Utensil sorting apparatus

Information

  • Patent Grant
  • 6460707
  • Patent Number
    6,460,707
  • Date Filed
    Tuesday, April 3, 2001
    23 years ago
  • Date Issued
    Tuesday, October 8, 2002
    22 years ago
  • Inventors
  • Examiners
    • Nguyen; Tuan N.
    Agents
    • Thorpe North & Western
Abstract
A utensil sorting apparatus simultaneously sorts and/or orients a plurality of utensils, such as spoons, forks, and knives. A movable conveyor is movably disposed over a template having a plurality of first aperture sized to receive therethrough only the spoons. The conveyor sequentially moves the utensils through locations, including a receiving location, and a sorting location.
Description




BACKGROUND OF THE INVENTION




1. The Field of the Invention




The present invention relates generally to an apparatus for sorting utensils or silverware, such as spoons, forks and knives. More particularly, the present invention relates to a utensil sorting apparatus which continuously receives utensils, simultaneously sorts a plurality of the utensils, and simultaneously orients the utensils as they are sorted.




2. The Background Art




Large food preparation entities or eating establishments, such as restaurants, hotels, hospitals, cafeterias, etc., may serve hundreds to thousands of people per day or per meal. The large number of people served results in thousands of utensils or silverware which must be washed, sorted, and reoriented prior to reuse. These washing and sorting operations are typically performed by unskilled labor who collect the utensils, wash the utensils using either manual or large capacity washing machines, and then sort and orient the utensils. Because sorting the utensils requires the unskilled laborer to touch and handle the utensils, they must typically be rewashed to satisfy health and sanitation issues. One disadvantage with this system is the time and cost involved in unskilled labor manually sorting and orienting the utensils.




It is desirable to provide a system and/or apparatus for sorting and orienting utensils which is efficient and capable of rapidly sorting the utensils. It is also desirable that such a system or apparatus be accurate, simple, and sanitary.




A few different types of devices have been developed for sorting utensils. For example, U.S. Pat. No. 3,625,356 issued Dec. 7, 1979, to Jackson, discloses a device in which utensils pass through a chute with a twisted shape so that the utensils are caused to pivot about their lower end and swing outward towards a set of different height, gauged bars. The gauged bars are positioned at heights to allow shorter utensils to pass under the gauge bars while the higher gauge bars prevent longer utensils from passing underneath.




As another example, U.S. Pat. No. 3,389,790 issued Jun. 25, 1968 to Braunheim et al., discloses a device in which the utensils are disposed between partitions on the exterior of an angled drum. The drum rotates causing the utensils to rotate past a shield disposed about the lower portion of the drum. The shield is provided with three differently sized apertures for receiving three differently sized utensils as they are rotated past the apertures by the drum.




As another example, U.S. Pat. No. 3,545,613 issued Dec. 8, 1970, to Nystuen, discloses a device in which utensils are received between partitions on a conveyer belt. The conveyer belt moves the utensils past a plurality of different sized openings which are each sized to receive one of the utensils.




As another example, U.S. Pat. No. 3,389,711 issued Jun. 25, 1968, to Slayton, discloses a device with a plurality of open-ended pockets or tapered tubes which are rotated about a horizontal axis. The device has a first row of tapered tubes with an open bottom end sized to pass therethrough the narrowest utensils. As the tubes rotate about the horizontal axis, a utensil is disposed in each tube such that the narrowest utensil passes through the bottom of the tube while wider utensils will be trapped within the tube. As the tube rotates upwardly, it turns upside down such that wider utensils will fall out and be guided toward a next row of tapered tubes with wider openings.




One disadvantage with these types of devices is that they are designed to sort the utensils only one at a time. Thus, the utensils must be separated and fed into the devices one at a time, so that each utensil is disposed within a separate pocket or separate tube. In addition, the utensils are presented to a gauging opening one at a time.




Another disadvantage with these devices is that they only sort the utensils. Orientation of the utensils is performed as a separate step after sorting, if at all. Thus, after being sorted, some of the devices direct the utensils to other devices which are intended to orient the utensils in a common orientation.




Therefore, it would be advantageous to develop a method and/or apparatus for sorting a plurality of different utensils, which is simple, efficient, accurate, and sanitary. It would also be advantageous to develop such a method and/or apparatus which is capable of sorting a plurality of different utensils simultaneously. It would also be advantageous to develop such a method and/or apparatus which simultaneously sorts and orients the utensils.




