Nestable and stackable container for the transport of heavy baked items

Information

  • Patent Grant
  • 7784615
  • Patent Number
    7,784,615
  • Date Filed
    Wednesday, May 30, 2007
    17 years ago
  • Date Issued
    Tuesday, August 31, 2010
    14 years ago
  • CPC
  • US Classifications
    Field of Search
    • US
    • 206 518000
    • 206 519000
    • 206 515000
    • 206 505000
    • 206 504000
    • 220 023860
    • 220 631000
    • 220 628000
    • 220 608000
    • 220 556000
    • 220 555000
    • 220 553000
    • 220 527000
    • 220 529000
    • 220 532000
    • 220 533000
    • 220 557000
    • 220 554000
    • D09 761
    • D09 737
    • D07 549
    • D07 546
  • International Classifications
    • B65D21/032
    • Term Extension
      59
Abstract
A container for containing and transporting baked goods includes a front wall, left side wall, rear wall and a right side wall, wherein each of the walls is substantially orthogonal to a base. The base includes a substantially flat, smooth upper surface. Integrally formed as part of and rising from the base are a plurality of base projections, each with a plurality of sloped curved wall surfaces. There are at least two stacking feet per wall of the container. The container further includes 180° stacking recesses located on a rim that surrounds the container and that substantially prevent an upper container from shifting or sliding when stacked in a 180° stacking orientation, preferably for the transportation of baked goods. Each of the recesses further comprises a “U” or “[” shaped projection to interface and retain the stacking feet of an upper container when stacked in the 180° stacking orientation.
Description
BACKGROUND OF THE INVENTION

1. Field of the Invention


The invention relates to containers designed to carry baked products. More particularly, the invention relates to a container for the transport of heavy, baked flour and corn tortillas, while protecting the same from inadvertent markings and indentations.


2. Background Art


In the baked goods industry, many different types of containers exist that can be used for the transport and conveyance of the baked goods. Generally, these baked goods are light, fluffy, yeast-risen products, that are relatively light in weight, although they can be bulky. With the substantial rise in the United States and other locations of people of Hispanic heritage, tortillas have become much more popular. Tortillas have become so popular that the fast food industry has included them as staple items in their menus, and several restaurant chains now exist wherein the tortilla is the staple bread on the menu.


Unfortunately, conventional containers for conventional baked products are ill-suited to carry flour or corn tortilla baked products. As those of ordinary skill in the art of the present invention can appreciate, flour and corn tortillas are relatively heavy, dense baked goods. They are not yeast risen, so they remain relatively flat and flexible. As such, they can be easily stored (one on top of each other), and are commonly sold in packages that weigh as much as five, six or more pounds per bag. Because they are soft and flexible, flour and corn tortillas are easily susceptible to damage. For example, if the flour or corn tortilla package (which generally is only a thin plastic bag) is placed on an indented or protruding surface, the bottom most tortillas most likely will become damaged, with the mark of the indentation or projection transferred to at least several of the bottom most tortillas. While mostly aesthetically unattractive, if the projections or indentation markings are severe enough, they can affect the usefulness of the tortilla by damaging them, or making them weaker at the point of indentation or projection. Consumers, will tend avoid such damaged products. Conventional baked good containers, therefore, with their open ribbed bottoms, are particularly ill-suited for the transportation and/or storage of flour or corn tortillas. Still further, such containers are typically not nearly strong enough to safely carry all the corn or flour tortillas that can fit within them. Therefore, even if one could avoid the problem of damaging or marking the tortillas, use of the conventional container that are designed to carry much lighter yeast-risen baked goods would be inefficient and therefore costly.


Thus, a need exists for a container capable of carrying baked flour and corn tortillas that has the required weight-carrying capacity and will not harm and/or mark the baked flour and corn tortillas.


SUMMARY OF THE INVENTION

It is therefore a general aspect of the invention to provide a container that will obviate or minimize problems of the type previously described. According to a first aspect of the present invention, a container for shipping and storage of packages of baked goods is provided, comprising: a front wall, a rear wall, a left side wall, a right side wall, and a base, wherein, each of the front wall, rear wall, left side wall, and right side wall are substantially orthogonal to the base; and a plurality of base projections located on an upper surface of the base of the container, wherein the base projections are configured to position two or more packages of baked goods such that the packages of baked goods are substantially prevented from sliding about an interior portion of the container. According to the first aspect, each of the plurality of base projections comprises: a plurality of angled surfaces, rising from the upper surface of the base of the container; and an upper surface, wherein the upper surface is joined together with an upper portion of each of the plurality of angled surfaces. According to the first aspect, each of the plurality of angled surfaces comprises: a curved surface, wherein a radius of curvature of each the curved surfaces is substantially similar to a radius of curvature of the package of baked goods. Still further according to the first aspect, the radius of curvature of each of the curved surfaces is substantially similar to a radius of curvature of the baked goods.


Furthermore, according to the first aspect of the present invention, the upper surface comprises: a plurality of cross pieces, wherein a first cross piece is fixedly attached to a first angled surface and a second oppositely located angled surface, and a second cross piece is fixedly attached to a third angled surface and a fourth oppositely located angled surface. The plurality of cross pieces forms a grid with a plurality of openings according to the first aspect. According to the first aspect, the plurality of angled surfaces comprises four angled surfaces, and a height of each of the base projections is between about 20 percent and about 40 percent of an interior height of the walls of the container. According to the first aspect, a height of each of the base projections is between about 25 percent and about 35 percent of an interior height of the walls of the container, and still further according to the first aspect, the height of each of the base projections is about 33.3 percent of an interior height of the walls of the container. According to the first aspect, the plurality of base projections are configured locate at least six separate stacks of packages of baked goods, such that the at least six separate stacks of packages of baked goods are substantially prevented from sliding about an interior portion of the container. And still further according to the first aspect, the plurality of base projections comprises two base projections, and base projections are substantially shaped like a pyramid. According to the first aspect, the base projections are substantially shaped like a column, and wherein the substantially column shaped base projections are tapered such that each is narrower at an upper portion than at a base portion. According to the first aspect, the substantially column shaped base projections are substantially circular. According to the first aspect, the substantially column shaped base projections are substantially square. Still further according to the first aspect, the substantially column shaped base projections are substantially rectangular. According to the first aspect, each of the base projections comprise an opening at an upper location of each of the base projections, such that each of the base projections of an upper container is configured to ventilate heat from a lower container that accumulates in the interior portion of the lower container after the container has been loaded with baked goods.


According to a second aspect of the present invention, a container for shipping and storage of packages of baked goods is provided, comprising: a front wall, a rear wall, a left side wall, a right side wall, and a base, wherein, each of the front wall, rear wall, left side wall, and right side wall are substantially orthogonal to the base; a rim surface located on an uppermost portion of each of the front wall, right side wall, rear wall, and left side wall; a plurality of stacking feet, wherein each of the plurality stacking feet includes a lowermost portion configured to be positioned upon a substantially identical lower container in a 180° stacking orientation, and wherein the lowermost portion includes a stacking foot recess; and a plurality of rim surface recesses, wherein each of the plurality of rim surface recesses includes a rim surface recess projection that rises substantially orthogonally from a lowermost surface of the corresponding rim surface recess, wherein each of the rim surface recess projections of the lower container is configured to be positioned within each of a respective stacking foot recess of each of the plurality of stacking feet when an upper container is stacked on a lower container in a 180° stacking orientation, and further wherein, each of the rim surface recess projections is further configured to substantially prevent shifting and movement of each of the respective corresponding stacking feet of the upper container positioned on each of the rim surface recess projections of the lower container, thereby substantially preventing shifting and movement of the upper container.


Still further according to the second aspect, each of the plurality of rim surface recesses is substantially rectangular. According to the second aspect each of the plurality of rim surface recesses is substantially square. According to the second aspect, each of the rim surface recess projections is substantially U-shaped. According to the second aspect each of the rim surface recess projections is substantially “[”-shaped. According to the second aspect, each of the plurality of stacking foot recesses is substantially rectangular shaped. According to the second aspect each of the plurality of stacking foot recesses is substantially square shaped.





