IP Library Granted Patent US 7,121,422
Granted Patent B2
US 7,121,422 · App. 10/277,010 · Granted Oct 17, 2006

Disposable plate having improved ergonomics

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Quick Facts
Patent No.
US 7,121,422
App. No.
10/277,010
Granted
Oct 17, 2006
Kind
B2
Abstract

A disposable plate for carrying and serving food is disclosed. One particular aspect of the invention includes a plate with a substantially circular food-contact area with a substantially oval rim periphery. The rim is formed to make the plate easy to hold, with grooves adapted to accommodate fingers and/or thumbs. The present invention may be designed to segment the food storage areas of the plate into multiple compartments by using a divider wall. Also, the food-contact area can be slightly domed to force food to shift to the outer portion of the food-contact area and inhibit the food from slipping to the middle of the plate, thus keeping the plate center from sagging.

Claims (46)

1. A disposable plate comprising:

a substantially circular base;

an oval rim having an oval outer edge and an inner edge, the rim comprising a pair of opposing handles positioned between the inner and outer edges, wherein each handle has at least one depression for facilitating grasping of the plate, the rim further having a vertical downturn flange extending downward and outward from the entire periphery of the outer edge of the rim, wherein a portion of the rim cooperates with the flange to define an annular cavity below an underside of the rim; and

a sidewall comprising a lower circular edge integral with a peripheral edge of the base and a substantially oval upper edge integral with the inner edge of the rim,

wherein the plate is disposable and formed from a material selected from the group consisting of plastics including thermoplastics and thermosets.

2. The disposable plate of claim 1 wherein the handle has an inner periphery that is adjacent the upper sidewall edge, the inner periphery having a continuous convex configuration when viewed from a vantage point located within the base.

3. The disposable plate of claim 1 wherein the oval rim has a major axis and a minor axis, wherein each handle is positioned on the major axis.

4. The disposable plate of claim 1 wherein at least one of the opposing handles comprises an angled gusset at the transition of the sidewall to the handles to increase structural rigidity of the area.

5. The disposable plate of claim 1 wherein an internal angle between the sidewall and the base is in the range of from 90 degrees to less than 180 degrees.

6. The disposable plate of claim 1 further comprising:

a divider wall dividing the planar base to form a plurality of asymmetrical plate compartments.

7. The disposable plate of claim 1 wherein the flange has a terminal edge positioned below the upper edge of the sidewall.

8. The disposable plate of claim 6 wherein the divider wall has a curvilinear configuration.

9. The disposable plate of claim 8 wherein the divider wall has two opposed ends, each of said two ends mating with a sidewall portion at a major axis of the outer rim edge.

10. The disposable plate of claim 1 wherein the handle has a continuous concave inner periphery when viewed from a vantage point located within the handle.

11. A disposable plastic plate comprising:

a substantially planar circular base;

a rim having an oval outermost periphery, a pair of opposing handles positioned inward of the outermost periphery, a flange downwardly depending from the entire outermost rim periphery, and an inner edge interior to the flange and disposed about the entire rim; and

a sidewall comprising a lower portion integral with the base and a upper portion integral with the inner edge of the rim, wherein the lower portion is circular at an edge integral with the base and the upper portion is substantially oval at an edge integral with the inner edge of the rim;

wherein the flange has a terminal edge positioned below both the inner edge of the rim and an upper edge of the sidewall.

12. The disposable plate of claim 11 , wherein a portion of the rim cooperates with the flange to define an annular cavity positioned below an underside of the rim.

13. The disposable plate of claim 11 , wherein the sidewall forms an internal angle with the base, and wherein the internal angle at a major axis of the inner rim edge is less than the internal angle at a minor axis of the inner rim edge.

14. A disposable plate comprising:

a substantially planar circular base;

a rim having an oval outer periphery with a first major axis, the rim further having a substantially oval inner edge with a second major axis that is aligned with the first major axis, the rim further having a pair of opposing depressed handles positioned along the first and second major axes, the rim further having a flange depending downward from the entire outer rim periphery; and

a sidewall extending between the base and the rim;

wherein the plate is disposable and formed from a material selected from the group consisting of plastics including thermoplastics and thermosets.

