Beverage and food carrier

Information

  • Patent Grant
  • 6443308
  • Patent Number
    6,443,308
  • Date Filed
    Tuesday, June 26, 2001
    23 years ago
  • Date Issued
    Tuesday, September 3, 2002
    22 years ago
Abstract
A two-piece collapsible carrier for food and beverages. The lower carrier has a bottom and four side walls particularly adapted to carrier beverages in different sized containers. The side walls have uppermost edges higher than the tallest beverage containers to be normally carried. An upper food top having a bottom and side walls is carried over said lower carrier with the bottom of said upper tray resting on the uppermost edges of said lower carrier so that in normal use, the attitudes of the tray and beverage carrier remain the same.
Description




FIELD OF THE INVENTION




The preferred embodiments of this invention relate to inexpensive, disposable carriers for beverages, food and other items.




BACKGROUND OF THE INVENTION




The prior art includes a number of patents that show carriers for food and beverages. Representative prior art carriers are described in the Hunter U.S. Pat. Nos. 5,738,217 and 5,927,502. Although the carriers described in these patents are improvements over other carriers, the Hunter carriers have several significant deficiencies. Thus, cups of various sizes are not easily carried since the Hunter carriers are not designed to carry beverage containers of various sizes and shapes. The Hunter carriers are bottomless so that the beverage cups necessarily touch the stadium ground or floor when the carrier is placed on the ground or floor. And, the Hunter carriers do not insure that the attitude of the food tray remains horizontal. Rather, upward movement of the beverage cups tend to tilt the tray, especially if cups of different sizes are used or the cups are not uniformly distributed in the carrier.




SUMMARY OF THE INVENTION




The preferred embodiments of this invention provide an inexpensive beverage and food carrier having a wide variety of uses. One particular use is in ballparks or stadium to carry food from a food and drink stand to one's seat. A particular feature of this preferred embodiment is that beverage containers of different sizes may be conveniently carried. Thus, the preferred embodiments include a two-piece carrier, formed from only two pieces of cardboard, a lower carrier having a carrying handle and an upper tray for food and like items.




The beverage containers rest upon a bottom provided by four interlocking cardboard flaps. These beverage cups and containers, be they foam, paper, plastic, round, square or otherwise, are thus protected by the carrier bottom from touching the stadium floor. The upper food tray slides over the handle and rests upon the top edges of the side walls forming the lower container.




In the preferred embodiments, the side walls extend upwardly from the container floor higher than the height of the beverage containers, with their top edges supporting the bottom of the food tray. As a result, the attitude of tray is maintained parallel to the beverage carrier.




Another significant advantage of carriers constructed in accordance with the preferred embodiments of this invention is that the carrier as constructed is collapsed for convenient shipping and storing and quickly and easily assembled at the ballpark or football stadium. The collapsed carrier is advantageously only five times the thickness of the sheet of cut material used to form the carrier.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1A

is a perspective view of the lower beverage carrier of one embodiment of the present invention;





FIG. 1B

is a perspective view of the lower beverage carrier shown with beverage containers placed within the carrier;





FIG. 2

is a first side elevation view of the lower beverage carrier;





FIG. 3

is a second side elevational view of the beverage carrier;





FIG. 4

is a third side elevational view of the beverage carrier;





FIG. 5

is a top view of the beverage carrier;





FIG. 6

is a bottom view of the beverage carrier;





FIG. 7

is a top perspective view of the upper food tray;





FIG. 8

is a bottom perspective view of the food tray;





FIG. 9

is a first side elevational view of the food tray;





FIG. 10

is a second elevational view of the food tray;





FIG. 11

is a bottom view of the food tray;





FIG. 12

is a top view of the food tray;





FIG. 13

is a perspective view showing the upper food tray mounted on its lower beverage carrier;





FIG. 14

is an elevational view of the cardboard sheet cut to form the lower beverage carrier;





FIG. 15

is an elevational view of the cardboard sheet cut to form the upper food tray;





FIG. 16

is a side elevational view showing the upper food tray mounted on the lower beverage carrier;





FIG. 17

is a perspective view of the lower beverage carrier in its manufactured collapsed state;





FIG. 18

is a perspective view of the upper food tray in its manufactured collapsed state;





FIG. 19

is a perspective view of the lower beverage carrier of another embodiment of the present invention;