BRIEF DESCRIPTION OF THE DRAWINGS

The novel features and advantages of the present invention will best be understood by reference to the detailed description of the preferred embodiments that follows, when read in conjunction with the accompanying drawings, in which:



FIG. 1 illustrates a top perspective view of a container according to an embodiment of the present invention.



FIG. 2 illustrates a bottom perspective view of the container shown in FIG. 1.



FIG. 3 illustrates a front view of the container shown in FIG. 1.



FIG. 4 illustrates a rear view of the container shown in FIG. 1.



FIG. 5 illustrates a left side view of the container shown in FIG. 1.



FIG. 6 illustrates a right side view of the container shown in FIG. 1.



FIG. 7 illustrates a top view of the container shown in FIG. 1.



FIG. 8 illustrates a bottom view of the container shown in FIG. 1.



FIG. 9 illustrates a top perspective view of another container according to an alternative embodiment of the present invention.



FIG. 10 illustrates a front view of an upper container substantially fully nested within a lower container in a 0° nesting orientation according to an embodiment of the present invention.



FIG. 11 illustrates a right side view of the containers shown in FIG. 10 in a substantially fully nested orientation according to an embodiment of the present invention.



FIG. 12 illustrates a top perspective view of the containers shown in FIG. 10 in a substantially fully nested orientation according to an embodiment of the present invention.



FIG. 13 illustrates a front view of an upper container located on a lower container in a 180° stacking orientation according to an embodiment of the present invention.



FIG. 14 illustrates a right side view of the containers shown in FIG. 13 in a 180° stacking orientation according to an embodiment of the present invention.



FIG. 15 illustrates a top perspective view of the containers shown in FIG. 13 in a 180° stacking orientation according to an embodiment of the present invention.



FIG. 16 illustrates a close-up perspective view of a cone in the container shown in FIG. 1 according to an embodiment of the present invention.





DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The various features of the preferred embodiments will now be described with reference to the drawing figures, in which like parts are identified with the same reference characters. The following description of the presently contemplated best mode of practicing the invention is not to be taken in a limiting sense, but is provided merely for the purpose of describing the general principles of the invention.


I. Introduction—Container 10


Container 10 comprises a front wall 2, right side wall 4, rear wall 6, left side wall 8, and a base 12. According to a preferred embodiment of the present invention, container 10 can carry baked products that are generally heavier and more easily damaged than most yeast-risen baked goods. The features of container 10 are substantially robust, and according to a preferred embodiment of the present invention, container 10 can carry baked goods that weigh in total as much as 30-50 pounds. According to a preferred embodiment of the present invention, container 10 carries flour or corn tortillas. Container 10 comprises eight substantial rigid stacking feet that are substantially as tall as the height of the entire container 10. In a 0° nesting orientation, the stacking feet fit within stacking wells that are fabricated within the walls of container 10; in a 180° stacking orientation, the bottom most portion of each of the stacking feet of container 10 fits within a rectangular shaped well or recess that is located on the top portion of each respective wall, and further each stacking well or recess contains a substantially U-shaped (or “[”shaped) projection that positions and substantially prevents slipping between the stacking feet of the upper container 10′ and the lower container 10. In the interior portion of container 10, on the upper surface of base 12, are located at least two cones, 120a, b according to a preferred embodiment of the present invention. The two cones 120a, b facilitate positioning the packages of baked goods that, according to an embodiment of the present invention, comprise flour or corn tortillas. As those of ordinary skill in the art of the present invention can appreciate, however, container 10 is not limited in any manner whatsoever to the transporting, storing and/or shipping of flour or corn tortillas. Many other different types of products and/or baked goods (including meat products) can be transported, stored and/or shipped using container 10. Each of these features, as well as additional ones, shall now be described in greater detail.


II. Container 10


A. Front Wall 2


As shown in FIGS. 1 and 3, front wall 2 extends substantially vertically and substantially orthogonally from base 12 of container 10, and is substantially orthogonal to left and right side walls 8, and 4. Front wall 2 is substantially parallel to rear wall 6. Front wall 2 includes front wall outer surface 20, front wall inner surface 22, front wall rim 28, vertical nesting support plates 34a-d, and front wall handle 37. Front wall 2 further includes a plurality of ventilation holes 18, left and right front wall stacking feet 14a, b, as well as left and right front wall 180° stacking recesses 24a, b, and left and right front wall 0° nesting feet channels 36a, b.


Front wall rim 28 is located at a top or upper portion of front wall 2, and comprises a vertical and horizontal portion. The rim runs continuously around container 10, although it is identified separately for each of the four wall portions. Front wall rim 28 comprises front wall rim vertical portion 32 and front wall rim horizontal portion 30. Front wall vertical rim portion 32 is substantial co-planar with front wall 2, and orthogonal to front wall rim horizontal portion 30, which is itself substantially horizontal and substantially parallel to base 12. According to a preferred embodiment of the present invention, front wall rim 28 (and its counterparts for the remaining three walls) adds strength to container 10 because of its structure. Front wall rim 28 includes, as described above, front wall rim horizontal portion 30 and front wall rim vertical portion 32, and a portion of front wall 2 itself. Connecting all three portions together are a plurality of spaced-apart vertical plates of which vertical nesting support plates 34a-d are part of this plurality. According to an exemplary embodiment of the present invention, the vertical plates add substantial strength and rigidity to front wall rim 28, and hence container 10. According to a preferred embodiment of the present invention, front wall rim 28 provides an operator with a substantially more stable gripping area with which to pick up container 10 that is heavily loaded with baked goods, including, preferably, tortillas. Front wall rim 28, according to an exemplary embodiment of the present invention, can be generally described as a hollow, substantially rectangular tube-like shape, with the advantage of trusses (i.e., the spaced apart vertical plates) to provide additional strength.


Vertical nesting support plates 34a-d, as shown in FIGS. 1-6 and 10-15, assist in preventing upper container 10′ from becoming wedged too tightly within lower container 10 when the containers 10, 10′ are placed in a 0° nesting orientation. Vertical nesting support plates 34a-d are substantially vertical, relatively thin plates that extend downwardly from underneath front wall rim 28. As shown in FIG. 10, vertical nesting support plates 34a′-d′ of upper container 10′ rest upon front wall rim horizontal portion 30. If ten, twenty, or even more containers 10 are nested in a 0° nesting orientation for transport and/or storage, vertical nest support plates 34a-d substantially prevent upper containers 10′ from becoming wedged too tightly into lower containers 10.


According to a preferred embodiment of the present invention, each of left and right front wall stacking feet 14a, b are integrally formed by front wall 2, and are substantially trapezoidal in shape. That is, the top portion of each of front wall stacking feet 14a, b is slightly wider than a bottom portion of the stacking foot. According to a preferred embodiment of the present invention, left and right front wall nesting feet channels 36a, b are co-formed by left and right front wall stacking feet 14a, b, and are therefore similarly shaped. By designing the top or upper portion of left and right front wall stacking feet 14a, b, and left and right front wall 0° nesting feet channels 36a, b to be wider than they are at a bottom or lower portion, a similar upper container 10′ can be readily and easily substantially nested in a 0° nesting orientation in regard to lower container 10. Front wall 2 further comprises left and right front wall 180° stacking recesses 24a, b, each of which contain left and right front wall 180° stacking recess projections 26a, b. In the 180° stacking orientation, when an upper similar container 10′ is rotated 180° with respect to lower container 10, and then placed upon lower container 10, such that rear wall 6′ of upper container 10′ faces the same direction as front wall 2 of lower container 10, the bottoms of each of right and left rear wall stacking feet 68b, a fits within respective left and right front wall 180° stacking recesses 24a, b. 0° Nesting and 180° stacking is discussed in greater detail infra.