OBJECTS AND SUMMARY OF THE INVENTION




It is therefore an object of the present invention to provide a method and/or apparatus for sorting a plurality of different utensils which is simple, efficient, accurate, and sanitary.




It is another object of the present invention to provide such a method and/or apparatus for sorting multiple utensils simultaneously.




It is yet another object of the present invention to provide a method and/or apparatus which sorts and orients the utensils simultaneously.




The invention provides a utensil sorting apparatus configured to simultaneously sort and/or orient a plurality of utensils. The plurality of utensils may include first utensils, such as spoons, second utensils, such as forks, and third utensils such as knives. The utensils preferably have different lengths.




The utensil sorting apparatus includes a template having a plurality of first apertures sized to receive therethrough only the first utensils. A movable conveyor is movably disposed across the template and the first apertures, and is configured to move the first and second utensils across the first apertures in the template. The movable conveyor also is configured to move sequentially through at least two locations, including a receiving location, and a first sorting location. In the receiving location, the movable conveyor is configured to receive at least one of the first and second utensils. In the first sorting location, the movable conveyor is configured to pass any first utensil through the first apertures in the template.




In accordance with another aspect of the present invention, the template further includes a plurality of second apertures sized to receive therethrough only the second utensils. The conveyor is further configured to move through a second sorting location to pass any second utensil through the second apertures in the template. The template further can include a plurality of third apertures sized to receive therethrough only third utensils. Again, the conveyor is further configured to move through a third sorting location to pass any third utensil through the third apertures in the template.




In accordance with another aspect of the present invention, a plurality of bars are each disposed laterally across one of the first apertures in the template at a location configured to correspond to midpoints of the respective first utensils. Thus, the centers of gravity of the first utensils are disposed on either side of the respective bar as the first utensils are moved across the first apertures in the template, tending to cause the first utensils to pass through the first apertures in the template on a same side of the respective bar as the center of gravity, and thus orienting the first utensils.




In accordance with another aspect of the present invention, the template is a frusto-conical interior core. The conveyor is a frusto-conical exterior shell, rotatably disposed on the core.




A method for sorting a plurality of utensils includes simultaneously receiving a plurality of utensils on the movable conveyor. Each of the plurality of utensils is simultaneously moved past one of a plurality of apertures in a template by moving the conveyor. Any remaining second utensils are simultaneously moved past the plurality of apertures.




In accordance with another aspect of the present invention, any remaining second utensils are simultaneously moved past one of a plurality of second apertures in the template by moving the conveyor. Any remaining third utensils are simultaneously moved past one of a plurality of third apertures in the template by moving the conveyor.




In accordance with another aspect of the present invention, the first utensils are simultaneously oriented while the first utensils pass through the apertures.




Additional objects and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by the practice of the invention without undue experimentation. The objects and advantages of the invention may be realized and obtained by means of the instruments and combinations particularly pointed out in the appended claims.











BRIEF DESCRIPTION OF THE DRAWINGS




The above and other objects, features and advantages of the invention will become apparent from a consideration of the subsequent detailed description presented in connection with the accompanying drawings in which:





FIG. 1

is a perspective schematic view of a preferred embodiment of a utensil sorting apparatus in accordance with the present invention;





FIG. 2

is a side view of a preferred embodiment of utensils of the present invention;





FIG. 3

is a top view of the preferred embodiment of the utensil sorting apparatus in accordance with the present invention;





FIG. 4

is an exploded view of a preferred embodiment of a first stage of the utensil sorting apparatus in accordance with the present invention;





FIG. 5

is a partial side view of the preferred embodiment of the first stage of the utensil sorting apparatus in accordance with the present invention;





FIG. 6

is a partial cross-sectional view of the preferred embodiment of the first stage of the utensil sorting apparatus in accordance with the present invention;





FIG. 7

is a partial cross-sectional view of the preferred embodiment of the first stage of the utensil sorting apparatus in accordance with the present invention;





FIG. 8

is a perspective view of an alternative embodiment of a utensil sorting apparatus in accordance with the present invention;





FIG. 9

is a top view of an alternative embodiment of a utensil sorting apparatus in accordance with the present invention;





FIG. 10

is a perspective view of another utensil sorting apparatus in accordance with the present invention; and





FIG. 11

is a perspective view of a template of the utensil sorting apparatus of FIG.