FIG. 20

is another perspective view of the lower beverage carrier of the embodiment of

FIG. 19

;





FIG. 21

is a perspective view showing the embodiment of

FIG. 19 and 20

mounting an upper food tray;





FIG. 22

is an elevational view of the cardboard sheet cut to form the lower beverage carrier of

FIGS. 19-21

;





FIG. 23

is an elevational view of the cardboard sheet cut to form the upper food tray of

FIG. 21

;





FIG. 24

is a perspective view of the lower beverage carrier of still another embodiment of the present invention;





FIG. 25

is another perspective view of the lower beverage carrier of the embodiment of

FIG. 24

;





FIG. 26

is a bottom view of the beverage carrier of

FIGS. 24 and 25

;





FIG. 27

is an elevational view of the cardboard sheet cut to form the lower beverage carrier of

FIGS. 24-26

; and





FIG. 28

is a perspective view of the lower beverage carrier supporting an upper food box.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS




One preferred embodiment of the food and drink carrier constructed in accordance with this invention is shown in FIG.


13


and includes a lower beverage carrier


25


for holding paper or plastic cups or other containers of beverage and an upper food tray


30


supported on the uppermost edges of the outside walls. In the embodiment shown in the figures, the lower carrier has, as best seen in

FIGS. 1A and 1B

, four compartment pockets


35


in which, depending upon their diameter, four or more cups


40


or other containers (see

FIG. 1B

) can be carried.




A feature of this invention is that the lower carrier is adapted to carry any shape or configuration of beverage container normally sold in ball parks and stadiums. Further, although the embodiment shown provides four pockets


35


, it will be apparent that the bottom carrier can be constructed to have fewer or greater number of pockets.




As discussed below and as shown in

FIGS. 1B and 16

, the uppermost edges of the side walls


45


,


46


,


47


,


48


of container


25


are, in the preferred embodiment, higher than the tallest cup


40


that will be normally placed within the container


25


.




The beverage carrier


25


advantageously includes a bottom floor


49


under each of the pockets


35


. This floor is provided by four interlocking bottom flaps.




The lower beverage carrier further includes an integral flat, generally rectangular handle


50


advantageously formed by two thickness of the same cardboard or other sheet material used to construct the lower carrier


25


. An elongate opening


55


allows some of the fingers of one hand to pass through this opening


55


to more easily carry the beverage and food container.




The upper food tray


30


, best shown in

FIGS. 7 and 13

, has a base or bottom


60


that is advantageously larger than the area circumscribed by the side walls


45


,


46


,


47


and


48


of lower carrier


25


. The bottom of food tray


30


includes an elongated slot


61


whose dimensions are somewhat larger than the cross-section of handle


50


. As shown in

FIG. 13

, after the beverage cups are placed within the pockets


35


, the tray


30


is slid down over the handle


50


.




A significant feature of the preferred embodiments of this invention is that the upper food tray


30


is slid down over handle


50


until it rests on the uppermost top edges of the side walls


45


,


46


,


47


and


48


(see FIGS.


13


and


16


). In this manner, the attitude of tray


30


is maintained horizontal with respect to the beverage carrier


25


and is not affected by the height, distribution or quantity of the beverage cups placed in the pockets


35


. Moreover, in the preferred embodiments, the bottoms of the beverage cups advantageously rest on the floor


49


of the lower beverage container. As a result, placing a filled carrier


25


on the floor or seat of a stadium has no effect on the positions of either the beverage containers


40


inside the pockets


35


or the attitude of the tray


30


.




Advantageously, the lower beverage carrier


25


and upper food tray


30


are each cut from a single sheet of suitable cardboard. See

FIGS. 14 and 15

, wherein solid inner lines indicate cut slits in the cardboard sheet and dotted lines indicate creases formed in the cardboard. In the following instructions, the interior faces of each of the side walls of the lower and upper carriers face upwardly in

FIGS. 14 and 15

. By way of specific example, carriers have been constructed in accordance with this invention in which the outside dimensions of the flat cut cardboard of

FIG. 14

measured 36{fraction (27/36)} inches by 16⅜ inches and the outside dimensions of the flat cut cardboard of

FIG. 15

measured


17


inches by


16


inches.