B. Right Side Wall 4


As shown in FIGS. 1 and 6, right side wall 4 preferably extends substantially vertically and substantially orthogonally from base 12 of container 10, and is substantially orthogonal to front left side wall 8 and rear wall 6. Right side wall 4 is substantially parallel to left side wall 6. Right side wall 4 includes right side wall outer surface 46, right side inner surface 48, right side wall rim 54, vertical nesting support plate 60 and right side wall handle 42. Right side wall handle 42 includes means (holes) for mounting RFID tags, the use of which is well known to those of ordinary skill in the art of the present invention. According to a preferred embodiment of the present invention, right side wall handle 42 further includes scalloped top portion 66, which allows operators to easily identify the orientation of container 10. Right side wall 4 further includes a plurality of ventilation holes 44, front and rear right side wall stacking feet 40a, b, as well as front and rear right side wall 180° stacking recesses 50a, b, and front and rear right side wall 0° nesting feet channels 62a, b.


Right side wall rim 54 is located at a top or upper portion of right side wall 4, and comprises a vertical and horizontal portion. The rim runs continuously around container 10, although, as mentioned supra, it is identified separately for each of the four wall portions. Right side wall rim 54 comprises right side wall rim vertical portion 58 and right side wall rim horizontal portion 56. According to a preferred embodiment of the present invention, right side wall vertical rim portion 58 is substantial planar to right side wall 4, and orthogonal to right side wall rim horizontal portion 56, which is itself substantially horizontal, and substantially parallel to base 12. Right side wall rim 54 (and its counterparts for the remaining three walls) add strength to container 10 because of its structure. Right side wall rim 54 includes, as described above, right side wall rim horizontal portion 56 and right side wall rim vertical portion 58, and a portion of right side wall 4 itself. Connecting all three portions together are a plurality of spaced-apart vertical plates of which vertical nesting support plate 60 is part of this plurality. According to an exemplary embodiment of the present invention, vertical plates add substantial strength and rigidity to right side wall rim 54, and hence container 10. According to a preferred embodiment of the present invention, right side wall rim 54 provides an operator with a substantially more stable gripping area with which to pick up container 10 that is heavily loaded with baked goods, including tortillas. According to a preferred embodiment of the present invention, right side wall rim 54 can be generally described as a hollow, substantially rectangular tube-like shape, with the advantage of trusses (the spaced apart vertical plates) to provide additional strength.


According to a preferred embodiment of the present invention, vertical nesting support plate 60, as shown in FIG. 6, assists in preventing upper container 10′ from becoming wedged too tightly within lower container 10 when the containers 10, 10″ are placed in a 0° nesting orientation. Vertical nesting support plate 60 is a substantially vertical, relatively thin plate that extends downwardly from underneath right side wall rim 54. The discussion, supra, in regard to front wall vertical nesting support plates 34a-d, applies equally as well to vertical nesting support plate 60, and shall not be repeated for the purpose of clarity.


According to a preferred embodiment of the present invention, each of front and rear right side wall stacking feet 40a, b are integrally formed by right side wall 4, and are substantially trapezoidal in shape. That is, the top portion of each of front and rear right side wall stacking feet 40a, b is slightly wider than a bottom portion of the stacking foot. According to an exemplary embodiment of the present invention, front and rear right side wall stacking feet channels 62a, b are co-formed by front and rear right side wall stacking feet 40a, b, and are therefore similarly shaped. By designing the top or upper portion of front and rear right side wall stacking feet 40a, b and front and rear front wall stacking feet channels 62a, b to be wider than they are at a bottom or lower portion, a similar upper container 10′ can be readily and easily substantially nested in a 0° nesting orientation in regard to lower container 10. Right side wall 4 further comprises front and rear right side wall 180° stacking recesses 50a, b, each of which contain front and rear right side wall 180° stacking recess projections 52a, b. In the 180° stacking orientation, when an upper similar container 10′ is rotated 180° with respect to lower container 10, and then placed upon lower container 10, such that left side wall 8′ of upper container 10′ faces the same direction as right side wall 4 of lower container 10, the bottoms of each of rear and front left side wall stacking feet 118b, a fits within respective front and rear right side wall 180° stacking recesses 50a, b. 0° Nesting and 180° stacking is discussed in greater detail infra.


C. Rear Wall 6


As shown in FIGS. 1 and 4, rear wall 6 extends substantially vertically and substantially orthogonally from base 12 of container 10, and is substantially orthogonal to left and right side walls 8, and 4. Rear wall 6 is substantially parallel to front wall 2. Rear wall 6 includes rear wall outer surface 74, rear wall inner surface 76, rear wall rim 82, vertical nesting support plates 88a-d, and rear wall handle 70. Rear wall 6 further includes a plurality of ventilation holes 72, left and right rear wall stacking feet 68a, b, as well as left and right rear wall 180° stacking recesses 78a, b, and left and right rear wall 0° nesting feet channels 90a, b.


Rear wall rim 82 is located at a top or upper portion of rear wall 6, and comprises a vertical and horizontal portion. Rear wall rim 82 comprises rear wall rim vertical portion 86 and rear wall rim horizontal portion 84. Rear wall vertical rim portion 82 is substantial planar to rear wall 6, and orthogonal to rear wall rim horizontal portion 84, which is itself substantially horizontal and substantially parallel to base 12. According to a preferred embodiment of the present invention, rear wall rim 82 (and its counterparts for the remaining three walls) adds strength to container 10 because of its structure. According to a preferred embodiment of the present invention, rear wall rim 82 includes, as described above, rear wall rim horizontal portion 84 and rear wall rim vertical portion 86, and a portion of rear wall 6 itself. Connecting all three portions together are a plurality of spaced-apart vertical plates of which vertical nesting support plates 88a-d are part of this plurality. According to an exemplary embodiment of the present invention, the vertical plates add substantial strength and rigidity to rear wall rim 82, and hence container 10. According to a preferred embodiment of the present invention, rear wall rim 82 provides an operator with a substantially more stable gripping area with which to pick up container 10 that is heavily loaded with baked goods, including, preferably, tortillas. According to a preferred embodiment of the present invention, rear wall rim 82 can be generally described as a hollow, substantially rectangular tube-like shape, with the advantage of trusses (the spaced apart vertical plates) to provide additional strength.


Vertical nesting support plates 88a-d, as shown in FIGS. 4-6, assist in preventing upper container 10′ from becoming wedged too tightly within lower container 10 when the containers 10, 10″ are placed in a 0° nesting orientation. Vertical nesting support plates 88a-d are substantially vertical, relatively thin plates that extend downwardly from underneath rear wall rim 82. The discussion supra, in regard to front wall vertical nesting support plates 34a-d, applies equally as well to vertical nesting support plates 88a-d, and shall not be repeated for the purpose of clarity.


According to a preferred embodiment of the present invention, each of left and right rear wall stacking feet 68a, b are integrally formed by rear wall 6, and are substantially trapezoidal in shape. That is, the top portion of each of rear wall stacking feet 68a, b is slightly wider than a bottom portion of the stacking foot. According to a preferred embodiment of the present invention, left and right rear wall 0° nesting feet channels 90a, b are co-formed by left and right rear wall stacking feet 68a, b, and are therefore similarly shaped. By designing the top or upper portion of left and right rear wall stacking feet 68a, b, and left and right rear wall 0° nesting feet channels 90a, b to be wider than they are at a bottom or lower portion, a similar upper container 10′ can be readily and easily substantially nested in a 0° nesting orientation in regard to lower container 10. Rear wall 6 further comprises left and right rear wall 180° stacking recesses 78a, b, each of which contain left and right rear wall 180° stacking recess projections 80a,b. In the 180° stacking orientation, when an upper similar container 10′ is rotated 180° with respect to lower container 10, and then placed upon lower container 10, such that front wall 2′ of upper container 10′ faces the same direction as rear wall 6 of lower container 10, the bottoms of each of right and left front wall stacking feet 14b, a fits within respective left and right rear wall 180° stacking recesses 78a, b. 0° Nesting and 180° stacking is discussed in greater detail infra.