15. The disposable plate of claim 14 , wherein the sidewall forms an internal angle with the base and wherein the internal angle increases outward moving along the sidewall from an area proximate a minor axis of the oval rim toward an area of the sidewall proximate the first and second major axes of the oval rim.

16. The disposable plate of claim 14 , wherein the sidewall and the base define an internal angle, and wherein the internal angle at the first major axis is less than the internal angle at a minor axis of the rim.

17. The disposable plate of claim 16 , wherein sidewall has an intermediate region between the first major axis and the minor axis, and wherein the internal angle at a portion of the intermediation region is greater than the internal angle at the first major axis.

18. The disposable plate of claim 16 , wherein sidewall has an intermediate region between the first major axis and the minor axis, and wherein the internal angle at a portion of the intermediation region is greater than the internal angle at the minor axis.

19. A disposable plastic plate comprising:

a circular base;

a sidewall extending upward from the periphery of the base; and,

a rim extending outward from the sidewall, the rim having an inner edge integral with the sidewall, an oval outer edge and a pair of opposed handles positioned radially inward of the outer edge, wherein each handle is positioned on a major axis of the outer rim edge;

wherein an extent of the sidewall and inner edge proximate each handle extends radially inward to define an internal sidewall protrusion with a continuous convex configuration when viewed internally from a center of the base.

20. The disposable plastic plate of claim 19 , the sidewall having a height that remains constant throughout the sidewall, including at the sidewall protrusion.

21. The disposable plastic plate of claim 19 , wherein each handle includes a depression.

22. The disposable plastic plate of claim 19 , the rim further comprising a flange that depends downward from the entire outer edge of the rim.

23. The disposable plastic plate of claim 19 , wherein the base has at least one tactile member.

24. The disposable plastic plate of claim 23 , wherein the tactile member is positioned radially inward of a base periphery and the tactile member comprises a plurality of raised projections.

25. A disposable plastic plate comprising:

a substantially planar circular base;

a rim having an oval outermost periphery, a pair of opposing handles positioned inward of the outermost periphery, a flange downwardly depending from the entire outermost rim periphery, and an inner edge interior to the flange and disposed about the entire rim; and

a sidewall comprising a lower portion integral with the base and a upper portion integral with the inner edge of the rim, wherein the sidewall forms an internal angle with the base, and wherein the internal angle at a major axis of the inner rim edge is less than the internal angle at a minor axis of the inner rim edge;

wherein the flange has a terminal edge positioned below both the inner edge of the rim and an upper edge of the sidewall.

