Exemplary embodiments of the present invention relate to a blender, and more particularly to a container of a blender configured to receive one or more food items therein.
Blenders are commonly used to process a plurality of different food products, including liquids, solids, semi-solids, gels and the like. It is well-known that blenders are useful devices for blending, cutting, and dicing food products in a wide variety of commercial settings, including home kitchen use, professional restaurant or food services use, and large-scale industrial use. They offer a convenient alternative to chopping or dicing by hand, and often come with a range of operational settings and modes adapted to provide specific types or amounts of food processing, e.g., as catered to particular food products.
Several benefits can be achieved by forming a vacuum within a blender container or attachment either prior to or after a blending operation. For example, by forming a vacuum prior to a blending operation, the overall degradation of the nutritional properties of the ingredients being processes may be reduced. Accordingly, a blender container or attachment may include a seal that is movable to selectively form a vacuum within the blender container. However, when the blender container is used in high vibration environments, such as in a vehicle or when the container is being carried in a bag for example, it is possible that liquid or other ingredients from the interior of the blender container may leak through the seal.
According to an embodiment, a reservoir assembly for a food processing system including a vacuum mechanism includes a housing having a hollow interior, an inlet pipe extending through said housing into said hollow interior, a fluid flow path from said hollow interior to the vacuum mechanism, and a valve positioned within said hollow interior, said valve being movable to control a flow of air provided to the vacuum mechanism via said fluid flow path.
In addition to one or more of the features described above, or as an alternative, in further embodiments said valve is movable between a first position and a second position in response to a volume of contents of said hollow interior.
In addition to one or more of the features described above, or as an alternative, in further embodiments said valve is a float valve, said float valve being buoyant relative to said volume of contents of said hollow interior.
In addition to one or more of the features described above, or as an alternative, in further embodiments when said valve is in said second position, an inlet to said fluid flow path is sealed.
In addition to one or more of the features described above, or as an alternative, in further embodiments said an inlet is offset from a bottom surface of said housing.
In addition to one or more of the features described above, or as an alternative, in further embodiments said valve includes a mating surface and said inlet of said conduit includes a sealing ring, said mating surface and said sealing ring being engaged to seal said conduit when said valve is in said second position.
According to another embodiment, a food processing system includes a vacuum mechanism, an attachment configured for removable association with vacuum mechanism, and a reservoir assembly arranged upstream from said vacuum mechanism relative to a fluid flow provided to said vacuum mechanism from said attachment. The reservoir assembly is positioned relative to said vacuum mechanism and said attachment to collect particulate from said attachment during operation of said vacuum mechanism.
In addition to one or more of the features described above, or as an alternative, in further embodiments said food processing system further comprises a food processor base and said reservoir assembly is associated with said food processor base.
In addition to one or more of the features described above, or as an alternative, in further embodiments said reservoir assembly is removably connectable to said food processor base.
In addition to one or more of the features described above, or as an alternative, in further embodiments said reservoir assembly is disposed at an upper surface of said food processor base.
In addition to one or more of the features described above, or as an alternative, in further embodiments said attachment further comprises a vacuum passage, and said vacuum passage is fluidly connected to said reservoir assembly when said attachment is associated with said food processor base.
In addition to one or more of the features described above, or as an alternative, in further embodiments said reservoir assembly further comprises: a housing having a hollow interior, an inlet for providing fluid to said hollow interior, an outlet fluidly coupled to said vacuum mechanism, and a valve arranged within said hollow interior, said valve being movable to control a flow of fluid provided to said vacuum mechanism.
In addition to one or more of the features described above, or as an alternative, in further embodiments said valve is translatable between a first position and a second position in response to a volume of particulate within said hollow interior.
In addition to one or more of the features described above, or as an alternative, in further embodiments said valve is a float valve, said float valve being buoyant relative to said volume of particulate within said hollow interior.
In addition to one or more of the features described above, or as an alternative, in further embodiments said valve is in said second position when said volume of particulate within said hollow interior exceeds a maximum threshold.
In addition to one or more of the features described above, or as an alternative, in further embodiments when said valve is in said second position, said outlet fluidly coupled to said vacuum mechanism is sealed.
In addition to one or more of the features described above, or as an alternative, in further embodiments operation of said vacuum mechanism is automatically stopped when a fluid flow from said outlet to said vacuum mechanism falls below a minimum threshold.
