additionally or alternatively, the further inspection may take place automatically at the checkout, where the quality indicator 100 is read by a checkout scanner 148. In such a case, the barcode in its visible state V provides information to the quality indication computer 115 which enables the indication interpreter forming part thereof to provide an immediate indication of a quality status, such as a DO NOT SELL indication 150, to the checkout clerk. This DO NOT SELL indication 150 indicates that the package 101 to which it was attached may not be sold since the further predetermined time period has elapsed. It is appreciated that the DO NOT SELL indication functionality described above provides a high level of control in implementing package-specific shelf-life restrictions and thus, by eliminating uncertainty regarding the shelf life of a given product, may enable packaged products which have been maintained under optimal conditions to have longer shelf lives than would otherwise be possible.
Additionally or alternatively, a further inspection prior to the checkout may also be carried out by a customer at a suitable quality check location within the store.
Turning now to
Turning now to
Turning now to
In accordance with a preferred embodiment of the present invention, the quality indicators 200 may be assembled and/or actuated at the same location or at a location adjacent that at which the quality indicators 200 are associated with the packages 201. A suitable indicator assembler is indicated by reference numeral 202. It is appreciated that the indicator assembler 202 may be associated with an automatic actuator. It is further appreciated that the actuator may be automatic and may actuate the quality indicator after it has been produced by the indicator assembler 202.
As seen in
Different types of quality indicators may be employed for different types of packages. For example, the quality indicator used on a carton containing a plurality of individual packages may be more or less accurate or have a greater or lesser dynamic range of indications than the quality indicator used on an individual package. The dynamic range of a quality indicator may be a greater or lesser range of temperatures and/or of times. Additionally or alternatively, the quality indicator on a carton may include a quality indicator capable of indicating exceedance of additional thresholds, not included on the quality indicators of individual packages contained therein, or fewer thresholds than the quality indicators of individual packages contained therein.
In the illustrated embodiment, the quality indicators include an EAN (European Article Number) barcode. The quality indicators 200 are preferably constructed to be actuatable by pulling a pull strip 206 forming part thereof, as indicated by reference numeral 207. In the illustrated embodiment, the quality indicators 200 preferably have a visible pre-actuation state I, a different visible post-actuation state II and a visible state III indicating exceedance of a predetermined temperature, for example 21 degrees Celsius, for at least a predetermined total amount of time, for example one hour, as seen at reference numeral 225 in
The visible states are readable by a barcode reader. For example, in this illustrated embodiment, the pre-actuation state I is read as 7431348787736, the post-actuation state II is read as 7811348787736, the visible state III is read as 7811348782236, the visible state IV is read as 7817548787736, the visible state V is read as 7817562787736, the visible state VI is read as 78113487877 50 and the visible state VII is read as 7817562927736. It is appreciated that additional states of the quality indicator not presented in the illustrated embodiment may be indicated by combinations of the states described above. For example, when the temperature of the quality indicator exceeds 40 degrees Celsius for at least one hour it also exceeds 25 degrees Celsius for at least one hour, which causes the quality indicator to assume visible state III. However, the temperature in this case also exceeds 40 degrees for at least 30 minutes, which causes the quality indicator to assume the visible state VI. Therefore, this combined exceedance is indicated by a visible state which combines the visible state III and the visible state VI, and is read by a barcode reader as 7811348782250. It is further appreciated that the various visible states may occur in any suitable order and not necessarily in the order indicated by their numbering.
As further seen in
Alternatively, any of the visible states VIII, IX and X of the quality indicators 203 may be associated with barcodes which are the same as barcodes associated with states of the quality indicators 200. If the same barcode is associated with states of both types of indicators, then the identity of the quality indicator read by a barcode reader is provided to the indication interpreter by another method, for example by a manual entry to the database.
It is appreciated that the predetermined temperatures and the predetermined cumulative amounts of time may be selected as appropriate for a given application.
In contrast to the embodiment described hereinabove with reference to
It is appreciated that various types of indicators may be employed together in a quality management system. In some indicators actuation may result in the immediate activation of the quality indicator, and in other indicators activation of the quality indicator following actuation may be delayed.
It is appreciated that following elapse of the activation delay, as long as the temperature of the packages 201 does not exceed a predetermined temperature for at least a predetermined total amount of time, for example 21 degrees Celsius for one hour, and one week has not elapsed since manufacture or other activation of the quality indicator, the indicators 200 remain in the visible state II.
As seen in
As further seen in
Accordingly, upon inspection, as upon delivery, the quality indicators 203 attached to the cartons 204 which were exposed to a temperature of at least 30 degrees Celsius for a period of five and a half hours may be read by an inspector using a conventional barcode reader 213. The barcode in its visible state X preferably provides information to the quality indication computer 215 which enables the indication interpreter forming part thereof to provide an immediate indication of a quality status, such as a BAD indication 216. This BAD indication 216 indicates that at some time in the history of the quality indicator 203, the carton 204 to which it was attached was at least at the predetermined temperature for at least a predetermined total amount of time and that this event may have rendered one or more of the products in carton 204 unacceptable for sale.
Should the quality indicator 203 be in the visible state VIII, indicating that proper actuation of the quality indicator 203 did not occur, a NON-ACTUATED indication or a BAD indication 216 may be provided to an inspector or other interested party.
It is appreciated that until the cartons 204 are opened, which normally occurs only upon delivery, it is impractical to visually inspect the indicators 200 which are attached to the individual packages 201 inside the cartons 204. Depending on the circumstances, the temperature of the individual packages 201 within a carton 204 may or may not have exceeded 21 degrees Celsius for one hour and the quality indicators 200 which are attached to the packages 201 may or may not be in the further visible state III. This normally can only be seen upon opening the cartons 204 as shown in
It is a particular feature of the present invention that the time and temperature thresholds of the quality indicators 200 and 203, placed on the individual packages and the cartons containing them respectively, are preferably related in order to provide highly effective cold chain management. It is preferable that the quality indicators 203 provide a time in temperature warning even if, upon inspection, indicators 200 show that the individual packages 201 have not experienced unacceptable temperatures. In order that an unacceptable rate of false alarms not occur, the thresholds of indicators 203 and 200 are preferably calibrated with respect to each other based, inter alia, on empirical data.
As further seen in
At any stage, such as upon delivery, the quality indicator 203 can be read with a conventional barcode reader 213, which preferably communicates with a remote quality indication computer 215 and provides an immediate indication of a quality status, such as an OK indication 218, to an inspector. It is appreciated that normally until delivery, it is impractical to visually inspect indicators 200.