Referring to

FIG. 14

, the lower beverage carrier


25


is constructed by folding the sheet of cut cardboard along the dotted lines as follows: With wall section


48


held flat, wall section


45


is folded upwardly along line


104


to form a crease along line


104


. Likewise, pocket divider member


106


is folded upwardly with respect to section


48


along line


108


but is folded downwardly with respect to handle section


110


along line


112


, leaving creases along lines


108


and


112


. Wall section


47


is folded upwardly with respect to wall section


48


along line


116


to form a crease along line


116


.




Wall section


46


is then held flat and wall section


47


is folded upwardly along line


120


with respect to wall section


46


to form a crease along line


120


. Likewise, a second pocket divider member


122


is folded upwardly with respect to wall section


46


along line


124


, but is folded downwardly with respect to the second handle section


126


along line


128


leaving creases along lines


124


and


128


. In addition, end tab


130


is folded upwardly with respect to section


46


along line


132


. The end tab


130


is also folded with respect to handle section


126


along line


134


such that the end tab portion


138


is raised upwardly with respect to handle section


126


so that the connector


122


and end tab


130


lie in parallel planes with creases formed along lines


132


and


134


.




Attached to wall sections


45


,


48


,


47


and


46


are respective bottom flaps


140


,


142


,


144


and


146


. Each of these flaps are folded upwardly with respect to wall section


45


,


48


, and


47


along respective lines


150


,


152


,


154


and


156


to form creases along these lines.




Bottom flap


142


includes a comer tab portion


160


which is folded downwardly with respect to the remainder of flap


142


along line


162


. Similarly, bottom flap


146


includes a comer tab portion


164


which is also folded downwardly with respect to the remainder of flap


146


along line


166


with creases left along lines


162


,


166


.




The lower container is advantageously manufactured in a collapsed configuration as follows: the sections


45


,


48


,


47


and


46


are folded along creases


104


,


116


,


120


and


124


to form the outside walls of the container. The downwardly facing side of handle section


126


is joined by a suitable glue or adhesive to the upwardly facing side of the handle section


110


wall. The downwardly facing side of end tab


130


is secured by glue or adhesive to the upwardly facing side of section


45


. The upwardly facing surface of tab


160


is joined by glue or adhesive to the downwardly facing side of flap


140


. The upwardly facing surface of tab


164


is joined to the downwardly facing side of flap


144


.




A significant feature of the construction of the bottom flaps


140


,


142


,


144


and


146


is that when the carrier is erected into the configuration shown in

FIG. 1A

, the bottom flaps


140


,


142


,


144


and


146


overlap to form the interlocked bottom surface


49


which supports as many filled beverage containers as can be placed into the carrier. A particular feature of the bottom flaps


140


and


144


is the inclusion of respective notches


170


,


172


. As best shown in

FIGS. 5 and 6

, as the four bottom flaps


140


,


142


,


144


and


146


fold together, the notches


170


,


172


are drawn together to interlock with each other to maintain the carrier in the erected state shown in FIG.


1


A.




The functionality of the foldable carrier is further enhanced by the creases


150


,


152


,


154


,


156


,


162


and


166


which bias the bottom surface upward


49


when the carrier is open. As a result, the weight carrying capacity of the carrier is more than ample for all of the drinks that can be held within the carrier.




Another feature shown in

FIG. 14

, is the wedge shaped portion cut from bottom flaps


140


and


144


. The wedge cut from flap


140


leaves a wedge-shaped space


167


between the edge


168


of flap


40


and the juxtaposed edge of tab


160


. The small wedge shaped portion cut from bottom flap


144


leaves a wedge shaped space


173


between the edge


169


of flap


144


and the juxtaposed edge of tab


164


. These relieved edges


168


,


169


facilitate manufacturing the lower carrier in the collapsed state shown in FIG.


17


. Thus, edge


168


folds into the crease


104


formed between panels


102


and


100


and edge


169


folds into the crease


120


between panels


114


,


118


. The overall thickness of the collapsed beverage carrier shown in

FIG. 17

is substantially only five times the thickness of the cut sheet material used to form the beverage carrier.




The upper food tray


30


is also advantageously cut from a sheet of cardboard in the manner shown in FIG.


15


. The downwardly facing sides of end tabs


200


,


202


,


204


and


206


are respectively glued to the upwardly facing sides of foldable portions


210


,


212


,


214


and


216


. As a result, this food tray is easily manufactured in a collapsed state as shown in

FIG. 18

but is quickly assembled into the food tray


30


. The overall thickness of the collapsed tray shown in

FIG. 18

is substantially only five times the thickness of the cut sheet material used to form the tray.