D. Left Side Wall 8


As shown in FIGS. 1 and 5, left side wall 8 extends preferably substantially vertically and substantially orthogonally from base 12 of container 10, and is substantially orthogonal to front and rear walls 2, and 6. Left side wall is substantially parallel to right side wall 4. Left side wall 8 includes left side wall outer surface 100, left side inner surface 102, left side wall rim 108, vertical nesting support plate 114 and left side wall handle 119. Left side wall handle 119 includes means (holes) for mounting RFID tags, the use of which is well known to those of ordinary skill in the art of the present invention. Left side wall 8 further includes a plurality of ventilation holes 98, front and rear left side wall stacking feet 94a, b, as well as front and rear left side wall 180° stacking recesses 104a, b, and front and rear left side wall 0° nesting feet channels 116a,b.


Left side wall rim 108 is located at a top or upper portion of left side wall 8, and comprises a vertical and horizontal portion. The rim runs continuously around container 10, although, as mentioned supra, it is identified separately for each of the four wall portions. Left side wall rim 108 comprises left side wall rim vertical portion 112 and left side wall rim horizontal portion 110. According to a preferred embodiment of the present invention, left side wall rim vertical portion 112 is substantial planar to left side wall 8, and orthogonal to left side wall rim horizontal portion 110, which is itself substantially horizontal, and substantially parallel to base 12. Left side wall rim 108 (and its counterparts for the remaining three walls) add strength to container 10 because of its structure. Left side wall rim 108 includes, as described above, left side wall rim horizontal portion 110 and left side wall rim vertical portion 112, and a portion of left side wall 8 itself. Connecting all three portions together are a plurality of spaced-apart vertical plates of which vertical nesting support plate 114 is part of this plurality. According to an exemplary embodiment of the present invention, the vertical plates add substantial strength and rigidity to left side wall rim 108, and hence container 10. According to a preferred embodiment of the present invention, left side wall rim 108 provides an operator with a substantially more stable gripping area with which to pick up container 10 that is heavily loaded with baked goods, including tortillas. According to a preferred embodiment of the present invention, left side wall rim 108 can be generally described as a hollow, substantially rectangular tube-like shape, with the advantage of trusses (the spaced apart vertical plates) to provide additional strength.


Vertical nesting support plate 114, as shown in FIG. 5, assists in preventing upper container 10′ from becoming wedged too tightly within lower container 10 when the containers 10, 10″ are placed in a 0° nesting orientation. Vertical nesting support plate 114 is a substantially vertical, relatively thin plate that extends downwardly from underneath left wall rim 108. The discussion supra, in regard to front wall vertical nesting support plates 34a-d, applies equally as well to vertical nesting support plate 114, and shall not be repeated for the purpose of clarity.


According to a preferred embodiment of the present invention, each of front and rear left side wall stacking feet 94a, b are integrally formed by left side wall 8, and are substantially trapezoidal in shape. That is, the top portion of each of front and rear left side wall nesting feet 94a, b is slightly wider than a bottom portion of the stacking foot. According to a preferred embodiment of the present invention, front and rear left side wall 0° nesting feet channels 116a, b are co-formed by front and rear left side wall stacking feet 94a, b, and are therefore similarly shaped. By designing the top or upper portion of front and rear left side wall stacking feet 94a, b, and front and rear left wall 0° nesting feet channels 116a, b to be wider than they are at a bottom or lower portion, a similar upper container 10′ can be readily and easily substantially nested in a 0° nesting orientation in regard to lower container 10. Left side wall 8 further comprises front and rear left side wall 180° stacking recesses 104a, b, each of which contain front and rear left side wall 180° stacking recess projections 106a, b. In the 180° stacking orientation, when an upper similar container 10′ is rotated 180° with respect to lower container 10, and then placed upon lower container 10, such that right side wall 4′ of upper container 10′ faces the same direction as left side wall 8 of lower container 10, the bottoms of each of rear and front right side wall stacking feet 40b, a fits within respective front and rear left side wall 180° stacking recesses 104a, b. 0° Nesting and 180° stacking is discussed in greater detail infra.


E. Base 12


Referring to FIGS. 1, 2 and 7, base 12 is preferably substantially orthogonal to left and right side walls 8, 4 and front and rear walls 2, 6. Base 12 includes a substantially flat upper surface 130, and a ribbed lower surface 128. Further provided on upper surface 130 of base 12 are left and right cones 120a, b. FIG. 16 illustrates a close-up perspective view of cone 120a according to an exemplary embodiment of the present invention. Left cone 120a (and right cone 120b) comprises a plurality of sloped curved surfaces 122. According to a preferred embodiment of the present invention, cones 120a, b are substantially shaped like a truncated pyramid; that is, each of cones 120a, b is four sided, with sides that rise upwardly and slope inwardly and a base portion that is larger in perimeter than the top, generally flat upper surface 124. Generally flat upper surface 124 comprises a plurality of cone crosspieces 126; according to an exemplary embodiment of the present invention, a first cone cross piece 126a is connected to an upper portion of first sloped curved surface 122a and to a second sloped curved surface 122b directly opposite that of first sloped curved surface 122a. A second cone cross piece 126b is connected to a third sloped curved surface 122c and fourth sloped curved surface 122d, directly opposite that of third sloped curved surface 122c. A grid is thereby formed by the intersecting of cone cross pieces 126a, b, forming a plurality of openings, discussed in detail infra.


As opposed to a pyramid, left and right cones 120a, b, according to an exemplary embodiment of the present invention, are substantially flat topped, with an upper surface 124 that is substantially parallel to base 12. Left and right cones 120a, b can also be referred to as base projections 120a, b, or projections 120a, b. According to a preferred embodiment of the present invention, each of sloped curved surfaces 122 provide a structural interface whereby baked goods, preferably packages of tortillas, are kept substantially separated from each other and substantially prevented from sliding about the interior portion of container 10. Cone or tapered substantially pyramid shaped structure projections (base projections) 120a, b is used because it allows operators to more easily insert packaged of baked goods into the interior of container 10. According to an exemplary embodiment of the present invention, operators in the baking industry can find it easier to insert packages of baked tortillas into the interior portion of the container 10 because base projections 120a, b act as a lead to the packages of baked goods as placed in the interior portion of container 10. However, ease of loading container 10 through use of base projections 120a, b is not limited to tortilla products, as nearly any other type of baked good or agricultural or meat product can be more easily loaded into container 10 because of base projections 120a, b.


According to an exemplary embodiment of the present invention, base projections 120a, b can also be shaped like a column. According to a preferred embodiment of the present invention, base projections 120a, b can also be substantially column shaped, substantially round, substantially square, substantially oval, or substantially rectangular, and can be substantially tapered or not.


According to an exemplary embodiment of the present invention, each of cones 120a, b includes a plurality of sloped curved surfaces 122 wherein the radius of curvature of each of the sloped curved surfaces 122 is substantially similar to the radius of curvature of the tortillas. According to a preferred embodiment of the present invention, tortillas are packaged in soft, relatively thin plastic bags, wherein the packages generally conform to the shape of the baked tortilla product. By matching the radius of curvature of the sloped curved surface 122 to the radius of curvature of the tortillas, the tortillas and tortilla packages are substantially securely fixed in place. As one of ordinary skill in the art of the present invention can appreciate, the radius of curvature of the sloped curved surfaces 122 is not constant because of the taper of the sloped curved surface 122; that is, the radius of curvature of sloped curved surfaces 122 is a first value at the interface between flat upper surface 130 of base 12 and each of the sloped curved surfaces 122, and increases to a final value at the uppermost portion of the sloped curved surfaces 122. According to an exemplary embodiment of the present invention the radius of curvature of sloped curved surfaces 122 at the base interface between flat upper surface 130 of base 12 and sloped curved surfaces 122 ranges from about 2.25″ to about 4.25″. According to a preferred embodiment of the present invention, the radius of curvature at the base interface between flat upper surface 130 of base 12 and sloped curved surfaces 122 is about 3.25″. According to further exemplary non-limiting embodiments of the present invention, the radius of curvature at the base interface between flat upper surface 130 of base 12 and sloped curved surfaces 122 can range from between about 2″ to about 10″.