As stated above with relation to loading of truck A as indicated by reference numeral 210, it is preferable that the quality indicators 203 provide a time in temperature threshold exceedance warning even if, upon inspection, the quality indicators 200 show that the individual packages 201 have not experienced unacceptable temperatures for unacceptable durations. Accordingly upon subsequent reading of the quality indicators 200 on packages 201 inside a carton 204 for which no such warning was provided, as indicated by reference numeral 223 in
As seen in
Accordingly, upon inspection, as upon delivery, upon reading the quality indicator 203 by an inspector using a conventional barcode reader 213, the barcode in its visible state X preferably provides information to the quality indication computer 215 which enables the indication interpreter forming part thereof to provide an immediate indication of a quality status, such as a BAD indication 220. This BAD indication 220 indicates that at some time in the history of the quality indicator 203, the carton 204 to which it was attached was at least at the predetermined temperature for at least a predetermined total amount of time and that this event may have rendered one or more of the products in carton 204 unacceptable for sale. It is appreciated that normally until cartons 204 are opened, typically following delivery, it is impractical to visually inspect indicators 200.
Depending on the circumstances, the temperatures of the individual packages 201 within the cartons 204 may or may not have exceeded 21 degrees Celsius for one hour and the quality indicators 200 which are attached to the packages 201 may or may not be in the further visible state III. This normally can only be seen upon opening cartons 204 as shown in
As further seen from
In contrast, as indicated by reference numeral 221, the quality indicators 203 of other cartons 204 which were not exposed to a temperature of at least 30 degrees Celsius for a period of five and a half hours remained in the visible state IX. The barcode in its visible state IX preferably provides information to the quality indication computer 215 which enables the indication interpreter forming part thereof to provide an immediate OK indication 222.
Should the quality indicator 203 be in visible state VIII, indicating that proper actuation of the quality indicator 203 did not occur, a NON-ACTUATED indication or a BAD indication 220 may be provided to an inspector or other interested party.
Turning now specifically to
Barcode reader 213 preferably communicates with a remote quality indication computer 215 and provides an immediate OK indication 224 to an inspector, indicating that the temperature of some of the packages 201 did not exceed a predetermined temperature for at least a predetermined total amount of time, for example 21 degrees Celsius for one hour.
This OK indication is in contrast to the BAD indication 220 provided by the quality indicators 203 associated with cartons 204 containing these packages 201 as the result of refrigeration breakdown of truck B, as indicated by reference numeral 219 in
It is further stated above that in order that an unacceptable rate of false alarms not occur, the thresholds of the quality indicators 203 and 200 are preferably calibrated with respect to each other based, inter alia, on empirical data, and not necessarily as indicated in the example of
As further seen in
Accordingly, upon inspection, as upon delivery, upon reading the quality indicator 200 by an inspector using a conventional barcode reader 213, the barcode in its visible state III preferably provides information to the quality indication computer 215 which enables the indication interpreter forming part thereof to provide an immediate indication of a quality status, such as a BAD indication 227. This BAD indication 227 indicates that at some time in the history of the quality indicator 200, the package 201 to which it was attached was at a temperature exceeding the predetermined temperature for more than at least a predetermined cumulative amount of time, and that this event has rendered the product in package 201 unacceptable for sale.
Should the quality indicator 200 be in the visible state I, indicating that proper actuation of the quality indicator 200 did not occur, a NON-ACTUATED indication or a BAD indication 227 may be provided to an inspector or other interested party.
It is appreciated, as discussed in more detail with reference to
As further seen in
It is appreciated that the quality indication computer 230 may provide reports to various interested entities, such as the manufacturer or distributor of the products, health authorities and other governmental or private entities, to enable real-time monitoring of the quality of products offered for sale. The quality indication computer 230 may have caller ID functionality so as to be able to identify the caller, classify the caller, for example as a customer, a manufacturer's QA inspector and a health inspector, and provide an appropriate quality indication output. Additionally or alternatively, the quality indication computer 230 may send messages to supermarket management regarding remedial steps to be taken, such as refrigeration maintenance or repair instructions.
Turning now specifically to
Accordingly, upon inspection, as indicated by reference numeral 234, as upon periodic stock inspection at a retail site, upon reading the quality indicator 200 by an inspector using a conventional barcode reader 213, the barcode in its visible state IV provides information to the quality indication computer 215 which enables the indication interpreter forming part thereof to provide an immediate indication of a quality status, such as a SELL SOON indication 236. This SELL SOON indication 236 indicates that, since the predetermined time interval has elapsed, the package 201 to which it was attached should be positioned and/or priced for immediate sale.
It is seen in
Additionally or alternatively, the further inspection may take place automatically at the checkout, where the quality indicator 200 is read by a checkout scanner 248. In such a case, the barcode in its visible state V provides information to the quality indication computer 215 which enables the indication interpreter forming part thereof to provide an immediate indication of a quality status, such as a DO NOT SELL indication 250, to the checkout clerk. This DO NOT SELL indication 250 indicates that the package 201 to which it was attached may not be sold since the further predetermined time period has elapsed. It is appreciated that the DO NOT SELL indication functionality described above provides a high level of control in implementing package-specific shelf-life restrictions and thus, by eliminating uncertainty regarding the shelf life of a given product, may enable packaged products which have been maintained under optimal conditions to have longer shelf lives than would otherwise be possible.
Additionally or alternatively, a further inspection prior to the checkout may also be carried out by a customer at a suitable quality check location within the store.
Turning now to
Turning now to
Reference is now made to
Following actuation, indicator 301 presents a barcode which is in a visible state 304, typically readable by a barcode reader as 7811348787736 including a changed portion 305 as long as the temperature of the package 300 does not exceed a predetermined temperature for at least a predetermined cumulative amount of time, for example 21 degrees Celsius for one hour, as indicated by designator B. Once the temperature of the package 300 is more than the predetermined temperature for at least a predetermined cumulative amount of time, such as 21 degrees Celsius for one hour, the quality indicator presents a barcode which is in a visible state 306, typically readable by a barcode reader as 7811348782236, including a changed portion 308, as indicated by designator C. It is appreciated that once the state 306 is reached, the quality indicator preferably does not thereafter revert to the state 304 notwithstanding that the temperature of the package 300 subsequently drops below the predetermined temperature.
As illustrated in
Upon activation, once the temperature of the package 320 is more than a predetermined temperature for at least a predetermined total duration, such as 21 degrees Celsius for one hour, as indicated by designator D, the quality indicator presents a barcode which is in a visible state 326, typically readable by a barcode reader as 7811348782236, including a changed portion 328. It is appreciated that once the state 326 is reached, the quality indicator preferably does not thereafter revert to the state 324 notwithstanding that the temperature of the package 320 subsequently drops below the predetermined temperature.
As illustrated in
Once the temperature has exceeded 21 degrees Celsius for one hour, but the predetermined time period has not elapsed since actuation, the quality indicator presents a barcode which is in a visible state 346, typically readable by a barcode reader as 7811348782236, including a changed portion 347, as indicated by designator C. It is appreciated that once the state 346 is reached, the quality indicator preferably does not thereafter revert to the state 344 notwithstanding that the temperature of the package 340 subsequently drops below the predetermined temperature.