According to another embodiment, a reservoir assembly for a food processing system including a vacuum mechanism includes a housing having a hollow interior, an inlet pipe extending through said housing into said hollow interior, a fluid flow path from said hollow interior to the vacuum mechanism, and a plurality of electrical contactors positioned within said hollow interior. The plurality of electrical contactors is operable to detect when a volume of liquid within said hollow interior exceeds an allowable threshold.
In addition to one or more of the features described above, or as an alternative, in further embodiments when said volume of liquid within said hollow interior is less than said allowable threshold, said plurality of electrical contactors are not electrically connected.
In addition to one or more of the features described above, or as an alternative, in further embodiments when said volume of liquid within said hollow interior exceeds said allowable threshold, said liquid electrically connects said plurality of electrical contactors.
In addition to one or more of the features described above, or as an alternative, in further embodiments when said volume of liquid within said hollow interior exceeds said allowable threshold, said vacuum mechanism is inactive.
According to another embodiment, a reservoir assembly connectable to an attachment of a food processing system including a vacuum mechanism includes a housing having a hollow interior arrangeable in fluid communication with the vacuum mechanism and an inlet pipe extending through said housing into said hollow interior, said inlet pipe being movable relative to said housing to form a seal with the attachment.
In addition to one or more of the features described above, or as an alternative, in further embodiments said inlet pipe is translatable relative to said housing.
In addition to one or more of the features described above, or as an alternative, in further embodiments said inlet pipe is pivotable relative to said housing.
In addition to one or more of the features described above, or as an alternative, in further embodiments said inlet pipe is movable between a first position and a second position, and in said first position an end of said inlet pipe extends beyond an upper surface of said housing and in said second position, said end of said inlet pipe is arranged flush with or vertically below said upper surface.
In addition to one or more of the features described above, or as an alternative, in further embodiments comprising a movement mechanism operably coupled to said inlet pipe, said movement mechanism including a body and a biasing mechanism operably coupled to said body.
In addition to one or more of the features described above, or as an alternative, in further embodiments said body includes a protrusion that extends beyond an upper surface of said housing, said protrusion including at least one angled surface.
In addition to one or more of the features described above, or as an alternative, in further embodiments said body and said inlet pipe are movable in response to application of a force to said at least one angled surface.
In addition to one or more of the features described above, or as an alternative, in further embodiments said force is generated as the attachment is moved laterally relative to said housing of the reservoir assembly.
In addition to one or more of the features described above, or as an alternative, in further embodiments said movement mechanism further comprises a lever operably coupled to said body, said biasing mechanism being directly connected to said lever.
In addition to one or more of the features described above, or as an alternative, in further embodiments said body includes a first plurality of teeth and said lever includes a second plurality of teeth arranged in meshing engagement with said first plurality of teeth.
In addition to one or more of the features described above, or as an alternative, in further embodiments said body and said inlet pipe are movable in response to application of a force to said lever.
In addition to one or more of the features described above, or as an alternative, in further embodiments said force is generated as the attachment is moved laterally relative to said housing of the reservoir assembly.
The accompanying drawings incorporated in and forming a part of the specification embodies several aspects of the present invention and, together with the description, serves to explain the principles of the invention. In the drawings:
The detailed description explains embodiments of the invention, together with advantages and features, by way of example with reference to the drawings.
Referring now to
The food processing system 20 includes a base 22 having a body or housing 24 within which a motorized unit (not shown) and at least one controller (not shown) are located. The base 22 includes at least one rotary component, such as a drive coupler 26 (see
One or more attachments 30 varying in size and/or functionality may be configured for use with the base 22. An example of an attachment is illustrated in more detail in
The rotatable blade assembly 34 is receivable within or about the base 22 of the food processing system 20. A driven coupler 35 (see
In embodiments where the attachment 30 includes an inverted container 32, the attachment 30 may include one or more contact members 46, such as tabs for example, positioned about the periphery of the attachment 30. Although four contact members 46 are generally illustrated in the FIGS., any number of contact members 46 is within the scope of the disclosure. In embodiments where the attachment 30 includes an inverted container 32 and a blade assembly 34, the contact members 46 may extend outwardly from the container 32, the blade assembly 34, or both.