Because baked goods in general, and tortillas in particular, are soft malleable goods, flat upper surface 130 of base 12 is substantially smooth, flat and substantially free of any markings, indentations, and/or projections, with the exception of several drain holes as shown in FIG. 1. Referring to FIG. 7, it can be seen that the placement of cones (or base projections) 120a, b allow for stacking of at least six different stacks of tortilla packages according to a preferred embodiment of the present invention. As one of ordinary skill in the art can appreciate, operators can load containers 10 just after the baking process has been completed and packaging has occurred. Therefore, the packages of baked goods are usually fairly warm when loaded into containers 10, and as such are even more particularly soft and malleable, further enhancing the usefulness of the substantially flat and smooth upper surface 130 of base 12 in preventing damage to the recently baked goods.


As discussed supra, cones or projections 120a, b further comprise a plurality of grid openings as shown in detail in FIG. 16. Because baked goods in general, and preferably tortillas, are loaded into containers 10 soon after they are baked, they are generally still fairly warm, and have a substantial amount of heat stored within them. Cones or base projections 120a, b comprise a plurality of openings at the top-most portion formed by the intersection of cone cross-pieces 126 (as discussed supra); this causes cones or projections 120a, b to act as a chimney when a lower container 10 has an upper container 10′ placed on top of lower container 10 in the 180° stacking orientation (which is discussed in detail infra). The heat being given off from the freshly baked goods rises and escapes from the lower container's 10 interior portion through upper container's 10′ cones or base projections 120a′, b′. If multiple containers 10, 10′ are stacked upon each other, after being loaded with freshly baked goods, the net effect is that all the cones or base projections 120a, b line up vertically and provide or form a chimney for the heat to escape. If the heat did not escape, it could otherwise cause overheating of the plastic the containers are manufactured from, or the plastic containers the baked goods are packaged within. Further still, the excess heat could cause condensation on or in the packages of baled goods if it has not escaped and the loaded containers are placed outside in a colder environment.


F. 0° Nesting


0° nesting describes the orientation of at least two containers 10 when an upper container 10′ is placed within a lower, similar container 10, such that all four sides of the upper container 10′ face the same direction as the lower container 10. 0° nesting is used, according to an exemplary embodiment of the present invention, for the purpose of storing and/or transporting empty or substantially empty containers 10.



FIG. 10 illustrates a front view of an upper container substantially fully nested within a lower container in a 0° nesting orientation according to an embodiment of the present invention, FIG. 11 illustrates a right side view of the containers shown in FIG. 10 in a substantially fully nested orientation according to an embodiment of the present invention, and FIG. 12 illustrates a top perspective view of the containers shown in FIG. 10 in a substantially fully nested orientation according to an embodiment of the present invention. Referring to FIGS. 10-12, upper container 10′ is substantially nested within lower container 10 in a 0° nesting orientation. According to a preferred embodiment of the present invention, an upper container 10′ is 0° nested within a lower container 10′ when the upper container 10′ is placed, or positioned, within the lower container 10, and front wall 2′ of upper container 10′ faces the same direction as front wall 2 of the lower container 10, as do all the other walls. All the stacking feet of each respective 0° wall of upper container 10′ fits within their respective 0° nesting feet channels of lower container 10. That is, left front wall stacking foot 14a slides into, and rests within, left front 0° nesting feet channel 36a; right front wall stacking foot 14b′ slides into, and rests within, right front 0° nesting feet channel 36b; front right side wall stacking foot 40a′ slides into, and rests within, front right side wall 0° nesting feet channel 62a; rear right side wall stacking foot 40b′ slides into, and rests within, rear right side wall 0° nesting feet channel 62b; right rear wall stacking foot 68b′ slides into, and rests within, right rear 0° nesting foot channel 90b; left rear wall stacking foot 68a′ slides into, and rests within, left rear 0° nesting foot channel 90a; rear left side wall stacking foot 94b′ slides into, and rests within, rear left side wall 0° nesting foot channel 116b; and front left side wall stacking foot 94a′ slides into, and rests within, front left side wall 0° nesting foot channel 116a.


According to a preferred embodiment of the present invention, the vertical nesting support plates facilitate 0° nesting, by supporting upper containers 10′ on lower containers 10, such that the upper containers 10′ do not become wedged too tightly into lower containers 10. For example, referring to FIGS. 3-6, and 10-12, vertical nesting support plates 34a′-d′ (of upper container 10′) rests upon front wall rim horizontal portion 30; vertical nesting support plate 60′ rests upon right side wall rim horizontal portion 56; vertical nesting support plate 88a′-d′ rests upon rear wall rim horizontal portion 84; and vertical nesting support plate 114′ rests upon left side wall rim horizontal portion 110. Use of the vertical nesting support plates substantially prevents upper container 10′ from wedging into lower container 10. Left and right cones 120a, b of lower container 10 are also substantially prevented from wedging into left and right cones 120a′, b′ of upper container 10′.


The height of container 10, according to an exemplary embodiment of the present invention, is about 8.75″; when two containers are placed in the 0° nesting orientation, the total height is about 11.75″. Thus, each additional container placed in the 0° nesting orientation adds about 3.00″ to the height of the stack. When four containers are placed in the 0° nesting orientation on top of each other, the total height is about 17.75″; the three additional containers take the same amount of space of about one additional container. This corresponds to a nesting ratio of about 3:1. Of course, as one of ordinary skill in the art of the present invention can appreciate, the nesting ratio can be designed to be any reasonable value.


According to an exemplary embodiment of the present invention, the amount of nesting is partially determined by the angle of the walls; the steeper the angle (i.e., the closer to 90° they approach), the less the nesting ratio will be. Conversely, the shallower the angle of the walls, the greater the nesting ratio. According to an exemplary embodiment of the present invention, cones or base projections 120a, b also provide stops for nesting and affect the amount of nesting; that is, when an upper container 10′ is placed on a lower container 10, ribbed lower surface 128 rests upon cones upper surface 124 of cones or base projections 120a, b. A 3:1 nesting ratio provides operators of containers 10 with the ability to return almost three times as many containers in a return trip, on a per-volume basis, as were delivered. The 3:1 nesting ratio maximizes the amount of containers 10 that can be returned by a truck. There is, as one of ordinary skill in the art can appreciate, a tradeoff between higher nesting ratios and lower nesting ratios. If the nesting ratio is extremely large, then the angle of the walls is very shallow, and volumetric efficiency of container 10 suffers. On the contrary, if the nesting ratio is small (i.e., no nesting), then there is no advantage or efficiency in returning empty containers; each truckload can only carry the same amount of empty and loaded containers.


G. 180° Stacking


180° stacking describes the orientation of at least two containers when an upper, substantially similar container 10′ is placed on a lower container 10 such that rear wall 6′ of upper container 10′ faces the same direction as front wall 2′ of lower container 10, right side wall 4′ of upper container 10′ faces the same direction as left side wall 8 of lower container 10, left side wall 8′ of upper container 10′ faces the same direction as right side wall 4 of lower container 10, and front wall 2′ of upper container 10′ faces the same direction as rear wall 6 of lower container 10. According to a preferred embodiment of the present invention, 180° stacking is used when at least the lower container 10′ is filled, either partially or wholly, with baked goods. FIG. 13 illustrates a front view of an upper container located on a lower container in a 180° stacking orientation according to an embodiment of the present invention, FIG. 14 illustrates a right side view of the containers shown in FIG. 13 in a 180° stacking orientation according to an embodiment of the present invention, and FIG. 15 illustrates a top perspective view of the containers shown in FIG. 13 in a 180° stacking orientation according to an embodiment of the present invention.