Once the predetermined time has elapsed since actuation of indicator 341, the quality indicator presents a further visible state 348, typically readable by a barcode reader as 7817548782236 including a changed portion 349, as indicated by designator D. Once an additional amount of time has elapsed, for example another week, the quality indicator presents a further visible state 350, typically readable by a barcode reader as 7817562782236, including a changed portion 351 as indicated by designator E.
As illustrated in
Following activation, once the temperature has exceeded a predetermined temperature for at least a predetermined cumulative amount of time, for example 21 degrees Celsius for one hour, but the predetermined time period, typically seven days, has not elapsed since activation, the quality indicator presents a barcode which is in visible state 366, typically readable by a barcode reader as 7811348782236, including a changed portion 367, as indicated by designator D. It is appreciated that once the state 366 is reached, the quality indicator preferably does not thereafter revert to the state 364 notwithstanding that the temperature of the package 360 subsequently drops below the predetermined temperature. Once the predetermined time has elapsed since activation of indicator 361 the quality indicator presents a further visible state 368, typically readable by a barcode reader as 7817548782236, including a changed portion 369, as indicated by designator E. Once an additional amount of time has elapsed, for example another week, the quality indicator presents a further visible state 370, typically readable by a barcode reader as 7817562782236, including a changed portion 371 as indicated by designator F.
Reference is now made to
Reference is now made to
If transparent areas 406 are colored and read together with the barcode in the first visible state 404, there is provided a barcode in a second visible state 408 typically readable by a barcode reader as 7811348787736. If both transparent areas 406 and 407 are colored and read together with the barcode in the first visible state 404, there is provided a barcode in a third visible state 409 typically readable by a barcode reader as 7811348782236. There is also a theoretical possibility that the transparent areas 407 could be colored and 406 could not be colored, but it is not practical in the present embodiment.
Disposed behind the transparent areas 407 extending perpendicular to the barcode and preferably adhered to the barcode defining layer 402 is a colorable element 410, such as Whatman No. 3 filter paper commercially available from Whatman International [CAT #: 1003917], which until colored is normally white. Disposed behind the barcode defining layer 402 and behind the colorable element 410 is a pull strip 411, corresponding to the pull strip 106 in
Disposed behind the pull strip 411 is a back layer 412 to which is preferably adhered, rearwardly of colorable element 410 but not rearwardly of the barcode, a temperature responsive coloring element 413, such as a pad, for example, K-R; 210/34/28, commercially available from Noam-Urim of Kibbutz Urim, Israel, impregnated with a coloring agent, such as Sudan Black, a black color dye [CAS: 4197-25-5], dissolved at a ratio of 1 gram per 1 kg in a solution of 74.25% Coconut oil [CAS: 8001-31-8], 24.75% Oleic acid [CAS: 112-80-1] and 1% Hexanoic acid [CAS: 142-62-1].
A colored area 415 is formed on the back layer 412, rearwardly of the transparent areas 406, in order to define high contrast with the barcode defining layer 402, when the pull strip 411 is removed.
Until such time as the pull strip 411 is removed, the quality indicator 400 is nonresponsive to temperature changes and remains in the first visible state 404.
Turning to
Turning to
It is appreciated that if the temperature thereafter drops below 21 degrees Celsius the coloring agent continues to diffuse through the colorable element 410. If, after the temperature reaches 21 degrees Celsius, the temperature drops below 17 degrees Celsius, the coloring agent becomes solid and diffusion thereof through the colorable element 410 is suspended until the temperature again reaches 21 degrees Celsius.
It is appreciated that the elapsed time from the start of diffusion of the coloring agent from the coloring element 413 along the colorable element 410 until portions of the colorable element 410 which are visible through the transparent areas 407 start to become colored is defined for example by the length of the colorable element 410 between the area in front of coloring element 413 and the area underlying the transparent areas 407. Additionally, this elapsed time is a function of the material from which the colorable element 410 is made.
As seen in
The portions of the barcode in the transparent areas 407 which are colored and appear similar to the bars of the barcode in the first visible state 404 can be read together therewith and with the transparent areas 406 as a single barcode in the third visible state 409. The portions of the barcode in the transparent areas 407 which are not colored and do not appear similar to the bars of the barcode in the first visible state 404 can be read together with the transparent areas 406 as a single barcode in the second visible state 408. Thus it is appreciated that normally at all times following actuation, a readable barcode is present.
It is appreciated that the appearance of the quality indicator 400 during the transition illustrated in
Turning now to
Reference is now made to
If transparent areas 506 are colored and read together with the barcode in the first visible state 504, there is provided a barcode in a second visible state 508 typically readable by a barcode reader as 7811348787736. If both transparent areas 506 and 507 are colored and read together with the barcode in the first visible state 504, there is provided a barcode in a third visible state 509 typically readable by a barcode reader as 7811348782236. There is also a theoretical possibility that the transparent areas 507 could be colored and 506 could not be colored, but it is not practical in the present embodiment.
Disposed behind the transparent areas 507 extending perpendicular to the barcode and preferably adhered to barcode defining layer 502 is a colorable element 510, such as Whatman No. 3 filter paper, commercially available from Whatman [CAT #: 1003917], which until colored is normally white. Disposed behind the barcode defining layer 502 and behind the colorable element 510 and preferably adhered thereto is a dissolvable activation delay layer 511 formed, for example from Ethyl Cellulose [CAS #: 9004-57-3]. The activation delay layer 511 is dissolvable by a suitable solvent, as described hereinbelow, and until dissolved prevents the passage therethrough of coloring agents employed in this embodiment of the present invention.
It is appreciated that the dissolvable activation delay layers 511 may provide selectable and possible different delay durations over any suitable range of durations which may extend from effectively zero to any suitable maximum. Such selectability may be effected, for example, by varying thickness, material, coatings and/or structure.
Disposed behind the activation delay layer 511 is a pull strip 512, corresponding to the pull strip 206 in
Disposed behind the pull strip 512 is a back layer 513 to which is preferably adhered, rearwardly of the colorable element 510 and of the activation delay layer 511 but not rearwardly of the barcode, a temperature responsive coloring element 514, such as a pad, for example, K-R; 210/34/28, commercially available from Noam-Urim of Kibbutz Urim, Israel, impregnated with a coloring agent, such as Sudan Black, a black color dye [CAS: 4197-25-5], dissolved at a ratio of 1 gram per 1 kg in a solution of 74.25% Coconut oil [CAS: 8001-31-8], 24.75% Oleic acid [CAS: 112-80-1] and 1% Hexanoic acid [CAS: 142-62-1].
Adjacent the coloring element 514 or combined therewith is a solvent 515, such as Methyl laurate [CAS #: 111-82-0] which, as noted above, is operative to dissolve the dissolvable activation delay layer 511, preferably after a predetermined period of time, which is preferably measured in hours, such as eight hours. The solvent 515 may be temperature-responsive.