The contact members 46 of the attachment 30 are configured to cooperate with a mounting area 48 of the base 22 to couple the attachment 30 to the base 22. As shown, the mounting area 48 includes one or more receiving slots 50 within which each of the plurality of contact members 46 of the attachment 30 is receivable. The attachment 30 may be configured to slidably connect to the base 22 of the food processing system 20. Alternatively or in addition, the attachment 30 may be configured to rotatably connect to the base 22 such that the attachment 30 is locked relative to the base 22. However, it should be understood that any suitable mechanism for coupling the attachment to the base 22 is within the scope of the disclosure.
With reference now to
In an embodiment, the container 32 is a vacuum container suitable for performing a vacuum operation of the food processing system 20. In such embodiments, best shown in
The container 32 additionally includes a vacuum passage or conduit 72 configured to fluidly connect the vacuum mechanism 54 and the vacuum chamber 70 when the attachment 30 is coupled to the base 22. The vacuum passage 72 may have a generally linear configuration as shown in
The vacuum attachment 30 includes a vacuum sealing assembly 80 located within the vacuum chamber 70, at an interface between the processing chamber 42 and the vacuum chamber 70. As best shown in
The vacuum sealing assembly 80 includes an umbrella valve 82 having a valve stem 84 extending through a primary opening 86 formed in the interior wall 60, and a flange 88 extending generally perpendicular to the valve stem 84. As shown, one or more dimensions of the distal end 90 of the valve stem 84 are greater than the primary opening 86 to restrict movement of the umbrella valve 82 relative to the container 32. Via the engagement between the valve stem 84 and the primary opening 86, a flow of fluid or food particles from the interior processing chamber 42 of the container 32 through the primary opening 86 is restricted. The flange 88 of the umbrella valve 82 is sized such that a portion of the flange 88, such as near the periphery of the flange 88 for example, is in overlapping arrangement with the at least one secondary opening 92 formed in the interior wall 60. Accordingly, under normal conditions, the flange 88 seals the at least one secondary opening 92 to prevent a flow of fluid and/or food particles there through.
During a vacuum operation, when either attachment is mounted to the base 22 and the vacuum passage 72 is operably coupled to the vacuum system 52, the vacuum mechanism 54 generates a negative pressure which is applied to the exposed surface of the umbrella valve 82. The negative pressure generated will cause the peripheral portion of the flange 88 to separate from the secondary opening 92 just enough to allow air within the processing chamber 42 to be drawn there through. As soon as operation of the vacuum mechanism 54 ceases and the negative pressure is removed, the peripheral portion of the flange 88 will bias back into its original position to seal the secondary opening 92. This bias may be the result of the resilient material, such as silicone for example, from which the umbrella valve 82 is formed. Alternatively, a biasing mechanism may be used to facilitate movement of the flange 88 back into a sealing position. A vacuum operation may be performed after food has been disposed within the processing chamber 42 but prior to performing a food processing operation. In another embodiment, a vacuum operation is initiated to draw a vacuum within the processing chamber 42 after performance of a food processing operation has been performed. Forming a vacuum after a blending operation may be used to increase the shelf life or storage of the food products within the attachment 30.
The vacuum attachment 30 additionally includes a release mechanism 94 operable to vent the processing chamber 42 of the container 32 to ambient, thereby breaking the vacuum formed therein. The release mechanism 94 is similarly mounted at a location of the attachment 30 that is easily accessible by a user. As shown, the release mechanism 94 is located remotely from and is not connected to the vacuum sealing assembly 80. However, it should be understood that embodiments where the release mechanism 94 is directly or indirectly coupled to the vacuum sealing assembly 80 are also within the scope of the disclosure. With respect to the inverted vacuum jar, the release mechanism 94 is mounted at the exposed second end 38 of the container 32.