10


.











DETAILED DESCRIPTION




For the purposes of promoting an understanding of the principles in accordance with the invention, reference will now be made to the embodiments illustrated in the drawings and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended. Any alterations and further modifications of the inventive features illustrated herein, and any additional applications of the principles of the invention as illustrated herein, which would normally occur to one skilled in the relevant art and having possession of this disclosure, are to be considered within the scope of the invention claimed.




As illustrated in

FIG. 1

, an apparatus, indicated generally at


10


, in accordance with the present invention is shown for sorting and/or orienting a plurality of utensils, indicated generally at


14


. Referring to

FIG. 2

, the utensils


14


may include: a first plurality of utensils or spoons


20


; a different second plurality of utensils or forks


22


; and a different third plurality of utensils or knives


24


. The first utensils or spoons


20


may have a first, shorter length l


S


; the second utensils or forks


22


may have a second, intermediate length l


F


; and the third utensils or knives may have a third, longer length l


K


. Although the present invention will be described with respect to knives, forks, and spoons with respective longer, intermediate, and shorter lengths, it will of course be understood that the apparatus


10


of the present invention may be configured to sort and/or orient any number of different utensils or instruments with varying dimensions.




Referring again to

FIG. 1

, the apparatus


10


includes: a first stage, indicated generally at


30


, to separate the spoons


20


from the forks


22


and knives


24


; and a separate, second stage, indicated generally at


32


, to separate the forks


22


from the knives


24


. The utensils


14


may be cleaned and separate prior to being sorted by the present apparatus


10


. In accordance with one aspect of the present invention, the apparatus


10


advantageously sorts the plurality of utensils


14


simultaneously, rather than sorting individual utensils one at a time. The plurality of utensils


14


are received by the apparatus


10


as indicated by arrow


36


, such as by chutes (not shown) or other means.




Referring to

FIGS. 1

,


3


and


4


, the first stage


30


of the apparatus


10


includes a first template


40


having a plurality of first apertures


42


. The first apertures


42


are sized and configured to receive therethrough only the spoons


20


. Thus, the first apertures


42


may have a height or length which is slightly larger than the length l


S


of the spoons


20


so that the spoons


20


may pass through the first apertures


42


. The first template


40


is configured to receive the utensils


14


thereon. Thus, the first template


40


preferably is angled or has an angled inclined surface. The first template


40


preferably and advantageously has a frusto-conical shape forming a frusto-conical interior core. The conical shape of the first template


40


advantageously provides an angled surface to receive the utensils


14


thereon. In addition, the conical shape of the first template


40


advantageously provides a narrow upper end where the utensils


14


can be received from a common area, as shown in FIG.


1


. The angled surface of the first template


40


also allows utensils


14


to slide downwardly under the force of gravity, as will be discussed in greater detail below.




The first stage


30


also includes a first movable conveyer


46


movably disposed on the first template


40


. The first conveyer


46


moves the utensils


14


across the template


40


and across the apertures. The first conveyer


46


preferably includes a plurality of partitions or vanes


50


which define a plurality of pockets


54


between the partitions to receive the utensils


14


. The pockets


54


have openings


58


disposed adjacent to, or proximal, the first template


40


. Thus, as the conveyer


46


moves on the template


40


, the partitions


50


, pockets


54


, and openings


58


are also moved across the template


40


and the apertures


42


.




The first conveyer


46


preferably and advantageously has a frusto-conical shape forming a frusto-conical exterior shell movably disposed on the frusto-conical interior core or template. In addition, the first conveyer


46


is rotatably disposed on the template


40


, as indicated by arrow


62


.