After the beverages are placed within the lower carrier


25


, the tray slot


61


is easily slipped over the handle


50


until the tray is supported by the top edges of the four walls of the lower carrier as shown in

FIGS. 13 and 16

.




The floor of


60


tray


30


is thus retained horizontal with respect to the floor


49


of the beverage carrier


25


by the top edges of the side walls


45


,


46


,


47


and


48


, so that there is no risk of food spilling out on the ground when the lower carrier is set on the ground.




Another preferred embodiment of the food and drink carrier constructed in accordance with this invention is shown in

FIGS. 19-23

. As shown in these figures, a series of parallel slot pairs


300


,


301


;


305


,


306


; and


310


,


311


are cut in the bottom half of the panels used to form three of the four pockets


35


A of the lower beverage carrier


25


A. These slots extend through respective creases


105


A,


106


A and


12


A between adjacent panels of the lower beverage carrier to form a series of cardboard straps


315


,


316


and


317


serving as cup restraint members to aid in holding beverage containers within the pockets. As shown in

FIG. 20

, these cardboard straps have been pushed into the pockets of the beverage container to produce an interior wedge or restrain for engaging the exterior walls of the beverage container to hold them upright in the lower beverage carrier


25


A.




As shown in

FIG. 19

, these straps, if not needed, can remain flat within the outer walls of the beverage container


25


A. Alternatively, just one or two straps can be pushed into a pocket to aid in restraining beverage carriers against movement and tipping.




Another feature of the lower beverage carrier shown in

FIGS. 19-22

and also

FIGS. 24-27

is an enhanced handle in which panel


110


A is formed with an extra handle flap of cardboard


325


typically one-half inches wide. After the cardboard has been cut as shown in FIG.


22


and folded as shown in

FIGS. 19-21

, the handle flap


325


is folded upwardly to provide an additional thickness of cardboard to provide a stronger handle and makes carrying the beverage carrier more comfortable.




FIGS. 24≧27 illustrate another preferred embodiment of the carrier constructed in accordance with this invention. As shown in

FIGS. 24

,


25


and


27


, an alternate beverage cup restrainer is provided by an inverted trapezoid


400


cut in the bottom half of two adjacent panels. As shown in

FIG. 25

, the inverted trapezoid-shaped piece


400


can be folded in on crease lines


410


,


411


to provide a cardboard flap within pocket


415


of the beverage carrier to restrain the beverage cup from moving or tipping. Also, as shown in

FIG. 24

, when flap


410


is not needed to restrain beverage cups, this flap


410


can remain flat within the outer walls


405


,


406


of the beverage carrier.




It will be apparent that additional flaps


410


can be provided by cutting additional inverted trapezoid-shaped cuts in other adjacent panels.





FIGS. 26 and 27

illustrate an alternate bottom flap having locking notches


450


,


451


for firmly locking the base flaps together when the carrier is assembled for providing additional bottom strength for the carrier.





FIG. 28

illustrates the lower beverage carrier of the invention carrying an upper food box


500


having an elongated slot


510


in both its bottom and top. Typically, box


500


has a cover which substantially covers the top of the box and is used for carrying pizzas, although it will be apparent that it can carry many other food products.




The preferred embodiments of beverage and food carriers of the invention are manufactured from single sheets of cardboard. Suitable cardboard sheets are available in a range of thickness, an exemplary range of thicknesses being 0.016 to 0.028 inches. Thinner thicknesses are normally advantageously used for the upper food tray in which lighter loads are normally carried whereas thicknesses of 0.020 to 0.028 are typically used for the lower beverage carrier for carrying the heavier beverage containers. Typical kinds of cardboard sheets useful for constructing the upper and lower carriers including:




1. Plain Chip or Uncoated;




2. Clay coated for enhanced printing of advertising, coupons, and the like on the surfaces of the containers; and




3. Water resistant coated to provide substantial wet strength to carry spilled and leaking beverage containers.




4. By way of specific example, Riverwood International manufactures such uncoated and coated cardboard sheets under the respective trademarks Kraftsmaster®, Omni-Kote®, Pearl-Kote® and Aqua-Kote®.