A colored area 516 is formed on the back layer 513, rearwardly of the transparent areas 506, in order to define high contrast with the barcode defining layer 502, when the pull strip 512 is removed.
Until such time as the pull strip 512 is removed, the quality indicator 500 is nonresponsive to temperature changes and remains in the first visible state 504.
Turning now to
Turning now to
Turning now to
It is appreciated that if the temperature thereafter drops below 21 degrees Celsius the coloring agent continues to diffuse through the colorable element 510. If, after the temperature reaches 21 degrees Celsius, the temperature drops below 17 degrees Celsius, the coloring agent becomes solid and diffusion thereof through the colorable element 510 is suspended until the temperature again reaches 21 degrees Celsius.
It is appreciated that the elapsed time from the start of diffusion of the coloring agent from coloring element 514 along the colorable element 510 until portions of the colorable element 510 which are visible through the transparent areas 507 start to become colored is defined for example by the length of the colorable element 510 between the area in front of the coloring element 514 and the area underlying the transparent areas 507. Additionally, this elapsed time is a function of the material from which the colorable element 510 is made.
As seen in
The portions of the barcode in the transparent areas 507 which are colored and appear similar to the bars of the barcode in the first visible state 504 can be read together therewith and with the transparent areas 506 as a single barcode in the third visible state 509. The portions of the barcode in the transparent areas 507 which are not colored and do not appear similar to the bars of the barcode in the first visible state 504 can be read together with the transparent areas 506 as a single barcode in the second visible state 508. Thus it is appreciated that normally at all times following actuation, a readable barcode is present.
It is appreciated that the appearance of the quality indicator 500 during the transition illustrated in
Turning now to
Reference is now made to
If the transparent areas 606 are colored and read together with the barcode in the first visible state 604, there is provided a barcode in a second visible state 610 typically readable by a barcode reader as 7811348787736. If both transparent areas 606 and 609 are colored and read together with the barcode in the first visible state 604, there is provided a barcode in a third visible state 611 typically readable by a barcode reader as 7811348782236. If the transparent areas 606, 607 and 609 are colored and read together with the barcode in the first visible state 604, there is provided a barcode in a fourth visible state 612 typically readable by a barcode reader as 7817548782236. If the transparent areas 606, 607, 608 and 609 are colored and read together with the barcode in the first visible state 604, there is provided a barcode in a fifth visible state 613 typically readable by a barcode reader as 7817562782236.
There is also a theoretical possibility that any of the transparent areas 607, 608 and 609 could be colored and the transparent areas 606 could not be colored, but it is not practical in the present embodiment. There is an additional theoretical possibility that the transparent areas 608 could be colored and the transparent areas 607 could not be colored, but this in not practical in the present embodiment. It is also possible that a combination of transparent areas which is not presented in the present embodiment will be colored
Disposed behind the transparent areas 609 extending perpendicular to the barcode and preferably adhered to the barcode defining layer 602 is a colorable element 615, such as Whatman No. 3 filter paper, commercially available from Whatman [CAT #: 1003917], which until colored is normally white. Disposed behind the transparent areas 607 and 608 and extending in a generally serpentine arrangement mainly in areas not lying behind the barcode and preferably adhered to the barcode defining layer 602 is a colorable element 616, such as Whatman No. 3 filter paper, commercially available from Whatman [CAT #: 1003917], which until colored is also normally white. Disposed behind the barcode defining layer 602 and behind the colorable elements 615 and 616 is a pull strip 620, corresponding to the pull strip 106 in
Disposed behind the pull strip 620 is a back layer 621 to which is preferably adhered, rearwardly of the colorable element 615 but not rearwardly of the barcode, a temperature responsive coloring element 623. Also preferably adhered to the back layer 621, rearwardly of the colorable element 616 but not rearwardly of the barcode, is a coloring element 625, which is not temperature responsive in its operative temperature range. The coloring element 623 may be for example a pad, for example, K-R; 210/34/28, commercially available from Noam-Urim of Kibbutz Urim, Israel, impregnated with a coloring agent, such as Sudan Black, a black color dye [CAS: 4197-25-5], dissolved at a ratio of 1 gram per 1 kg in Coconut oil [CAS: 8001-31-8]. The coloring element 625 may be for example a pad, for example, K-R; 210/34/28, commercially available from Noam-Urim of Kibbutz Urim, Israel, impregnated with a coloring agent such as Sudan Black, a black color dye [CAS: 4197-25-5], dissolved at a ratio of 1 gram per 1 kg in Methyl laurate [CAS #: 111-82-0].
A colored area 627 is formed on the back layer 621, rearwardly of the transparent areas 606, in order to define high contrast with the barcode defining layer 602, when the pull strip 620 is removed.
Until such time as the pull strip 620 is removed, the quality indicator 600 is nonresponsive to temperature changes and elapsed time and remains in the first visible state 604.
Turning to
Following removal of the pull strip 620 the coloring agent in the coloring element 625, which is not temperature responsive in its operative temperature range, starts to diffuse through the colorable element 616.
Turning now to
It is appreciated that if, before the elapse of the predetermined amount of time the temperature drops below 21 degrees Celsius the coloring agent continues to diffuse through the colorable element 615. If, after the temperature reaches 21 degrees Celsius, the temperature drops below 17 degrees Celsius, the coloring agent becomes solid and diffusion thereof through the colorable element 615 is suspended until the temperature again reaches 21 degrees Celsius.
It is further appreciated that the elapsed time from the start of diffusion of the coloring agent from the coloring element 623 along the colorable element 615 until portions of the colorable element 615 which are visible through the transparent areas 609 start to become colored is defined for example by the length of the colorable element 615 between the area in front of the coloring element 623 and the area underlying the transparent areas 609. Additionally, this elapsed time is a function of the material from which the colorable element 615 is made.
It is also appreciated that the elapsed time from the start of diffusion of the coloring agent from the coloring element 625 along the colorable element 616 until portions of the colorable element 616 which are visible through the transparent areas 607 and 608 start to become colored is defined for example by the length of the colorable element 616 between the area in front of the coloring element 625 and the area underlying the transparent areas 607 and 608. Additionally, this elapsed time is a function of the material from which the colorable element 616 is made.
It is further appreciated that the length of the colorable element 616 that leads to the transparent areas 608 may be greater than the length of the colorable element 616 that leads to the transparent areas 607, and correspondingly the time taken for the coloring agent in the coloring element 625 to reach the transparent areas 608 may be longer than the time required for the coloring agent to reach the transparent areas 607.