Referring to

FIGS. 1 and 3

, the utensils


14


are received at the upper ends of the first stage


30


, or template


40


, and conveyer


46


. The utensils


14


slide under the force of gravity down the conveyer


46


and template


40


so that they are received in the open upper ends of the pockets


54


. The utensils


14


continue to slide until they reach the bottom of the pockets


54


. The conveyer


46


rotates


62


with the partitions


50


sliding the utensils


14


across the template


40


in a circular direction. The partitions


50


of the conveyer


46


continue to move the utensils


14


across the apertures


42


. Because the spoons


20


are the same size or slightly smaller than the size of the openings


42


, the spoons


20


pass through the openings


58


in the pockets


54


and through the apertures


42


in the template


40


. The spoons


20


are gathered as they pass through the apertures


42


and may be directed towards a common spoon receptacle


66


by chutes


68


, tubes or the like. Thus, the spoons


20


are separated from the forks


22


and knives


24


. Because the forks


22


and knives


24


are longer than the apertures


42


, they continue to pass over the apertures


42


as moved by the partitions


50


. The forks


22


and knives


24


then pass out of the pockets


54


and are gathered, such as by chutes


72


, and are directed to the second stage


32


. The conveyer


46


sequentially moves the pockets


54


, and thus any utensils


14


contained therein, through at least three different locations. The first location is a receiving location


76


in which one or more utensils are received in the pockets


54


. In the receiving location


76


, the pocket


54




a


is disposed over the template


40


adjacent an aperture


42


. The second location is a sorting and/or orienting location


80


in which any spoon


20


passes through the aperture


42


in the template


40


. In addition, the spoon


20


preferably and advantageously is oriented simultaneously as it passes through the aperture


42


, as discussed in greater detail below. In the sorting and orienting location


80


, a pocket


54




b


is disposed over an aperture


42


. The third location is a discharge location


84


in which any remaining utensil or fork


22


or knife


24


is discharged or removed from a pocket


54




c


. In the discharge location


84


, the pocket


54




c


is disposed adjacent an opening opposite the receiving location


76


.




Referring again to

FIGS. 1

,


3


and


4


, the first stage


30


or template


40


includes a plurality of flanges


88


disposed on and extending outwardly from the template


40


. Each flange


88


is disposed adjacent a lower side of the aperture


42


and at a lower end of the partitions


50


. Thus, the flanges


88


act as the bottom of the pockets


54


. As utensils


14


enter the pockets


54


and slide down the template


40


, they are stopped by the flange


88


. Thus, in the first location


76


, the pocket


54




a


is defined by the partitions


50


, the template


40


, and the flange


88


. As the conveyer


46


rotates, the partitions


50


slide the utensils


14


along the template


40


and the flange


88


. Each flange


88


extends laterally the length of the first and second locations


76


and


80


, but leaves open the third location


84


. Thus, in the third location


84


, the utensils may slide out of the pocket


54


c under the force of gravity.




Referring to

FIG. 1

, the second stage


32


includes a second template


92


and second conveyer movably disposed on the second template


92


. The second template


92


has a plurality of second apertures


100


which are sized and configured to receive therethrough only the forks


22


. Thus, the second apertures


100


have a length of height which is the same as or slightly longer than the length l


F


of the forks


22


.




The second stage


32


is similar in many respects to the third stage


30


. The second conveyer


96


has a plurality of partitions


104


creating a plurality of pockets


106


with openings


108


. The second template


92


and second conveyer


96


also may have a frusto-conical shapes defining a frusto-conical core and a frusto-conical interior shell. The second conveyer


96


is rotatably disposed on the second template


92


, as indicated by arrow


110


. Thus, the second conveyer


96


rotates, moving the partitions


104


, pockets


106


and openings


108


across the second template


92


and across the second apertures


100


.




The second conveyer


96


sequentially moves the pockets


106


and thus the utensils through three different locations, including a first location


112


, or receiving location, where the forks


22


and knives


24


are received from chute


72


extending from the first stage


30


. In the first location, the pocket


106




a


is disposed adjacent an aperture


100


. In a second location


114


, or receiving and orienting location, a pocket


106




b


is disposed over an aperture


100


. Any fork


22


disposed in the pocket


106


passes through the aperture


100


and is collected, such as by chutes


116


extending to a fork receptacle


117


, tubes, or the like. In the third location, or discharge location


118


, any knives


24


remaining in the pocket


106




c


are discharged from the pocket and collected, such as by chutes


120


extending to a knife receptacle


121


. The second stage


32


also has a plurality of flanges


122


extending from the second template


92


, and extending across the first and second locations


112


and


114


, but leaving the third location


118


open, such that knives


24


may slide out of the pocket


106




c


and be collected by the chute


120


.




The first and second stages


30


and


32


may be vertically oriented with the second stage


32


located below the first stage


30


. Thus, forks


22


and knives


24


leaving the first stage


30


may proceed through the chute


72


to the second stage


32


under the force of gravity.