The food and beverage containers constructed in accordance with the preferred embodiments of the invention have several significant advantages including:




1. The container is manufactured and shipped collapsed and quickly and easily assembled at the ballpark or football stadium. The collapsed carrier (see e.g.

FIGS. 17 and 18

) is substantially only five times the thickness of the sheet of cut material used to form the lower carrier.




2. The bottom of the beverage containers


40


carried by the carrier are supported by the bottom interlocked flaps of the carrier and are not disturbed when the beverage and food carrier is set on the ground. The beverages are thus protected when the carrier is set on the floor or ground.




3. The upper and lower portions of the food and drink carrier are inexpensively formed from single sheets of cardboard.




In addition to providing a very simple and inexpensive way to manufacture in volume a very useful food and beverage carrier, the preferred embodiments of the invention facilitate the selling of advertising space since the advertising copy can be simply printed on the sheets of

FIGS. 14

,


15


,


22


,


23


and


27


before the sheets are cut. Carriers constructed in accordance with the preferred embodiments of this invention offer a substantial area on the side walls of both the lower and upper carrier for such printed advertising.



Claims
  • 1. An inexpensive, disposable carrier for beverage containers and food which is manufactured in a collapsed state and easily erected before use to provide an upper food tray supported by a lower beverage carrier, comprising:said lower beverage carrier having a bottom and a plurality of compartments adapted to hold beverage containers of various sizes, said lower beverage carrier being formed from a single sheet of cut cardboard and folded to provide four side walls, four interlocking bottom flaps to form a bottom, a handle, two dividers extending from said handle to opposite, juxtaposed side walls to form at least four pockets for holding beverage containers; and a slot cut in adjacent side walls of the carrier to form a cup restraint member in at least one of said compartments; and said upper food tray formed from a single sheet of cut cardboard having a slot slidable over said handle, said tray, when located on said lower beverage carrier, being supported by the top edge of said four side walls of said lower beverage carrier so that said tray remains substantially parallel with respect to said bottom of said lower beverage carrier and above the tops of the tallest of said beverage containers.
  • 2. An inexpensive, disposable carrier for beverage containers and food which is manufactured in a collapsed state and easily erected before use to provide an upper food tray supported by a lower beverage carrier, comprising:a lower beverage carrier having a bottom and a plurality of compartments adapted to hold beverage containers of various sizes, said lower beverage carrier being formed from a single sheet of cut cardboard and folded to provide four side walls, four interlocking bottom flaps to form a bottom, a handle, and at least two dividers extending from said handle to opposite, juxtaposed side walls; and a food tray formed from a single sheet of cut cardboard having a slot slidable over said handle, said tray, when located on said lower beverage carrier, being supported by the top edge of said four side walls of said lower beverage carrier so that said tray remains substantially parallel with respect to said bottom of said lower beverage carrier and above the tops of the tallest beverage container normally carried within said lower carrier.
  • 3. An inexpensive, disposable carrier for beverage containers and food which is manufactured in a collapsed state and easily erected before use to provide an upper food tray supported by a lower beverage carrier, comprising:a lower, collapsible beverage carrier having a bottom and side walls, said lower carrier being cut from a single sheet of material that is creased to fold out to provide said bottom and said side walls; an upper collapsible food tray having a bottom and side walls, said food tray being cut from a single sheet of material that is creased to fold out to provide said bottom and side walls; said side walls of said lower carrier having uppermost edges above the tops of the tallest beverage containers normally carried within said lower carrier; and said upper food tray adapted to be positioned over the lower beverage carrier with the bottom of said tray supported by said uppermost edges of said lower carrier.
  • 4. A carrier for beverage containers and food, comprising:a lower beverage carrier having a bottom and side walls, said side walls having uppermost edges above the tops of the tallest of said beverage containers; wherein said lower carrier is formed from only a single cut sheet of material and said lower carrier is manufactured in a collapsed state which is substantially five times the thickness of said sheet of material; and an upper food carrier having a bottom and side walls, said upper food carrier adapted to be positioned over the lower beverage carrier with the bottom of said upper food carrier supported by said uppermost edges of said lower carrier.
  • 5. The carrier of claim 4, wherein said lower carrier has a bottom and a plurality of compartments adopted to hold beverage containers of various sizes.
  • 6. The carrier of claim 4, wherein said lower carrier is formed from a single sheet of cut cardboard and folded to provide said bottom and said side walls.
  • 7. The carrier of claim 4, wherein said bottom is formed by four interlocking flaps respectively integral with said side walls.
  • 8. The carrier of claim 7, wherein two of said flaps are notched, said notches being interlocked when said carrier is erected.
  • 9. The carrier of claim 4, wherein said upper food carrier is formed from a single cut sheet of material and is collapsible to a width of substantially five times the thickness of said sheet.
  • 10. The carrier of claim 4, wherein said lower carrier has an integral handle formed from two attached layers of said cut sheet.
  • 11. The carrier of claim 10, wherein said upper food carrier has a slot in the bottom thereof through which said handle is inserted to position said upper food tray over said uppermost edges of said lower carrier.
  • 12. The carrier of claim 4, wherein the bottom of said upper food carrier is larger than the bottom of said lower beverage carrier.
  • 13. The carrier of claim 7, wherein two of said bottom flaps are formed with a wedge shaped relief to facilitate erection and collapse of said lower carrier.
  • 14. The carrier of claim 4, wherein in normal use the attitude of the upper carrier is maintained substantially the same as the attitude of the lower carrier.
  • 15. The carrier of claim 5, wherein a series of parallel slots are cut in adjacent side walls of the lower carrier to form a cup restraint strap in at least one of said compartments.
  • 16. The carrier of claim 5, wherein an inverted generally trapezoidal-shaped slot is cut in adjacent side walls of the lower carrier to form a cup restraint flap in at least one of said compartments.
  • 17. The carrier of claim 10, wherein one of said layers includes a flap which is folded over the second of said layers to form an additional thickness for said integral handle.
  • 18. The carrier of claim 4, wherein said material is a sheet of uncoated cardboard.
  • 19. The carrier of claim 4, wherein said material is a sheet of coated cardboard.
  • 20. The carrier of claim 6, wherein said cardboard has a thickness of between 0.020 and 0.028 inches.
  • 21. The carrier of claim 6, wherein said cardboard has a thickness of between 0.016 and 0.028 inches.
  • 22. The carrier of claim 4, wherein said upper food carrier is a tray with a substantially open top.
  • 23. The carrier of claim 4, wherein said upper food carrier is a box having a substantially closable top.
  • 24. The method of making in a collapsed state an easily erected beverage and food carrier having four sides and a bottom comprising:cutting from a single sheet of material four integral carrier sides including two sides having extending handles and four bottom flaps respectively integral with said sides; folding said cut sheet to form a carrier having four side walls and a handle; attaching an end, top and one of said sides to the inside surface of the adjacent side, respectively; attaching tabs on two of said bottom flaps to the underside of adjacent flaps; interlocking said bottom flaps to provide said carrier bottom; cutting from a single sheet of material a tray member having an elongated slot; folding said cut sheet to form a food carrying tray; and placing said handle through said elongated slot.
PRIORITY CLAIM