As seen in
The portions of the barcode in the transparent areas 607 which are colored and appear similar to the bars of the barcode in the first visible state 604 can be read together therewith and with the transparent areas 606 and 609 as a single barcode in the fourth visible state 612. The portions of the barcode in the transparent areas 607 which are not colored and do not appear similar to the bars of the barcode in the first visible state 604 can be read together with the transparent areas 606 and 609 as a single barcode in the third visible state 611. Thus it is appreciated that normally at all times following actuation, a readable barcode is present.
It is appreciated that the appearance of the quality indicator 600 during the transition illustrated in
Turning now to
Turning to
Reference is now made to
If the transparent areas 706 are colored and read together with the barcode in the first visible state 704, there is provided a barcode in a second visible state 710 typically readable by a barcode reader as 7811348787736. If both transparent areas 706 and 709 are colored and read together with the barcode in the first visible state 704, there is provided a barcode in a third visible state 711 typically readable by a barcode reader as 7811348782236. If the transparent areas 706, 707 and 709 are colored and read together with the barcode in the first visible state 704, there is provided a barcode in a fourth visible state 712 typically readable by a barcode reader as 7817548782236. If the transparent areas 706, 707, 708 and 709 are colored and read together with the barcode in the first visible state 704, there is provided a barcode in a fifth visible state 713 typically readable by a barcode reader as 7817562782236.
There is also a theoretical possibility that any of the transparent areas 707, 708 and 709 could be colored and the transparent areas 706 could not be colored, but it is not practical in the present embodiment. There is an additional theoretical possibility that the transparent areas 708 could be colored and the transparent areas 707 could not be colored, but this in not practical in the present embodiment. It is also possible that a combination of transparent areas which is not presented in the present embodiment will be colored.
Disposed behind the transparent areas 709 extending perpendicular to the barcode and preferably adhered to the barcode defining layer 702 is a colorable element 715, such as Whatman No. 3 filter paper, commercially available from Whatman [CAT #: 1003917], which until colored is normally white. Disposed behind the transparent areas 707 and 708 and extending in a generally serpentine arrangement mainly in areas not lying behind the barcode and preferably adhered to the barcode defining layer 702 is a colorable element 716, such as Whatman No. 3 filter paper, commercially available from Whatman [CAT #: 1003917], which until colored is also normally white. Disposed behind the barcode defining layer 702 and behind the colorable element 715 and preferably adhered thereto is a dissolvable activation delay layer 717 formed, for example from Ethyl Cellulose [CAS #: 9004-57-3]. Disposed behind the barcode defining layer 702 and behind the colorable element 716 and preferably adhered thereto is a dissolvable activation delay layer 718 formed, for example from Ethyl Cellulose [CAS #: 9004-57-3]. The dissolvable activation delay layers 717 and 718 are dissolvable by suitable solvents, as described hereinbelow, and until dissolved prevent the passage therethrough of coloring agents employed in this embodiment of the present invention.
It is appreciated that one or both dissolvable activation delay layers 717 and 718 may provide selectable and possible different delay durations over any suitable range of durations which may extend from effectively zero to any suitable maximum. Such selectability may be effected, for example, by varying thickness, material, coatings and/or structure.
Disposed behind the dissolvable activation delay layers 717 and 718 is a pull strip 720, corresponding to the pull strip 206 in
Disposed behind the pull strip 720 is a back layer 721 to which is preferably adhered, rearwardly of the colorable element 715 and of the activation delay layer 717 but not rearwardly of the barcode, a temperature responsive coloring element 723. Also preferably adhered to the back layer 721, rearwardly of the colorable element 716 and of the activation delay layer 718 and preferably not rearwardly of the barcode, is a coloring element 725 which is not temperature responsive in its operative temperature range. The coloring element 723 may be for example a pad, for example, K-R; 210/34/28, commercially available from Noam-Urim of Kibbutz Urim, Israel, impregnated with a coloring agent, such as Sudan Black, a black color dye [CAS: 4197-25-5], dissolved at a ratio of 1 gram per 1 kg in Coconut oil [CAS: 8001-31-8]. The coloring element 725 may be for example a pad, for example, K-R; 210/34/28, commercially available from Noam-Urim of Kibbutz Urim, Israel, impregnated with a coloring agent such as Sudan Black, a black color dye [CAS: 4197-25-5], dissolved at a ratio of 1 gram per 1 kg in Methyl laurate [CAS #: 111-82-0].
Adjacent the coloring element 723 or combined therewith is a solvent 726. Adjacent the coloring element 725 or combined therewith is a solvent 727. The solvents 726 and 727 may be for example Methyl laurate [CAS #: 111-82-0], which, as noted above, are operative to dissolve the dissolvable activation delay layers 717 and 718, preferably after a predetermined period of time, which is preferably measured in hours, such as eight hours. Any of the solvents 726 and 727 may be temperature responsive.
A colored area 728 is formed on the back layer 721, rearwardly of the transparent areas 706, in order to define high contrast with the barcode defining layer 702, when the pull strip 720 is removed.
Until such time as the pull strip 720 is removed, the quality indicator 700 is nonresponsive to temperature changes and elapsed time and remains in the first visible state 704.
Turning to
Turning to
Turning to
It is appreciated that if, before the elapse of the predetermined amount of time the temperature drops below 21 degrees Celsius the coloring agent continues to diffuse through the colorable element 715. If, after the temperature reaches 21 degrees Celsius, the temperature drops below 17 degrees Celsius, the coloring agent becomes solid and diffusion thereof through the colorable element 715 is suspended until the temperature again reaches 21 degrees Celsius.
It is further appreciated that the elapsed time from the start of diffusion of the coloring agent from the coloring element 723 along the colorable element 715 until portions of the colorable element 715 which are visible through the transparent areas 709 start to become colored is defined for example by the length of the colorable element 715 between the area in front of the coloring element 723 and the area underlying the transparent areas 709. Additionally, this elapsed time is a function of the material from which the colorable element 715 is made.
It is also appreciated that the elapsed time from the start of diffusion of the coloring agent from the coloring element 725 along the colorable element 716 until portions of the colorable element 716 which are visible through the transparent areas 707 and 708 start to become colored is defined for example by the length of the colorable element 716 between the area in front of the coloring element 725 and the area underlying the transparent areas 707 and 708. Additionally, this elapsed time is a function of the material from which the colorable element 716 is made.
It is further appreciated that the length of the colorable element 716 that leads to the transparent areas 708 may be greater than the length of the colorable element 716 that leads to the transparent areas 707, and correspondingly the time taken for the coloring agent in the coloring element 725 to reach the transparent areas 708 may be longer than the time required for the coloring agent to reach the transparent areas 707.
Turning to
The portions of the barcode in the transparent areas 707 which are colored and appear similar to the bars of the barcode in the first visible state 704 can be read together therewith and with the transparent areas 706 and 709 as a single barcode in the fourth visible state 712. The portions of the barcode in the transparent areas 707 which are not colored and do not appear similar to the bars of the barcode in the first visible state 704 can be read together with the transparent areas 706 and 709 as a single barcode in the third visible state 711. Thus it is appreciated that normally at all times following actuation, a readable barcode is present.