As indicated above, the first stage


30


advantageously is configured to receive a plurality of utensils


14


simultaneously. In addition, the first template


40


advantageously has a plurality of first openings


42


so that the first stage


30


advantageously may sort the plurality of utensils simultaneously. The ability to simultaneously sort the plurality of utensils


14


provides a distinct advantage over prior art devices which are configured to sort utensils individually, or one at a time. In addition, the first stage


30


advantageously may continue to receive a plurality of utensils


14


. For example, a first stage


30


may receive a first plurality of utensils


14


into the plurality of pockets


54




a


at a plurality of receiving locations


76


. As the first conveyer


46


rotates


62


, the first plurality of utensils


14


simultaneously are rotated from the first location


76


to the second or sorting location


80


, where the first plurality of utensils


14


are simultaneously sorted. It will be appreciated that a second plurality of utensils may then be received in the pockets


54


at the plurality of receiving locations


76


. Similarly, the second stage


32


simultaneously sorts a plurality of forks


22


and knives


24


. The plurality of forks and knives


22


and


24


are received in a plurality of pockets


106




a


at the first or receiving location


112


, the second conveyer


96


rotates


110


to simultaneously move the forks and knives


22


and


24


to the second or sorting location


114


, where the forks


22


and knives


24


are simultaneously sorted. In addition, the second stage


32


can continuously receive a second plurality of forks and knives into the first receiving locations


112


.




As indicated above, the utensils


14


may be oriented simultaneously as they are sorted, or as they pass through an aperture in a template. It will be appreciated that the utensils may be received by the apparatus


10


, or first and second stages


30


and


32


in any orientation, such as pointing downward or pointing upward. The first stage


30


advantageously orients the spoons


20


simultaneously as they pass through the first aperture


42


. Similarly, the second stage


32


simultaneously orients the forks


22


as they pass through the second apertures


100


.




Referring again to

FIG. 2

, each utensil


14


has a center or midpoint, represented by a dot, and a center of gravity, represented by an x. It will be noted that the centers of gravity x of the utensils


14


do not coincide with the midpoints.




Referring to

FIG. 5

, a plurality of first bars


130


are each disposed laterally across one of the first apertures


42


. The first bar


130


is located to correspond to the midpoint


126




a


of the spoon


20


. Thus, the first bar


130


is disposed across the opening


42


generally at a midpoint of the length of the opening


42


. Because the center of gravity


128




a


of the spoon


20


does not correspond with the midpoint


126




a


, the center of gravity


128




a


of the spoon


20


will be disposed on one side of the bar


130


, or above or below the bar


130


, as the spoon


20


is moved across the opening


42


by the conveyer


46


. Because the template


40


and conveyer


36


are disposed at an angle, the spoon


20


is also disposed at an angle. Because the bar


130


is located at the midpoint


126




a


of the spoon


20


, rather than the center of gravity


128




a


, the spoon


20


will not balance on the bar


130


, but tend to pass through the aperture


42


on a same side of the bar


130


as the center of gravity


128




a.






Referring to

FIG. 6

, the spoon


20


is disposed upright, or to face or point upwardly. Thus, as the spoon


20


is moved across the opening


42


, the center of gravity


128




a


is located above, and to one side of, the bar


130


. Thus, the weight of the spoon


20


will tend to cause the spoon


20


to pass through the opening


42


above the bar


130


, so that the spoon


20


pivots or rotates about the bar


130


, so that the spoon


20


now points downwardly, as indicated by the dash lines. Referring to

FIG. 7

, if the spoon


20


is oriented to face or point downwardly, then the center of gravity


128




a


will be below, and to the other side of, the bar


130


. Thus, as the spoon


20


passes over the aperture


42


, the weight of the spoon


20


will tend to cause the spoon


20


to pass through the aperture


42


below the bar


130


, thus causing the spoon


20


to pivot around the bar


130


so that the spoon is pointing downwardly, as shown by the dashed lines. Thus, regardless of how the spoon


20


is oriented as it passes over the aperture


42


, the bar


130


and the center of gravity


128




a


of the spoon


20


cause the spoon


20


to pass through the aperture


42


, and around the bar


130


, in such a way that the spoon


20


will always be oriented to point or face downwardly after passing through the aperture


42


. It will be appreciated that the above description with respect to the spoon applies equally to the fork


22


and knife


24


.