Referring to FIGS. 13-15, upper container 10′ is located in the 180° stacking orientation in regard to lower container 10. In the 180° stacking orientation, upper container 10′ is 180° stacked upon lower container 10′ such that rear wall 6′ of upper container 10′ is located over front wall 2 of lower container 10, and right rear stacking foot 68b′ is placed onto left front wall 180° stacking recess 24a. According to a preferred embodiment of the present invention, when right rear stacking foot 68b′ is placed onto left front wall 180° stacking recess 24a, right rear wall stacking foot recess 92b′ fits about left front wall 180° stacking recess projection 26a, thereby substantially preventing movement of right rear stacking foot 68b within left front wall 180° stacking recess 24a. In the 180° stacking orientation, according to an exemplary embodiment of the present invention, left rear stacking foot 68a′ is placed onto right front wall 180° stacking recess 24b. According to a preferred embodiment of the present invention, when left rear stacking foot 68a′ is placed onto right front wall 180° stacking recess 24b, left rear wall stacking foot recess 92a′ fits about right front wall 180° stacking recess projection 26b, thereby substantially preventing movement of left rear stacking foot 68a′ within right front wall 180° stacking recess 24b.


In the 180° stacking orientation, left side wall 8′ of upper container 10′ is located above right side wall 4 of lower container 10. Referring now to FIGS. 5, 6, 13 and 14, in the 180° stacking orientation, according to an exemplary embodiment of the present invention, rear left side wall stacking foot 94b′ is placed onto front right side wall 180° stacking recess 50a. When rear left side wall stacking foot 94b′ is placed onto front right side wall 180° stacking recess 50a, front left side wall stacking foot recess 118b′ fits about front right side wall 180° stacking recess projection 52a, thereby substantially preventing movement of rear left side wall stacking foot 94b′ within front right side wall 180° stacking recess 50a. Also as shown FIGS. 5, 6, 13 and 14, in the 180° stacking orientation, front left side wall stacking foot 94a′ is placed onto rear right side wall 180° stacking recess 50b. According to a preferred embodiment of the present invention, when front left side wall stacking foot 94a′ is placed onto rear right side wall 180° stacking recess 50b, rear left side wall stacking foot recess 118a′ fits about rear right side wall 180° stacking recess projection 52b, thereby substantially preventing movement of front left side wall stacking foot 94a′ within rear right side wall 180° stacking recess 50b.


In the 180° stacking orientation, front wall 2′ of upper container 10′ is located over rear wall 6 of lower container 10. Referring to FIGS. 3 and 4, according to an exemplary embodiment of the present invention, left front wall stacking foot 14a′ is placed onto right rear wall 180° stacking recess 78b. According to a preferred embodiment of the present invention, when left front wall stacking foot 14a′ is placed onto right rear wall 180° stacking recess 78b, left front wall stacking foot recess 38a′ fits about right rear wall 180° stacking recess projection 80b, thereby substantially preventing movement of left front wall stacking foot 14a′ within right rear wall 180° stacking recess 78b. Also as shown in FIGS. 5 and 6, in the 180° stacking orientation, right front wall stacking foot 14b′ is placed onto left rear wall 180° stacking recess 78a. According to a preferred embodiment of the present invention, when right front wall stacking foot 14b′ is placed onto left rear wall 180° stacking recess 78a, right front wall stacking foot recess 38b′ fits about left rear wall 180° stacking recess projection 80a, thereby substantially preventing movement of right front wall stacking foot 14b′ within left rear wall 180° stacking recess 78a.


In the 180° stacking orientation, right side wall 4′ of upper container 10′ is located over left side wall 8 of lower container 10. Referring to FIGS. 5 and 6, in the 180° stacking orientation, front right side wall stacking foot 40a′ is placed onto rear left side wall 180° stacking recess 104b. According to a preferred embodiment of the present invention, when front right side wall stacking foot 40a′ is placed onto rear left side wall 180° stacking recess 104b, front right side wall stacking foot recess 64a′ fits about rear left side wall 180° stacking recess projection 106b, thereby substantially preventing movement of front right side wall stacking foot 40a′ within rear left side wall 180° stacking recess 104b. Also as shown in FIGS. 5 and 6, in the 180° stacking orientation, rear right side wall stacking foot 40b′ is placed onto front left side wall 180° stacking recess 104a. According to a preferred embodiment of the present invention, when rear right side wall stacking foot 40b′ is placed onto front left side wall 180° stacking recess 104a, rear right side wall stacking foot recess 64b′ fits about front left side wall 180° stacking recess projection 106a, thereby substantially preventing movement of rear right side wall stacking foot 40b′ within front left side wall 180° stacking recess 104a.


According to a preferred embodiment of the present invention, in the 180° stacking orientation, the total combined height of lower container 10 and upper container 10′ is about 17″. This provides, according to an exemplary embodiment of the present invention, about 7.75″ clearance, or product clearances between upper surface 130 of lower container 10, and ribbed lower surface 128′ of upper container 10′. Therefore, according to an exemplary embodiment of the present invention, about 1″ of the total height of container 10 is lost when placed in the 180° stacking orientation, thereby providing an efficient storage container when placed in the 180° stacking orientation In addition, because upper container 10′ is stacked upon lower container 10 with the use of the 180° stacking recess projections (26a, b; 52a, b; 80a, b; and 106a, b), upper container 10′ is securely stacked upon lower container 10, such that shifting and/or slipping of upper container 10 is substantially prevented. Thus, container 10 provides a significant amount of storage space for baked goods, which, according to an exemplary embodiment of the present invention, are preferably tortillas.


III. Container 210


Container 210, shown in FIG. 9, is substantially similar to container 10. As such, a detailed description as provided supra in regard to container 10 has been omitted for the sake of clarity. In nearly all respects, container 210 comprises the same or substantially identical features as container 10. For example, container 210 comprises substantially identical 0° nesting and 180° stacking features as described supra, and as shown in detail in FIG. 9. However, a difference between container 10 and container 210 is the composition of base 212, which omits cones 120a, b, and which further includes larger and more numerous drain holes 214. Container 210 is designed to carry, according to an exemplary embodiment of the present invention, baked goods, such as bagels, muffins, tortillas, fruit, other agricultural products, meat products, and practically anything of significant weight. Drain holes 214 are used to provide easier washing of container 210.


The present invention has been described with reference to certain exemplary embodiments thereof. However, it will be readily apparent to those skilled in the art that it is possible to embody the invention in specific forms other than those of the exemplary embodiments described above. This may be done without departing from the spirit and scope of the invention. The exemplary embodiments are merely illustrative and should not be considered restrictive in any way. The scope of the invention is defined by the appended claims and their equivalents, rather than by the preceding description.


All United States patents and applications, foreign patents, and publications discussed above are hereby incorporated herein by reference in their entireties.