In the illustrated, non-limiting embodiment, the release mechanism 94 includes a connector 96 having a sealing member 98. The release mechanism 49 additionally includes an actuator 100 pivotally coupled to the connector 96 via a pin 102 defining a pivot axis of the actuator 100. In an embodiment, a camming lever 104 extends from the connector 96 toward the actuator 100. When the release mechanism 94 is in an unactuated state, the sealing member 98 is engaged with an adjacent opening 106 fluidly connected to the processing chamber 42. A biasing member 108, such as a coil spring for example, may be coupled to the connector 96 to bias the sealing member 98 into engagement with the opening 106 to form an air tight and liquid tight seal. To actuate the release mechanism 94, the actuator 100 is pivoted about the axis of pin 102. This movement overcomes the bias of the biasing member 108 and also applies a force to the camming lever 104 of the connector 96, thereby causing the connector 96 and sealing member 98 to move vertically, and out of engagement with the opening 106. Upon removal of the force from the actuator 100, the biasing member 108 will bias the release mechanism 94 back into its original position, thereby sealing the opening 106.
After a vacuum has been generated within the processing chamber 42 of the container 32, it is difficult, if not impossible to remove the blade assembly 34 and access the food product within the processing chamber 42 as a result of the forces acting thereon. Accordingly, a user should first break the vacuum within the container 32 by operating the release mechanism 94 prior to accessing the contents within the processing chamber 42 of the container 32.
A container 32 having a vacuum sealing assembly 80 as illustrated and described herein when used in conjunction with a vacuum mechanism 54 prior to a food processing operation may provide a food product having increased vitamin retention, specifically vitamin C. Exposure to oxygen within during the blending process may cause the ingredients within the container 32 to degrade. By removing the oxygen from the container 32, the overall degradation of the nutritional properties of the ingredients being processes is reduced. The vacuum attachment 30 illustrated and described herein is intended as an example only, and it should be understood than any vacuum attachment suitable for use with the base 22 is within the scope of the disclosure.
With reference now to
Referring now to
In the illustrated, non-limiting embodiment of
The reservoir assembly 110 additionally includes a fluid flow path connecting the vacuum mechanism 54 to the inlet pipe 116 (best shown in
If the processing chamber 42 of a container 32 attached to the base 22 is filled beyond a predetermined threshold, a portion of the contents of the processing chamber 42 may be drawn into the vacuum passage 72 during a vacuum operation. Because of the small size of the secondary opening 92 associated with the vacuum sealing assembly 80, the food drawn into the vacuum passage 72 is typically a liquid, or a slurry including processed food particles. To prevent this food from entering into the vacuum mechanism 54, the reservoir assembly 110 is arranged between the vacuum passage 72 of the container 32 and the vacuum mechanism 54.
An example of the path of the air drawn from the processing chamber 42 into the vacuum mechanism 54 is illustrated in
During vacuum operations where liquid or food particles are entrained within the air flow provided to the reservoir assembly 110, the particulate (i.e. liquid and food particles) will accumulate within the hollow interior 114 or reservoir, adjacent the lower surface 124 of the housing 112. The reservoir assembly 110 is configured to collect food contents while still allowing air necessary to operate the vacuum mechanism 54 to flow there through. The weight of the particulate prevents the particulate from moving with the air flow into the inlet 136 of the fluid flow path arranged near the upper surface 126 of the hollow interior 114. Accordingly, over time, the particulate disposed within the hollow interior 114 will accumulate.
During operation of the vacuum system 52, in a dry state, such as when the reservoir is absent any liquid, the weight of the float valve 130 will maintain the float valve in a first position, generally near the bottom 124 of the reservoir 114. During operation of the vacuum system in a wet state, such as when liquid is introduced into the reservoir, the float valve 130 will move within the housing 112 between the first position and the second position. In an embodiment, the position of the float valve 130 is directly dependent on the volume of particulate within the hollow interior 114. For example, in an embodiment, the liquid introduced into the reservoir 114 forms a meniscus with the internal walls of the housing 112, creating a pressure adjacent the float valve 130, such as within the float channel for example. The meniscus and pressure may cause the float valve 130 to move from the first position to the second position, to seal the inlet 136. Alternatively or in addition, as liquid enters the reservoir 114, the inlet area at the inlet 136 is reduced. This reduction in inlet area causes an increase in air velocity that may be sufficient to move the float valve 130 within the housing 112.
When the liquid and/or food particulate accumulated within the hollow interior 114 reaches a maximum allowable volume, the float valve 130 is located at the second position to block the inlet of the fluid flow path to the vacuum mechanism 54. In an embodiment, when the float valve 130 is in the second position, a mating surface 138 of the float valve 130 sealingly engages with a corresponding portion of the one or more conduits 134, such as a gasket or seal 140, thereby blocking the inlet 136 to the fluid flow path defined by the conduits 134. As a result, no air will be able to flow to the vacuum mechanism 54.