Referring to

FIG. 1

, the second stage


32


similarly has a plurality of second bars


136


each disposed laterally across one of the second apertures


100


at a location configured to correspond to the midpoints


126




b


of the forks


22


. Similarly, as the forks


22


are moved across the apertures


100


, the centers of gravity


128




b


of the forks


22


are disposed above or below the second bar


136


, tending to cause the forks


22


to pass through the aperture


100


above or below the bar


136


depending on the location of the center of gravity


128




b


. Thus, like the spoons


20


, the forks


22


are oriented as they pass through the aperture


100


to face or point downwardly.




It will of course be understood that the knives


24


may be similarly passed across an aperture with a bar in order to orient the knives, similar to that described above for the spoons and forks.




Therefore, as indicated above, the spoons


20


and forks


22


are oriented simultaneously as they pass through their respective apertures so that the spoons and forks not only are separated from the plurality of utensils


14


, but oriented to have a common orientation. Utilizing the apparatus


10


of the present invention to both sort and orient the utensils


14


provides a significant advantage over prior art devices, which use one structure or mechanism for sorting the utensils, and another structure or mechanism for then orienting the utensils, thus requiring additional space and structure.




It is of course understood that additional stages may be provided depending on the number of items to sort. For example, additional stages could be added to sort or separate soup spoons or salad forks, etc.




Referring now to

FIGS. 8 and 9

, an alternative embodiment indicated generally at


170


is shown for sorting and/or orienting the plurality of utensils


14


. The apparatus


170


is similar in many respects to the apparatus


10


described above. The apparatus


170


includes a template


172


and a conveyer


174


movably disposed on the template


172


. The template


172


, however, has a plurality of first apertures


176


sized to receive therethrough only the spoons


20


, and a plurality of second apertures


178


sized and configured to receive therethrough only the forks


22


. The first and second apertures


176


and


178


may be disposed adjacent one another. Thus, as the conveyer


172


rotates, indicated by arrow


180


, the conveyer


178


moves the partitions


182


, pockets


184


and utensils


14


sequentially through four different locations. In the first or receiving location, a pocket


184


is located adjacent the first aperture


176


to receive at least one of the plurality of utensils


14


. The second location is a first sorting location


188


in which the pocket


184


and utensils


14


are disposed over the first aperture


176


to separate the spoons


20


from the remaining utensils


14


. The third location is a second sorting location


190


in which the pocket


184


is disposed over the second aperture


178


such that any fork


22


passes through the aperture


178


. The fourth location is a discharge location


192


in which any remaining knife


24


is discharged from the pocket


184


. As described above, the apparatus


170


may have a plurality of flanges


196


disposed on the template


172


and extending across the first, second and third locations


186


,


188


, and


190


, but leaving the fourth location


192


open for the discharging of knives.




As described above, the apparatus


170


advantageously receives a plurality of utensils and continuously sorts the plurality of utensils


14


. In addition, the apparatus


170


separates both the spoons and the forks with single template


172


and conveyer


174


, to reduce space.




It is of course understood that the apparatus


170


may be provided with collection chutes to collect the spoons, forks and knives as described above. In addition, the template


172


may be provided with a plurality of third apertures sized to receive the knives therethrough, which is similar to the first and second apertures


176


and


178


.




Furthermore, a plurality of first and second bars


200


and


202


may be disposed across first and second apertures


176


and


178


as described above.




Referring now to

FIGS. 10 and 11

, an alternative embodiment indicated generally at


210


is shown for sorting and/or orienting the plurality of utensils


14


. The apparatus


210


is similar in many respects to those described above. The apparatus


210


includes a template


214


and a conveyer


218


movably disposed on the template


214


. The template


214


can have a plurality of apertures, including a plurality of first, second and third apertures. The first apertures


222


can be sized and configured to receive therethrough only the spoons


20


. The second apertures


224


can be sized and configured to receive therethrough only the forks


22


. The third apertures


226


can be sized and configured to receive therethrough only the knives


24


.




As the conveyer


218


rotates, the conveyer


218


moves pockets


230


and the utensils


14


sequentially through four different locations. In the first or receiving location, the pocket


230


is located adjacent the first aperture


222


to receive at least one of the plurality of utensils


14


. The second location is a first sorting location


234


in which the pocket


230


and utensils


14


are disposed over the first aperture


222


to separate the spoons


20


from the remaining utensils


14


. The third location is a second sorting location


236


in which the pocket


230


is disposed over the second aperture


224


such that any fork


22


passes through the aperture


224


. The fourth location is a third sorting location


238


in which the pocket


230


is disposed over the third aperture


226


such that any knife


24


passes through the third aperture


226


.