Claims
  • 1. A container for shipping and storage of packages of baked goods, comprising: a front wall, a rear wall, a left side wall, a right side wall, and a base, wherein, each of the front wall, rear wall, left side wall, and right side wall are substantially orthogonal to the base; anda plurality of base projections located on an upper surface of the base of the container, wherein the base projections are configured to position two or more packages of baked goods such that the packages of baked goods are substantially prevented from sliding about an interior portion of the container, and wherein each of the plurality of base projections comprises:a plurality of angled surfaces, rising from the upper surface of the base of the container; andan upper surface, wherein the upper surface is joined together with an upper portion of each of the plurality of angled surfaces; anda curved surface forming an inwardly concave cross-section when taken perpendicular to a height of each base projection, wherein a radius of curvature of each of the curved surfaces is substantially similar to a radius of curvature of the package of baked goods.
  • 2. The container according to claim 1, wherein the upper surface comprises: a plurality of cross pieces, wherein a first cross piece is fixedly attached to a first angled surface and a second oppositely located angled surface, anda second cross piece is fixedly attached to a third angled surface and a fourth oppositely located angled surface.
  • 3. The container according to claim 2, wherein the plurality of cross pieces forms a grid with a plurality of openings.
  • 4. The container according to claim 1, wherein the plurality of angled surfaces comprises four angled surfaces.
  • 5. The container according to claim 1, wherein a height of each of the base projections is between about 20 percent and about 40 percent of an interior height of the walls of the container.
  • 6. The container according to claim 1, wherein a height of each of the base projections is between about 25 percent and about 35 percent of an interior height of the walls of the container.
  • 7. The container according to claim 1, wherein a height of each of the base projections is about 33.3 percent of an interior height of the walls of the container.
  • 8. The container according to claim 1, wherein the plurality of base projections is configured to locate at least six separate stacks of packages of baked goods, such that the at least six separate stacks of packages of baked goods are substantially prevented from sliding about an interior portion of the container.
  • 9. The container according to claim 8, wherein the plurality of base projections comprises two base projections.
  • 10. The container according to claim 1, wherein the base projections are substantially truncated pyramid-shaped.
  • 11. The container according to claim 1, wherein each of the base projections comprise an opening at an upper location of each of the base projections, such that each of the base projections of an upper container is configured to ventilate heat from a lower container that accumulates in the interior portion of the lower container after the container has been loaded with baked goods.
  • 12. A container for shipping and storage of packages of baked goods, comprising: a front wall, a rear wall, a left side wall, a right side wall, and a base, wherein, each of the front wall, rear wall, left side wall, and right side wall are substantially orthogonal to the base;a rim surface located on an uppermost portion of each of the front wall, right side wall, rear wall, and left side wall;a plurality of stacking feet, each stacking foot defining a corresponding recessed nesting channel along an interior surface of the container and having an opening on the rim surface adapted for receiving a corresponding stacking foot of a substantially identical upper container in a 0° stacking orientation, wherein each of the plurality of stacking feet includes a lowermost portion configured to be positioned upon a substantially identical lower container in a 180° stacking orientation, and wherein the lowermost portion includes a stacking foot recess; anda plurality of rim surface recesses, wherein each of the plurality of rim surface recesses includes a rim surface recess projection within each rim surface recess that rises substantially orthogonally from a lowermost surface of the corresponding rim surface recess, wherein each of the rim surface recess projections of the lower container is configured to be positioned within each of a respective stacking foot recess of each of the plurality of stacking feet when an upper container is stacked on a lower container in a 180° stacking orientation, and further wherein,each of the rim surface recess projections is further configured to substantially prevent shifting and movement of each of the respective corresponding stacking feet of the upper container positioned on each of the rim surface recess projections of the lower container, thereby substantially preventing shifting and movement of the upper container.
  • 13. The container according to claim 12, wherein each of the plurality of rim surface recesses is substantially rectangular.
  • 14. The container according to claim 12, wherein each of the plurality of rim surface recesses is substantially square.
  • 15. The container according to claim 12, wherein each of the rim surface recess projections is substantially U-shaped.
  • 16. The container according to claim 12, wherein each of the rim surface recess projections is substantially “[”-shaped.
  • 17. The container according to claim 12, wherein each of the plurality of stacking foot recesses is substantially rectangular shaped.
  • 18. The container according to claim 12, wherein each of the plurality of stacking foot recesses is substantially square shaped.
US Referenced Citations (227)
Number Name Date Kind
2026204 Andrews Dec 1935 A
2029746 Tufts et al. Feb 1936 A
2061414 Tufts et al. Nov 1936 A
2134875 Henze Nov 1938 A
2457841 Smith et al. Jan 1949 A
2457842 Smith et al. Jan 1949 A
2609120 Williams Sep 1952 A
2641383 Coursey Jun 1953 A
2918379 Lurie Dec 1959 A
3154215 Le Vesconte Oct 1964 A
3200988 De Chelbor Aug 1965 A
3375953 Miller, Jr. Apr 1968 A
3379339 Asenbauer Apr 1968 A
3387740 Bockenstette Jun 1968 A
3392875 Bockenstette Jul 1968 A
3420402 Frater et al. Jan 1969 A
3421656 Asenbauer Jan 1969 A
3430806 Munk et al. Mar 1969 A
3521808 Weiss Jul 1970 A
3570697 Langston Mar 1971 A
3613943 Bridenstine Oct 1971 A
3659743 Box May 1972 A
3752352 Senecal Aug 1973 A
3780905 Herolzer Dec 1973 A
D236168 Johnson Jul 1975 S
3907111 Levenhagen Sep 1975 A
3934724 Johnson Jan 1976 A
3951265 Carroll Apr 1976 A
3952903 Sanders et al. Apr 1976 A
3993211 Astle Nov 1976 A
4000817 Sanders et al. Jan 1977 A
4093070 Stahl Jun 1978 A
4093071 Stahl et al. Jun 1978 A
4102453 Carroll et al. Jul 1978 A
4105117 Atkin et al. Aug 1978 A
4106623 Carroll et al. Aug 1978 A
4106624 Thurman Aug 1978 A
4106625 Carroll et al. Aug 1978 A
4109791 Clipson et al. Aug 1978 A
4113329 Thurman Sep 1978 A
4189052 Carroll et al. Feb 1980 A
4194626 Boller Mar 1980 A
4211327 Stahl et al. Jul 1980 A