It is appreciated that the appearance of the quality indicator 700 during the transition illustrated in
Turning now to
Turning to
Reference is now made to
Reference is now made to
As seen in
Alternatively, the background area and the barcode are printed in other colors as to define high contrast therebetween. The barcode in the first visible state 804 is machine readable in this embodiment and is typically readable by a barcode reader as 7431348787736.
If the transparent areas 806 are colored and read together with the barcode in the first visible state 804, there is provided a barcode in a second visible state 810 typically readable by a barcode reader as 7811348787736. If both transparent areas 806 and 807 are colored and read together with the barcode in the first visible state 804, there is provided a barcode in a third visible state 811 typically readable by a barcode reader as 7817548787736. If the transparent areas 806, 807 and 808 are colored and read together with the barcode in the first visible state 804, there is provided a barcode in a fourth visible state 812 typically readable by a barcode reader as 78175782236. There is also a theoretical possibility that the transparent areas 807 or 808 could be colored and the transparent areas 806 could not be colored, but it is not practical in the present embodiment. It is also possible that a combination of transparent areas which are not colored together in the present embodiment will be colored.
Disposed behind the transparent areas 808 extending perpendicular to the barcode and preferably adhered to the barcode defining layer 802 is a colorable element 815, such as Whatman No. 3 filter paper, commercially available from Whatman [CAT #: 1003917], which until colored is normally white. Disposed behind the transparent areas 807 extending perpendicular to the barcode and preferably adhered to the barcode defining layer 802 is a colorable element 816, such as Whatman No. 3 filter paper, commercially available from Whatman [CAT #: 1003917], which until colored is also normally white.
Disposed behind the barcode defining layer 802 and behind the colorable elements 815 and 816 is a pull strip 820. The pull strip 820 is preferably white and prevents the passage therethrough of coloring agents employed in this embodiment of the invention. Alternatively, the pull strip 820 is transparent. Preferably, the pull strip 820 is formed of polyester, for example Melinex® 401, commercially available from DuPont of Wilmington, Del. The pull strip 820 is preferably 75 micrometers thick and is preferably bifurcated as illustrated.
Disposed behind the pull strip 820 is a back layer 821 which is preferably black, and to which is preferably adhered, rearwardly of the colorable element 815 but not rearwardly of the barcode, a temperature responsive coloring element 823. Also preferably adhered to the back layer 821, rearwardly of the colorable element 816 but not rearwardly of the barcode, is another temperature responsive coloring element 825.
The coloring element 823 may be, for example, a pad, for example, K-R; 210/34/28, commercially available from Noam-Urim of Kibbutz Urim, Israel, impregnated with a coloring agent, such as Sudan Black, a black color dye [CAS: 4197-25-5], dissolved at a ratio of 1 gram per 1 kg in Coconut oil [CAS: 8001-31-8]. The coloring element 825 may be for example a pad, for example, K-R; 210/34/28, commercially available from Noam-Urim of Kibbutz Urim, Israel, impregnated with a coloring agent, such as Sudan Black, a black color dye [CAS: 4197-25-5], dissolved at a ratio of 1 gram per 1 kg in a solution of 25% Coconut oil [CAS: 8001-31-8] and 75% Oleic acid [CAS: 112-80-1].
The colorable element 815 and the coloring element 823 are preferably separated from the colorable element 816 and the coloring element 825 by a partition 827 which does not allow the coloring agent from the coloring element 823 to color the colorable element 816 or the coloring agent from the coloring element 825 to color the colorable element 815. The pull strip 820 is bifurcated in order to accommodate the partition 827.
It is appreciated that the length of the colorable element 816 that leads to the transparent areas 807 may be greater than the length of the colorable element 815 that leads to the transparent areas 808, and correspondingly the time taken for the coloring agent in the coloring element 825 to reach the transparent areas 807 may be longer than the time required for the coloring agent in the coloring element 823 to reach the transparent areas 808.
Until such time as the pull strip 820 is removed, the quality indicator 800 is nonresponsive to temperature changes and remains in the first visible state 804.
Turning to
It is appreciated that in accordance with an alternative embodiment of the present invention, the pull strip 820 may be transparent and the barcode may remain in the first visible state 804 after the pull strip is removed.
Turning to
It is appreciated that the elapsed time from the start of diffusion of the coloring agent from the coloring element 825 along the colorable element 816 until portions of the colorable element 816 which are visible through the transparent areas 807 start to become colored is defined for example by the length of the colorable element 816 between the area in front of the coloring element 825 and the area underlying the transparent areas 807. Additionally, this elapsed time is a function of the material from which the colorable element 816 is made.
It is also appreciated that the elapsed time from the start of diffusion of the coloring agent from the coloring element 823 along the colorable element 815 until portions of the colorable element 815 which are visible through the transparent areas 808 start to become colored is defined for example by the length of the colorable element 815 between the area in front of the coloring element 823 and the area underlying the transparent areas 808. Additionally, this elapsed time is a function of the material from which the colorable element 815 is made.
As seen in
The portions of the barcode in the transparent areas 807 which are colored and appear similar to the bars of the barcode in the first visible state 804 can be read together therewith and with areas 806 as a single barcode in the third visible state 811. The portions of the barcode in the transparent areas 807 which are not colored and do not appear similar to the bars of the barcode in the first visible state 804 can be read together with the transparent areas 806 as a single barcode in the second visible state 810. Thus it is appreciated that normally at all times following actuation, a readable barcode is present.
It is appreciated that the appearance of the quality indicator 800 during the transition illustrated in
Turning now to
Turning now to
It is appreciated that if, prior to the elapse of the predetermined amount of time, the temperature drops below 21 degrees Celsius, the coloring agent continues to diffuse through the colorable element 815. If, after the temperature reaches 21 degrees Celsius, the temperature drops below 17 degrees Celsius, the coloring agent becomes solid and diffusion thereof through the colorable element 815 is suspended until the temperature again reaches 21 degrees Celsius.
Reference is now made to
As seen in
Alternatively, the background area and the barcode are printed in other colors as to define high contrast therebetween. The barcode in the first visible state 904 is machine readable in this embodiment and is typically readable by a barcode reader as 7431348787736.
If the transparent areas 906 are colored and read together with the barcode in the first visible state 904, there is provided a barcode in a second visible state 910 typically readable by a barcode reader as 7811348787736. If both transparent areas 906 and 907 are colored and read together with the barcode in the first visible state 904, there is provided a barcode in a third visible state 911 typically readable by a barcode reader as 7817548787736. If the transparent areas 906, 907 and 908 are colored and read together with the barcode in the first visible state 904, there is provided a barcode in a fourth visible state 912 typically readable by a barcode reader as 78175782236. There is also a theoretical possibility that the transparent areas 907 or 908 could be colored and the transparent areas 906 could not be colored, but it is not practical in the present embodiment. It is also possible that a combination of transparent areas which are not colored together in the present embodiment will be colored.