As described above, the apparatus


210


advantageously receives a plurality of utensils


14


, and continuously sorts the plurality of utensils


14


. In addition, the apparatus


210


separates the spoons, forks, and knives with a single template


214


and conveyer


218


, to reduce space. The apparatus


210


also can include a plurality of chutes or compartments


240


disposed under each aperture to receive the utensils.




A method for sorting a plurality of utensils


14


using the apparatuses described above includes simultaneously receiving or providing the plurality of utensils


14


to a movable conveyer. The utensils may be received or provided to a first plurality of pockets formed in the movable conveyer. The plurality of utensils


14


are simultaneously moved past or across the apertures in the template by moving the conveyer. Simultaneously sorting a plurality of utensils provides a distinct advantage over prior art devices which individually provide and sort a utensil. Simultaneously sorting a plurality of utensils is faster and more efficient. Furthermore, after the conveyer has moved the first plurality of utensils over the apertures, a second plurality of utensils may be received simultaneously onto the conveyer, or onto a second plurality of pockets on the conveyer. Thus, the first plurality of utensils is being sorted while the second plurality of utensils are being received.




Any spoons are allowed to pass through the aperture in a template. Any remaining utensils such as forks or knives are simultaneously moved past the apertures, and simultaneously removed from the conveyer.




In addition, the plurality of utensils may be oriented simultaneously as they pass through the apertures. As indicated above, the plurality of utensils may be moved past a plurality if bars each disposed over one of the apertures at a location corresponding to the midpoints of the first utensils. The centers of gravity of the utensils are allowed to cause the utensils to pass through the apertures on one side of the bar due to the weight of the utensil, causing the utensils to have a common orientation.




Any remaining knives or forks may be received or provided simultaneously to a second movable conveyer which simultaneously moves the knives and forks past a plurality of second apertures or second template.




It is to be understood that the above-described arrangements are only illustrative of the application of the principles of the present invention. Numerous modifications and alternative arrangements may be devised by those skilled in the art without departing from the spirit and scope of the present invention and the appended claims are intended to cover such modifications and arrangements. Thus, while the present invention has been shown in the drawings and fully described above with particularity and detail in connection with what is presently deemed to be the most practical and preferred embodiment(s) of the invention, it will be apparent to those of ordinary skill in the art that numerous modifications, including, but not limited to, variations in size, materials, shape, form, function and manner of operation, assembly and use may be made without departing from the principles and concepts set forth herein.



