Paper-based cooking container providing improved product browning

Patent metadata

Field	Value
Publication number	US-9707730-B1
Application number	US-81090007-A
Country	US
Kind code	B1
Filing date	Jun 7, 2007
Priority date	Jun 8, 2006
Publication date	Jul 18, 2017
Grant date	Jul 18, 2017

Abstract

A paper-based cooking container providing improved product browning is disclosed, wherein the container includes a base, a sidewall and, optionally, a rim, and wherein a portion of the base has been modified through densification of the paper-based material. The container preferably includes both densified and undensified paper-based material.

First claim

What is claimed is:

1. A cooking container comprising a paper-based material that includes a base and a sidewall, at least a portion of the base being densified to a point density range of about 12.5 lbs/r.c.p. to about 14 lbs/r.c.p., and at least a portion of the sidewall having a point density range of about 9 lbs/r.c.p. to about 11 lbs/r.c.p.

2. The container of claim 1 further comprising a rim.

3. The container of claim 1 wherein the container acts as both cookware and a serving container.

4. The container of claim 3 wherein the serving container also acts as a closeable carryout container.

5. The container of claim 1 wherein at least a portion of the base being densified to a point density range of about 13 lbs/r.c.p. to about 14 lbs/r.c.p.

6. The cooking container of claim 1 , wherein the paper-based material is paperboard.

7. A method of manufacturing a cooking container including a base component and a sidewall component, the method comprising steps of:
(a) providing a paper-based blank;
(b) densifying at least a portion of the paper-based blank that is corresponded to the base component such that the densified portion of the base component has a point density range of about 12.5 lbs/r.c.p. to about 14 lbs/r.c.p. while leaving at least a portion of the paper-based blank at a point density range of about 9 lbs/r.c.p to about 11 lbs/r.c.p.; and
(c) forming the blank obtained from step b into the container.

8. The method of claim 7 wherein the densifying step (b) is performed such that the densified portion of the base component has a point density range of about 13 lbs/r.c.p. to about 14 lbs/r.c.p.

9. The method of claim 7 wherein the densifying step (b) is performed such that the densified portion of the blank has a point density about 20% to 30% higher than a point density of a portion not being densified.

10. A method of manufacturing a cooking container including steps of:
(a) providing a paper-based blank;
(b) forming the paper-based blank into a container shape that comprises a base component and a sidewall component; and after said forming step
(c) densifying at least a portion of the base component such that the densified portion has a point density range of about 12.5 lbs/r.c.p. to about 14 lbs/r.c.p.

11. The method of claim 10 wherein the densifying step (c) is performed such that the densified portion of the base component has a point density range of about 13 lbs/r.c.p. to about 14 lbs/r.c.p.

12. The method of claim 10 wherein the densifying step (c) is performed such that the densified portion of the base component has a point density about 20% to 30% higher than a point density of a portion not being densified.

Assignees

• Calvert Barry G
• Broce G Mervin
• Westrock Mwv Llc

Inventors

• Calvert Barry G
• Broce G Mervin

Classifications

• B31B43/00 Primary

  Operations & Transport · mapped topic

• B21D51/18

  vessels, e.g. tubs, vats, tanks, sinks, or the like · CPC title

• A47J37/044 Primary

  with conveyors moving in a horizontal or an inclined plane (A47J37/045, A47J37/046 take precedence) · CPC title

• A47J36/022 Primary

  Cooking- or baking-vessels or supports thereof for using only once (eating- or serving-plates for using only once A47G19/02) · CPC title

• B31B50/59

  Shaping sheet material under pressure (by folding B31B50/26; embossing B31B50/88) · CPC title