Disposed behind the transparent areas 908 extending perpendicular to the barcode and preferably adhered to the barcode defining layer 902 is a colorable element 915, such as Whatman No. 3 filter paper commercially available from Whatman [CAT #: 1003917], which until colored is normally white. Disposed behind the transparent areas 907 extending perpendicular to the barcode and preferably adhered to the barcode defining layer 902 is a colorable element 916, such as Whatman No. 3 filter paper commercially available from Whatman [CAT #: 1003917], which until colored is also normally white.
Disposed behind the barcode defining layer 902 and behind the colorable element 915 and preferably adhered thereto is a dissolvable activation delay layer 917, formed, for example from Ethyl Cellulose [CAS #: 9004-57-3]. Disposed behind the barcode defining layer 902 and behind the colorable element 916 and preferably adhered thereto is a dissolvable activation delay layer 918, formed, for example from Ethyl Cellulose [CAS #: 9004-57-3]. The dissolvable activation delay layers 917 and 918 are dissolvable by suitable solvents, as described hereinbelow, and until dissolved prevent the passage therethrough of coloring agents employed in this embodiment of the present invention.
It is appreciated that one or both dissolvable activation delay layers 917 and 918 may provide selectable and possibly different delay durations over any suitable range of durations which may extend from effectively zero to any suitable maximum. Such selectability may be effected, for example, by varying thickness, material, coatings and/or structure.
Disposed behind the dissolvable activation delay layers 917 and 918 is a pull strip 920. The pull strip 920 is preferably white and prevents the passage therethrough of coloring agents and solvents employed in this embodiment of the invention. Alternatively, the pull strip 920 is transparent. Preferably, the pull strip 920 is formed of polyester, for example Melinex® 401, commercially available from DuPont of Wilmington, Del. The pull strip 920 is preferably 75 micrometers thick and is preferably bifurcated as illustrated.
Disposed behind the pull strip 920 is a back layer 921 which is preferably black, and to which is preferably adhered, rearwardly of the colorable element 915 and of the activation delay layer 917 but not rearwardly of the barcode, a temperature responsive coloring element 923. Also preferably adhered to the back layer 921, rearwardly of the colorable element 916 and of the activation delay layer 918 but not rearwardly of the barcode, is another temperature responsive coloring element 925.
The coloring element 923 may be, for example, a pad, for example, K-R; 210/34/28, commercially available from Noam-Urim of Kibbutz Urim, Israel, impregnated with a coloring agent, such as Sudan Black, a black color dye [CAS: 4197-25-5], dissolved at a ratio of 1 gram per 1 kg in Coconut oil [CAS: 8001-31-8]. The coloring element 925 may be for example a pad, for example, K-R; 210/34/28, commercially available from Noam-Urim of Kibbutz Urim, Israel, impregnated with a coloring agent, such as Sudan Black, a black color dye [CAS: 4197-25-5], dissolved at a ratio of 1 gram per 1 kg in a solution of 25% Coconut oil [CAS: 8001-31-8] and 75% Oleic acid [CAS: 112-80-1].
The colorable element 915 and the coloring element 923 are preferably separated from the colorable element 916 and the coloring element 925 by a partition 927 which does not allow coloring agent from the coloring element 923 to color the colorable element 916 or coloring agent from the coloring element 925 to color the colorable element 915. The pull strip 920 is bifurcated in order to accommodate the partition 927.
Adjacent the coloring element 923 or combined therewith is a solvent 926. Adjacent the coloring element 925 or combined therewith is a solvent 928. The solvents 926 and 928 may be for example Methyl laurate [CAS #: 111-82-0], which, as noted above, are operative to dissolve the dissolvable activation delay layers 917 and 918, preferably after a predetermined period of time, which is preferably measured in hours, such as eight hours.
It is appreciated that the length of the colorable element 916 that leads to the transparent areas 907 may be greater than the length of the colorable element 915 that leads to the transparent areas 908, and correspondingly the time taken for the coloring agent in the coloring element 925 to reach the transparent areas 907 may be longer than the time required for the coloring agent in the coloring element 923 to reach the transparent areas 908.
Until such time as the pull strip 920 is removed, the quality indicator 900 is nonresponsive to temperature changes and remains in the first visible state 904.
Turning now to
It is appreciated that in accordance with an alternative embodiment of the present invention, the pull strip 920 may be transparent and the barcode may remain in the first visible state 904 after the pull strip is removed.
Turning now to
Turning to
It is appreciated that the elapsed time from the start of diffusion of the coloring agent from the coloring element 925 along the colorable element 916 until portions of the colorable element 916 which are visible through the transparent areas 907 start to become colored is defined for example by the length of the colorable element 916 between the area in front of coloring element 925 and the area underlying the transparent areas 907. Additionally, this elapsed time is a function of the material from which the colorable element 916 is made.
It is also appreciated that the elapsed time from the start of diffusion of the coloring agent from the coloring element 923 along the colorable element 915 until portions of the colorable element 915 which are visible through the transparent areas 908 start to become colored is defined for example by the length of the colorable element 915 between the area in front of coloring element 923 and the area underlying the transparent areas 908. Additionally, this elapsed time is a function of the material from which the colorable element 915 is made.
As seen in
The portions of the barcode in the transparent areas 907 which are colored and appear similar to the bars of the barcode in the first visible state 904 can be read together therewith and with the transparent areas 906 as a single barcode in the third visible state 911. The portions of the barcode in the transparent areas 907 which are not colored and do not appear similar to the bars of the barcode in the first visible state 904 can be read together with the transparent areas 906 as a single barcode in the second visible state 910. Thus it is appreciated that normally at all times following actuation, a readable barcode is present.
It is appreciated that the appearance of the quality indicator 900 during the transition illustrated in
Turning now to
Turning now to
It is appreciated that if, prior to the elapse of the predetermined amount of time, the temperature drops below 21 degrees Celsius, the coloring agent continues to diffuse through the colorable element 915. If, after the temperature reaches 21 degrees Celsius, the temperature drops below 17 degrees Celsius, the coloring agent becomes solid and diffusion thereof through the colorable element 915 is suspended until the temperature again reaches 21 degrees Celsius.