This application claims the benefit of U.S. Provisional Application No. 60/214,267 filed Jun. 26, 2000, entitled “Beverage And Food Carrier.”

US Referenced Citations (28)
Number Name Date Kind
2728484 Farrington Dec 1955 A
2759629 Sargent Aug 1956 A
2828047 Weiselberg Mar 1958 A
2991908 Conescu Jul 1961 A
3225959 Jamison Dec 1965 A
3565323 Katzenmeyer et al. Feb 1971 A
3744704 Struble Jul 1973 A
3868140 Gordon Feb 1975 A
4053099 Lock Oct 1977 A
4155502 Forte May 1979 A
4744613 Brantingham et al. May 1988 A
4895256 Johnston Jan 1990 A
5249700 Dumke Oct 1993 A
5415277 Berntsen May 1995 A
D367409 Hunter Feb 1996 S
5501338 Preston Mar 1996 A
5524814 Davis Jun 1996 A
5609379 Harrelson Mar 1997 A
5645162 Harrelson Jul 1997 A
5738217 Hunter Apr 1998 A
5765684 Van Dore et al. Jun 1998 A
5788081 Bates Aug 1998 A
5797486 Picciolo Aug 1998 A
5803264 Gersten et al. Sep 1998 A
5813540 Volibrechet et al. Sep 1998 A
5816405 Carriger, Jr. Oct 1998 A
5833056 Goldman Nov 1998 A
5927502 Hunter Jul 1999 A
Provisional Applications (1)
Number Date Country
60/124267 Jun 2000 US