Claims
  • 1. A utensil sorting apparatus for simultaneously sorting a plurality of utensils, including at least first and second utensils, the apparatus comprising:a) a template having a plurality of first apertures sized to receive therethrough only the first utensils and capable of simultaneously receiving a plurality of the first utensils through the plurality of first apertures; and b) a movable conveyor, movably disposed across the template and the first apertures, configured to simultaneously move the plurality of utensils across the plurality of first apertures in the template, and sequentially through at least two locations, including: i) a receiving location to receive the plurality of utensils; and ii) a first sorting location to simultaneously pass any first utensil through the plurality of first apertures in the template.
  • 2. The apparatus of claim 1, wherein the template further includes a plurality of second apertures sized to receive therethrough only the second utensils; and wherein the conveyor is further configured to move through a second sorting location to pass any second utensil through the second apertures in the template.
  • 3. The apparatus of claim 2, wherein the template further includes a plurality of third apertures sized to receive therethrough only third utensils; and wherein the conveyor is further configured to move through a third sorting location to pass any third utensil through the third apertures in the template.
  • 4. The apparatus of claim 1, wherein the conveyor has a plurality of partitions formed thereon defining a plurality of pockets therebetween configured to receive the first utensils, each pocket having an opening movable across the template and the first apertures.
  • 5. The apparatus of claim 1, further comprising:a plurality of bars, each disposed laterally across one of the first apertures in the template at a location configured to correspond to midpoints of the respective first utensils, such that centers of gravity of the first utensils are disposed on either side of the respective bar as the first utensils are moved across the first apertures in the template, tending to cause the first utensils to pass through the first apertures in the template on a same side of the respective bar as the center of gravity, thus orienting the first utensils.
  • 6. The apparatus of claim 1, wherein the template is a frusto-conical interior core, and wherein the conveyor is a frusto-conical exterior shell, rotatably disposed on the core.
  • 7. A utensil sorting apparatus configured to sort a plurality of utensils, including at least first and second different utensils, the apparatus comprising:a) a template having at least one aperture sized to receive therethrough only the first utensils; b) the template having a frusto-conical shape with an angled surface configured to receive the utensils and to allow the utensils to slide thereon; and c) a movable conveyor, movably disposed over the template and the at least one aperture, to sequentially move the first and second utensils across the aperture; and d) the movable conveyor having a frusto-conical shape to match the frusto-conical shape of the template.
  • 8. The apparatus of claim 7, wherein the moving conveyor is configured to move the first and second utensils across the aperture in the template, and sequentially through at least two locations, including:a) a receiving location to receive at least one of the first and second utensils; and b) a sorting location to pass any first utensil through the aperture in the template.
  • 9. The apparatus of claim 7, wherein the conveyor has a plurality of partitions formed thereon defining a plurality of pockets therebetween configured to receive the first and second utensils, each pocket having an opening movable across the template and the at least one aperture.
  • 10. The apparatus of claim 7, further comprising:a bar, disposed laterally across the aperture in the template at a location configured to correspond to a midpoint of the first utensils, such that centers of gravity of the first utensils are disposed on either side of the bar as the first utensils are moved across the aperture in the template, tending to cause the first utensils to pass through the aperture in the template on a same side of the bar as the center of gravity, thus orienting the first utensils.
  • 11. The apparatus of claim 7, further comprising a plurality of apertures in the template configured to simultaneously sort a plurality of utensils.
  • 12. The apparatus of claim 7, wherein the template further includes at least a second aperture sized to receive therethrough the second utensils.
  • 13. A method for sorting a plurality of utensils, including at least first and second utensils, the method comprising the steps of:a) simultaneously receiving a plurality of utensils on a movable conveyor; b) simultaneously moving each of the plurality of utensils past one of a plurality of first apertures in a template by moving the conveyor, the first apertures being sized to receive only the first utensils; and c) simultaneously moving any remaining second utensils past the plurality of apertures.
  • 14. The method of claim 13, further comprising the step of:simultaneously moving any remaining second utensils past one of a plurality of second apertures in the template by moving the conveyor, the second apertures being sized to receive only the second utensils.
  • 15. The method of claim 14, further comprising the step of:simultaneously moving any remaining third utensils past one of a plurality of third apertures in the template by moving the conveyor, the third apertures being sized to receive the third utensils.
  • 16. The method of claim 13, wherein step a) further comprises simultaneously receiving the plurality of utensils each into one of a first plurality of pockets on the movable conveyor.
  • 17. The method of claim 16, wherein step b) further comprises simultaneously receiving an additional plurality of utensils each into one of a second plurality of pockets on the movable conveyor.
  • 18. The method of claim 13, wherein step b) further comprises simultaneously orienting the first utensils while the first utensils pass through the apertures.
  • 19. The method of claim 18, further comprising moving the plurality of utensils past a plurality of bars each disposed over one of the apertures at a location corresponding to midpoints of the first utensils; and allowing centers of gravity of the first utensils to cause the first utensils to pass through the apertures on a side of the bar corresponding to the centers of gravity of the first utensils, thus orienting the first utensils.
  • 20. The method of claim 13, wherein the template is a frusto-conical interior core, and wherein the conveyor is a frusto-conical exterior shell, rotatably disposed on the core.
Parent Case Info

This application is a continuation-in-part of U.S. patent application Ser. No. 09/487,836, filed Jan. 19, 2000 now U.S. Pat. No. 6,237,779.

US Referenced Citations (8)
Number Name Date Kind
1985345 Gebhardt Dec 1934 A
3389711 Slayton Jun 1968 A
3389790 Braunheim et al. Jun 1968 A
3389791 Naslund et al. Jun 1968 A
3394804 Reichel Jul 1968 A
3545613 Nystuen Dec 1970 A
3625356 Jackson Dec 1971 A
6237779 Boyer May 2001 B1
Continuation in Parts (1)
Number Date Country
Parent 09/487836 Jan 2000 US
Child 09/825494 US