It is appreciated that the present invention also encompasses indicators wherein the first visible state has more digits than the second visible state and similarly where each subsequent visible state has fewer digits than the preceding visible state. This may readily be achieved in accordance with the present invention, for example, by initially locating a black background or black colorable elements behind transparent areas, similar to the transparent areas described hereinabove with reference to
Reference is now made to
As seen in
Disposed behind laminate 1002 in the sense of
Laminate 1005 preferably includes three layers. The outermost layer in the sense of
It is also seen from
The innermost laminate in the sense of
The pull strip indicated by reference numeral 820 in
Disposed behind layer 1016 in the sense of
Disposed behind laminate 1015 in the sense of
Reference is now made to
As described hereinabove with reference to
In the illustrated embodiment, the quality indicators 1101 and 1103 preferably include an EAN (European Article Number) barcode. When read by a conventional barcode reader 1104 or by a conventional checkout scanner 1106, quality indicators 1101 and 1103 provide barcode reader readable indications of exceedance of one or more thresholds of product quality affecting parameters, such as temperature and/or elapsed time and/or a combination of elapsed time and temperature to an indication interpreter which preferably forms part of or is otherwise connected to a quality indication computer 1108. The quality indication computer 1108 may be remote from the indicator reader.
As indicated above with reference to
As indicated above with reference to
The quality indicators 1101 and 1103 may differ in that they have different effective temperature and/or time thresholds and may also indicate exceedance of different quality affecting parameters.
It is further seen in
In the illustrated embodiment, product identification information is entered by scanning additional indicators 1110 and 1112, including, for example, a UPC code, which are attached to packages 1100 and to cartons 1102, respectively. Alternatively, the product-related parameters and the other parameters, such as those relating to the quality indicator may be provided by the quality indicators 1101 and 1103 themselves. As a further alternative, these parameters may be provided by sensors, a priori information otherwise available to the indication interpreter or by manual entry.
As seen in the illustrated embodiment, the quality indication computer 1108 maintains a database which preferably includes at least an event description table, such as Table III, and a product status table, such as Table IV.
Upon receipt of inputs identifying a product as shown in Table II and output indications provided by a quality indicator reader indicating an event described in Table III corresponding to the same product the quality indication computer 1108 is operative to provide product quality status outputs. In order to provide product quality status outputs the quality indication computer 1108 is operative to employ a product status table, such as Table IV, typically including product description data such as product description, package type and indicator identifier, an event barcode and a product status as follows:
As seen in the second and the third rows of Table IV, time and temperature thresholds of indicators 1101 and 1103, placed on the individual packages 1100 of a fresh rib steak and the cartons 1102 containing them respectively, are preferably related and calibrated with respect to each other based, inter alia, on empirical data. This feature allows for the evaluation of quality of individually packaged products even when it is not possible to open the cartons and examine individual packages, such as for example, during transport.
As further seen in Table IV, there may be a great variation in the effect of a given event depending on the type of product. Thus, for example, exposure to 21 degrees Celsius for one hour may cause fresh meat to be rendered unfit for sale but may only mildly affect the quality or oranges.
In accordance with an additional feature of the present invention, the barcode may be read by a consumer employing an imager-equipped telephone or other suitable mobile communicator 1115 which may be identical to mobile communicator 128 in
Based on the scanned barcode and identification of the caller, the quality indication computer 1117 provides product status information both to quality assurance inspectors and to consumers. Additionally or alternatively, the quality indication computer 1117 may send messages to the supermarket management regarding remedial steps to be taken, such as refrigeration maintenance instructions.
It will be appreciated by persons skilled in the art that the present invention is not limited by what has been particularly shown and described hereinabove. Rather the scope of the present invention includes both combinations and sub-combinations of various features of the invention and modifications thereof which may occur to persons skilled in the art upon reading the foregoing description and which are not in the prior art.
| Number | Date | Country | Kind |
|---|---|---|---|
| PCTIL2007001411 | Nov 2007 | WO | international |
This application is a continuation of U.S. patent application Ser. No. 15/800,660, filed Nov. 1, 2017, entitled “SYSTEM AND METHOD FOR QUALITY MANAGEMENT UTILIZING BARCODE INDICATORS”, now U.S. Pat. No. 10,262,251, which is a continuation of U.S. patent application Ser. No. 15/398,951, filed Jan. 5, 2017, entitled “SYSTEM AND METHOD FOR QUALITY MANAGEMENT UTILIZING BARCODE INDICATORS”, now U.S. Pat. No. 9,836,678, which is a continuation of U.S. patent application Ser. No. 14/823,702, filed Aug. 11, 2015, entitled “SYSTEM AND METHOD FOR QUALITY MANAGEMENT UTILIZING BARCODE INDICATORS”, now U.S. Pat. No. 9,558,439, which is a continuation of U.S. patent application Ser. No. 13/958,893, filed Aug. 5, 2013, entitled “SYSTEM AND METHOD FOR QUALITY MANAGEMENT UTILIZING BARCODE INDICATORS”, now U.S. Pat. No. 9,135,544, which is a continuation of U.S. patent application Ser. No. 12/743,209, filed Aug. 23, 2010, entitled “SYSTEM AND METHOD FOR QUALITY MANAGEMENT UTILIZING BARCODE INDICATORS”, now U.S. Pat. No. 8,500,014, which is a U.S. National Phase application under 35 U.S.C. § 371 of International Patent Application No. PCT/IL2008/001495, filed Nov. 13, 2008, and claims the priority of U.S. Provisional Application No. 61/131,644, filed Jun. 10, 2008 and International Patent Application No. PCT/IL2007/001411, filed Nov. 14, 2007, all of which are incorporated by reference herein. Reference is made to PCT Patent Application No. PCT/IL07/000547, filed May 6, 2007 and entitled “A System And Method For Improved Quality Management In A Product Logistic Chain”, to PCT Patent Application No. PCT/IL07/01411, filed Nov. 14, 2007 and entitled “A System And Method For Quality Management Utilizing Barcode Indicators”, and to U.S. Provisional Application No. 61/131,644, filed Jun. 10, 2008 and entitled “A System And Method For Quality Management Utilizing Barcode Indicators”, the disclosures of which are hereby incorporated by reference. Priority is hereby claimed under 37 CFR 1.78(a) (1) and (2)(i) from PCT Patent Application No. PCT/IL07/01411, filed Nov. 14, 2007 and entitled “A System And Method For Quality Management Utilizing Barcode Indicators”, and under 37 CFR 1.78(a) (4) and (5)(i) from U.S. Provisional Application No. 61/131,644, filed Jun. 10, 2008 and entitled “A System And Method For Quality Management Utilizing Barcode Indicators”.
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| Number | Date | Country | |
|---|---|---|---|
| 20190286957 A1 | Sep 2019 | US |
| Number | Date | Country | |
|---|---|---|---|
| 61131644 | Jun 2008 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 15800660 | Nov 2017 | US |
| Child | 16364618 | US | |
| Parent | 15398951 | Jan 2017 | US |
| Child | 15800660 | US | |
| Parent | 14823702 | Aug 2015 | US |
| Child | 15398951 | US | |
| Parent | 13958893 | Aug 2013 | US |
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| Parent | 12743209 | US | |
| Child | 13958893 | US |