When an airflow to the vacuum mechanism 54 falls below a minimum threshold, such as when the float valve 130 is in the second position, the vacuum mechanism 54 may be configured to automatically shut off to avoid burnout. In an embodiment, the vacuum system 52 includes a sensor S separate from the vacuum mechanism 54 for detecting when the float valve 130 is in the second position, and/or when no air is provided to the vacuum mechanism 54 during operation of the vacuum mechanism 54. Upon determining that either condition is present, the controller C, operably coupled to the sensor and the vacuum mechanism 54 may de-energize the vacuum mechanism 54, such as by opening a switch formed in a power circuit thereof.
With reference now to
During operation of the vacuum system 52, in a dry state, the terminals extending into the reservoir are not electrically coupled or connected. During operation of the vacuum system in a wet state, however, liquid and/or particulate is gradually introduced into the reservoir 214. Once the liquid within the reservoir 214 reaches or exceeds a maximum allowable volume or threshold, the liquid will electrically connect two or more of the plurality of terminals 240. In an embodiment, the liquid exceeds the maximum allowable threshold once the two or more terminals 240 are submerged within the liquid. In response to the completion of the electrical circuit between the terminals 240, the controller C, operably coupled to the terminals 240 and the vacuum mechanism 54 may de-energize the vacuum mechanism 54, such as by opening a switch formed in a power circuit thereof.
With reference now to
As a force is applied to the at least one angled surface 160 of the protrusion 158, such as by lateral movement of an attachment 30, the force will oppose the biasing force of the biasing mechanism 162 causing the body 154, and therefore the inlet pipe 116 to retract into the compartment 152 of the housing 112. In this retracted position, the inlet pipe 116 may be located vertically beneath the upper surface 120 of the housing 112. Once the attachment 30 is properly positioned relative to the base 22 and the reservoir assembly 110, the force is removed from the body 154. The biasing force of the biasing mechanism 162 will translate the body 154 upward and the inlet pipe 116 into sealing engagement with the end 74 of the vacuum passage 72 formed in the container 32. In an alternative embodiment, illustrated in
In another embodiment, the movement mechanism 150 includes a body 154 connected to a portion of the inlet pipe 116 and a lever 166 operably coupled to the body 154. In the illustrated, non-limiting embodiment of
A user can separate the reservoir assembly from the base 22 of the food processing system 20, to empty the contents of the hollow interior 114 and/or clean the reservoir assembly 110. Inclusion of the reservoir assembly 110 within the vacuum system 52, protects the vacuum mechanism 54 from both inadequate air supply and contamination from food.
All references, including publications, patent applications, and patents cited herein are hereby incorporated by reference to the same extent as if each reference were individually and specifically indicated to be incorporated by reference and were set forth in its entirety herein.
The use of the terms “a” and “an” and “the” and similar referents in the context of describing the invention (especially in the context of the following claims) is to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. The terms “comprising,” “having,” “including,” and “containing” are to be construed as open-ended terms (i.e., meaning “including, but not limited to,”) unless otherwise noted. Recitation of ranges of values herein are merely intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, and each separate value is incorporated into the specification as if it were individually recited herein. All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g., “such as”) provided herein, is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention unless otherwise claimed. No language in the specification should be construed as indicating any non-claimed element as essential to the practice of the invention.
Exemplary embodiments of this invention are described herein, including the best mode known to the inventors for carrying out the invention. Variations of those embodiments may become apparent to those of ordinary skill in the art upon reading the foregoing description. The inventors expect skilled artisans to employ such variations as appropriate, and the inventors intend for the invention to be practiced otherwise than as specifically described herein. Accordingly, this invention includes all modifications and equivalents of the subject matter recited in the claims appended hereto as permitted by applicable law. Moreover, any combination of the above-described elements in all possible variations thereof is encompassed by the invention unless otherwise indicated herein or otherwise clearly contradicted by context.
This application is claims priority to U.S. Provisional Application Ser. No. 62/816,004, filed Mar. 8, 2019, the entire contents of which are incorporated herein by reference.
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