D258050 Cornou Jan 1981 S
4247004 Bird Jan 1981 A
4316154 Krause Feb 1982 A
4316540 Lapham Feb 1982 A
4320837 Carroll et al. Mar 1982 A
4391369 Stahl et al. Jul 1983 A
4423813 Kreeger et al. Jan 1984 A
4426001 Stahl et al. Jan 1984 A
4440302 Ehrman et al. Apr 1984 A
4466541 Tabler et al. Aug 1984 A
4520928 Wilson Jun 1985 A
4523681 Kreeger Jun 1985 A
4573577 Miller Mar 1986 A
4577759 Kreeger Mar 1986 A
4600103 Tabler Jul 1986 A
4601393 Veenman et al. Jul 1986 A
RE32223 Kreeger et al. Aug 1986 E
4619366 Kreeger Oct 1986 A
4619371 Rehrig Oct 1986 A
4643310 Deaton et al. Feb 1987 A
4671411 Rehrig et al. Jun 1987 A
D292634 Chabot Nov 1987 S
4759451 Apps Jul 1988 A
4848578 Schafer Jul 1989 A
4863062 Holliday Sep 1989 A
4905833 Kreeger et al. Mar 1990 A
4936458 Tabler et al. Jun 1990 A
4947992 Schafer Aug 1990 A
4960207 Tabler et al. Oct 1990 A
4982844 Madan et al. Jan 1991 A
5035326 Stahl Jul 1991 A
D319908 Stahl Sep 1991 S
D320298 Apps et al. Sep 1991 S
5096085 Eek et al. Mar 1992 A
5163587 Apps et al. Nov 1992 A
D343042 Apps et al. Jan 1994 S
D344387 Holliday Feb 1994 S
5287966 Stahl Feb 1994 A
D348138 Lang-Ree et al. Jun 1994 S
D348342 Lang-Ree et al. Jun 1994 S
D348343 Lang-Ree et al. Jun 1994 S
D350028 Apps Aug 1994 S
D350437 Apps et al. Sep 1994 S
5344021 Rose Sep 1994 A
5344022 Stahl Sep 1994 A
5372257 Beauchamp et al. Dec 1994 A
D354167 Stahl Jan 1995 S
5377858 Morris, Sr. Jan 1995 A
5392915 Kalin Feb 1995 A
5415293 Ackermann et al. May 1995 A
5469986 Jang Nov 1995 A
5494163 Apps Feb 1996 A
D374555 McMath Oct 1996 S
5582296 Beauchamp et al. Dec 1996 A
5609254 Loftus et al. Mar 1997 A
5617953 Cope Apr 1997 A
D379718 Raghunathan Jun 1997 S
D381203 Ackermann et al. Jul 1997 S
D382404 Cope Aug 1997 S
D384975 Jackson Oct 1997 S
5735431 LeTrudet Apr 1998 A
5752602 Ackermann et al. May 1998 A
5772033 Loftus et al. Jun 1998 A
D398448 Zanni Sep 1998 S
D400711 Hwang Nov 1998 S
D401066 Ackermann Nov 1998 S
D401412 LeTrudet Nov 1998 S
5860527 Frankenberg et al. Jan 1999 A
5881902 Ackermann Mar 1999 A
5896987 Bettenhausen Apr 1999 A
5924572 Cope Jul 1999 A
5975324 Schmitt Nov 1999 A
5992673 Hwang Nov 1999 A
6015056 Overholt et al. Jan 2000 A
D420219 Elvin-Jensen et al. Feb 2000 S
6036049 Hwang Mar 2000 A
D423217 Varfeldt Apr 2000 S
D424299 Varfeldt May 2000 S
6059114 Loftus May 2000 A
6089373 Cope Jul 2000 A
D429565 Aiken Aug 2000 S
6098827 Overholt et al. Aug 2000 A
6138863 Aiken Oct 2000 A
D436729 Aiken Jan 2001 S
D439049 Koefelda Mar 2001 S
6209742 Overholt et al. Apr 2001 B1
6250490 Loftus Jun 2001 B1
6260706 Koefelda Jul 2001 B1
D446017 Koefelda Aug 2001 S
D446392 Overholt et al. Aug 2001 S
D446939 Koefelda Aug 2001 S
6273259 Stahl Aug 2001 B1
6293418 Ogden et al. Sep 2001 B1
6308858 Koefelda Oct 2001 B1
D452614 Overholt Jan 2002 S
6338181 Hwang Jan 2002 B1
6386388 Overholt May 2002 B1
6394274 Cheeseman May 2002 B1
D458753 Overholt et al. Jun 2002 S
6398054 Overholt et al. Jun 2002 B1
6405888 Overholt et al. Jun 2002 B1
6409041 Overholt et al. Jun 2002 B1
D460619 Koefelda Jul 2002 S
D463667 Hwang Oct 2002 S
6460717 Smyers et al. Oct 2002 B1
D478421 Overholt et al. Aug 2003 S
6601724 Koefelda et al. Aug 2003 B1
6607199 Gruber Aug 2003 B2
6631822 Overholt Oct 2003 B1
D487634 Apps et al. Mar 2004 S
6843386 Raghunathan et al. Jan 2005 B2
6857642 Gruber Feb 2005 B2
6863180 Apps et al. Mar 2005 B2
6880705 Otting et al. Apr 2005 B2
6886710 Verna et al. May 2005 B2
6899242 Overholt et al. May 2005 B2
6918502 Overholt et al. Jul 2005 B1
6918508 Hwang Jul 2005 B2
6938772 Aiken et al. Sep 2005 B2
6994216 Wong Feb 2006 B2
7014043 Raghunathan et al. Mar 2006 B2
7017745 Raghunathan Mar 2006 B2
7017766 Hsu et al. Mar 2006 B2
7044319 Overholt et al. May 2006 B2
7048134 Hagan May 2006 B1
7048135 Smyers et al. May 2006 B2
7059489 Apps et al. Jun 2006 B2
7063210 Smyers et al. Jun 2006 B2
7086555 Overholt et al. Aug 2006 B2
7100786 Smyers Sep 2006 B2
7104414 Apps et al. Sep 2006 B2
7104553 Gruber Sep 2006 B2
7128231 Overholt Oct 2006 B2
7195127 Hsu et al. Mar 2007 B2
7234599 Hassell et al. Jun 2007 B2
7249675 Hassell et al. Jul 2007 B2
7264122 Koefelda et al. Sep 2007 B2
20020056717 Hwang May 2002 A1
20020130132 Overholt Sep 2002 A1
20020148842 Overholt et al. Oct 2002 A1
20020153682 Gruber Oct 2002 A1
20020158067 Overholt et al. Oct 2002 A1
20020179480 Raghunathan et al. Dec 2002 A1
20030024845 Smyers et al. Feb 2003 A1
20030042255 Smyers et al. Mar 2003 A1
20030116564 Overholt et al. Jun 2003 A1
20030132228 Apps et al. Jul 2003 A1
20030155275 Apps et al. Aug 2003 A1
20030222081 Apps et al. Dec 2003 A1
20030230510 Aiken et al. Dec 2003 A1
20040020821 Koefelda et al. Feb 2004 A1
20040050742 Gruber Mar 2004 A1
20040060844 Stahl Apr 2004 A1
20040069780 Apps et al. Apr 2004 A1
20040099662 Overholt May 2004 A1
20040104231 Hassell et al. Jun 2004 A1
20040144680 Stahl Jul 2004 A1
20040155048 Aiken Aug 2004 A1
20040178197 Hsu et al. Sep 2004 A1
20040182858 Smyers Sep 2004 A1
20040195139 Wong Oct 2004 A1
20040226945 Hsu et al. Nov 2004 A1
20040245142 Raghunathan Dec 2004 A1
20050140107 Gruber Jun 2005 A1
20050183980 Fernandez et al. Aug 2005 A1
20050224385 Hassell et al. Oct 2005 A1
20050263423 Hassell et al. Dec 2005 A1
20050263424 Hassell et al. Dec 2005 A1
20060011627 Overholt et al. Jan 2006 A1
20060065567 Hassell et al. Mar 2006 A1
20060070906 Verna et al. Apr 2006 A1
20060096883 Raghunathan et al. May 2006 A1
20060108372 Aiken et al. May 2006 A1
20060118450 Stahl Jun 2006 A1
20060180491 Zephir et al. Aug 2006 A1
20060186123 Baltz et al. Aug 2006 A1
20060196800 Baltz Sep 2006 A1
20060231449 Hassell et al. Oct 2006 A1
20060231555 Smyers et al. Oct 2006 A1
20060237341 McDade Oct 2006 A1
20070056874 Apps et al. Mar 2007 A1
20070144931 McTavish et al. Jun 2007 A1
20070175790 Fernandez et al. Aug 2007 A1
20070187276 Stahl Aug 2007 A1
Foreign Referenced Citations (64)
Number Date Country
892971 Feb 1972 CA
1273881 Sep 1990 CA
2032012 Jun 1991 CA
2129617 Feb 1995 CA
2130973 Mar 1995 CA
2212239 Aug 1996 CA
2484830 Aug 1996 CA
2313137 Jul 1999 CA
2296895 Jul 2000 CA
2326118 May 2001 CA
2387491 May 2001 CA
2389010 May 2001 CA
2392265 Jun 2001 CA
2395367 Jul 2001 CA
2397522 Aug 2001 CA
2406099 Oct 2001 CA
2408247 Nov 2001 CA
2384941 Jan 2002 CA
2421595 Mar 2002 CA
2426949 May 2002 CA
2367649 Jul 2002 CA
2442723 Oct 2002 CA
2455355 Feb 2003 CA
2458773 Mar 2003 CA
2472360 Jul 2003 CA
2475531 Sep 2003 CA
2485544 Dec 2003 CA
2448920 Jul 2004 CA
2431444 Dec 2004 CA
3511321 Oct 1986 DE
3521894 Jan 1987 DE
20002537 Jun 2001 DE
0368713 May 1990 EP
370771 May 1990 EP
0557002 Aug 1993 EP
697341 Feb 1996 EP
926073 Jun 1999 EP
953509 Nov 1999 EP
1131652 Feb 1957 FR
2678585 Jan 1993 FR
2067167 Jul 1981 GB
2124588 Feb 1984 GB
2129401 May 1984 GB
2137167 Oct 1984 GB
2141778 Jan 1985 GB
2171980 Sep 1986 GB
2180821 Apr 1987 GB
2209737 May 1989 GB
2296009 Jun 1996 GB
2333285 Jul 1999 GB
2340485 Feb 2000 GB
2350350 Nov 2000 GB
2373239 Sep 2002 GB
2374859 Oct 2002 GB
2373240 Jan 2008 GB
7905105 Dec 1980 NL
338405 Aug 1998 TW
372539 Oct 1999 TW
9801352 Jan 1998 WO
0027716 May 2000 WO
0051900 Sep 2000 WO
0066440 Nov 2000 WO
0185558 Nov 2001 WO
2006062899 Jun 2006 WO
Related Publications (1)
Number Date Country
20080296194 A1 Dec 2008 US