Assignments (18)
RELEASE OF SECURITY INTEREST Recorded Apr 7, 2023
From: BANK OF AMERICA, N.A.
To: HOFFMASTER GROUP, INC.
Reel/Frame 063269/0242 →
RELEASE OF SECURITY INTEREST Recorded Jan 30, 2019
From: WILMINGTON TRUST (LONDON) LIMITED
To: SOLO CUP OPERATING CORPORATION
Reel/Frame 048184/0831 →
RELEASE OF SECURITY INTEREST Recorded Jan 30, 2019
From: WILMINGTON TRUST (LONDON) LIMITED
To: SOLO CUP OPERATING CORPORATION
Reel/Frame 048184/0904 →
RELEASE OF SECURITY INTEREST Recorded Jan 30, 2019
From: WILMINGTON TRUST (LONDON) LIMITED
To: SOLO CUP OPERATING CORPORATION
Reel/Frame 048184/0931 →
RELEASE OF SECURITY INTEREST Recorded Jan 30, 2019
From: WILMINGTON TRUST (LONDON) LIMITED
To: SOLO CUP OPERATING CORPORATION
Reel/Frame 048185/0106 →
SECURITY INTEREST Recorded Jul 21, 2014
From: SOLO CUP OPERATING CORPORATION
To: WILMINGTON TRUST (LONDON) LIMITED
Reel/Frame 033372/0098 →
SECURITY INTEREST Recorded Jul 21, 2014
From: SOLO CUP OPERATING CORPORATION
To: WILMINGTON TRUST (LONDON) LIMITED
Reel/Frame 033372/0126 →
SECURITY AGREEMENT Recorded Jan 7, 2013
From: SOLO CUP OPERATING CORPORATION
To: WILMINGTON TRUST (LONDON) LIMITED
Reel/Frame 029581/0030 →
SECURITY AGREEMENT Recorded Jan 7, 2013
From: SOLO CUP OPERATING CORPORATION
To: WILMINGTON TRUST (LONDON) LIMITED
Reel/Frame 029581/0001 →
RELEASE OF SECURITY INTEREST Recorded May 21, 2012
From: U.S. BANK NATIONAL ASSOCIATION
To: SOLO CUP OPERATING CORPORATION; SOLO CUP COMPANY; SF HOLDINGS GROUP, INC.; SOLO MANUFACTURING LLC; P.R. SOLO CUP, INC.; LILY-CANADA HOLDING CORPORATION; SOLO CUP OWINGS MILLS HOLDINGS
Reel/Frame 028244/0109 →
SECOND LIEN INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Aug 7, 2009
From: SOLO CUP OPERAING CORPORATION; SOLO CUP COMPANY; SF HOLDINGS GROUP, INC.; SOLO MANUFACTURING LLC; P.R. SOLO CUP, INC.; LILY-CANADA HOLDING CORPORATION; SOLO CUP OWINGS MILLS HOLDINGS
To: BANK OF AMERICA, N.A.
Reel/Frame 023065/0131 →
AMENDED AND RESTATED SECOND LIEN IP SECURITY RELEASE AGREEMENT Recorded Aug 4, 2009
From: BANK OF AMERICA, N.A.
To: SOLO CUP COMPANY; SOLO CUP INVESTMENT CORPORATION; P.R. SOLO CUP, INC.; SF HOLDINGS GROUP, INC.; LILY-CANADA HOLDING CORPORATION; SOLO CUP OPERATING CORPORATION F/K/A SWEETHEART CUP COMPANY; SOLO MANUFACTURING LLC
Reel/Frame 023044/0281 →
INTELLECTUAL PROPERTY SECURITY RELEASE AGREEMENT Recorded Aug 3, 2009
From: BANK OF AMERICA, N.A.
To: SOLO CUP COMPANY; SOLO CUP INVESTMENT CORPORATION; P.R. SOLO CUP, INC.; SF HOLDINGS GROUP, INC.; LILY-CANADA HOLDING CORPORATION; SOLO CUP OPERATING CORPORATION F/K/A SWEETHEART CUP COMPANY
Reel/Frame 023032/0641 →
FIRST LIEN INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Jul 2, 2009
From: SOLO CUP OPERATING CORPORATION
To: U.S. BANK NATIONAL ASSOCIATION
Reel/Frame 022910/0054 →
SECOND LIEN INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Apr 20, 2006
From: SOLO CUP COMPANY; SOLO CUP INVESTMENT CORPORATION; SOLO MANAGEMENT COMPANY; P.R. SOLO CUP, INC.; SF HOLDINGS GROUP, INC.; SOLO MANUFACTURING LLC; LILY-CANADA HOLDING CORPORATION; SOLO CUP OPERATING CORPORATION
To: BANK OF AMERICA, N.A.
Reel/Frame 017492/0618 →
MERGER Recorded Dec 13, 2005
From: SOLO CUP COMPANY
To: SOLO CUP OPERATING CORPORATION
Reel/Frame 016883/0746 →
SECURITY INTEREST Recorded Apr 19, 2004
From: SOLO CUP COMPANY; SOLO CUP INVESTMENT CORPORATION; SOLO CUP COMPANY; SOLO MANAGEMENT COMPANY; SOLO TEXAS, LLC; P.R. SOLO CUP, INC.; SF HOLDINGS GROUP, INC.; SWEETHEART HOLDINGS INC.; SWEETHEART CUP COMPANY INC.; LILY-CANADA HOLDING CORPORATION; CUPCORP, INC.; EMERALD LADY INC.; NEWCUP, LLC
To: BANK OF AMERICA, N.A.
Reel/Frame 015209/0247 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 26, 2002
From: GITSCHLAG, JOHN STEWART; SMITH, STEPHEN ALAN; JOINES, JR., JAMES TAM; HEALY, KIMBERLY VAILE; WIEDMEYER, WARREN GILES; RUTTER, BRYCE G.; LOUDENSLAGER, JOHN HOWARD; BRUCE, RYAN J.; BONE, BRIAN C.; STILLERMAN, JAN R.
To: SOLO CUP COMPANY
Reel/Frame 013538/0329 →