Boliven Patents - US6663927: Heat insulating paper cups

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US6663927: Heat insulating paper cups

Filing Information

Inventor(s)	Michael A. Breining · William R. Pucci · David C. Brown · Richard A. Segan · Donald C. McCarthy · Walter Malakhow ·
Assignee(s)	Fort James Corporation · View assignee updates
Attorney/Agent(s)	Finnegan, Henderson, Farabow, Garrett & Dunner, LLP ·
Primary Examiner	Sandra M. Nolan ·
Application Number	US10176678
Filing date	06/24/2002
Issue date	12/16/2003
Prior Publication Data	US20020187286 - 12/12/2002
Predicted expiration date	06/06/2017
U.S. Classifications	428/342 · 428/537.5 · 428/365 · 428/159 · 428/349 · 428/511 · 229/403 · 493/84 · 493/93 · 493/95 · 493/96 · 493/99 · 229/400 ·
International Classifications	--
Kind Code	B2
International Classifications	229400 · 229403 · 428 342 · 428 365 · 428159 · 428349 · 428511 · 4285375 · 493 84 · 493 93 · 493 95 · 493 96 · 493 99 ·
Related U.S. Application Data	This is a continuation of application Ser. No. 08/870,486, filed Jun. 6, 1997, now U.S. Pat. No. 6,416,829. which is incorporated herein by reference.

Abstract

A heat insulating paper cup having an improved seal. The cup can include a body member having an inside surface and an outside surface, and a bottom panel member having a upper surface and a bottom surface. The body member is coated (or in some instances partially coated) on its outside surface with a foamed low density polyethylene, and on its inside surface with an unfoamed modified low density polyethylene. The bottom panel member is coated on its upper surface with a foamed or an unfoamed low density polyethylene or foamed or unfoamed modified low density polyethylene. The body member and bottom panel member are oriented and joined to form a heat seal at an interface between a portion of the unfoamed modified low density polyethylene coated on the inside surface of the body member and a portion of unfoamed low density polyethylene or unfoamed modified low density polyethylene coated on the upper surface of the bottom panel member.

Independent Claims | See all claims (5)

1. A heat insulated container comprising a cellulose base and modified low density polyethylene on one surface of the base wherein said low density polyethylene is blended with enough non-low density polyethylene to prevent a laminate of the modified low density polyethylene from foaming at temperatures greater than 240° F.

References Cited

U.S. Patent Documents

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Foreign Patent Documents

Document Number	Assignees	Issue/Pub Date
EPWO9855281		Dec 1998
JP57095436		Jun 1982
JP01094341	FUJI PHOTO FILM CO LTD	Apr 1989
JP6234170		Aug 1994
JP6234173		Aug 1994

* cited by examiner

Referenced By

Document Number	Assignee	Inventors	Issue/Pub Date
US7536767	Prairie Packaging, Inc.	Robert W. Hollis et al.	May 2009
US7121991	Solo Cup Operating Corporation	Dean Joseph Mannlein et al.	Oct 2006
US7195805	Dixie Consumer Products LLC	Michael A. Breining et al.	Mar 2007
US7694843	Prairie Packaging, Inc.	Robert W. Hollis et al.	Apr 2010
USD613554	Solo Cup Operating Corporation	Weston Koennecke	Apr 2010
US7704347	Prairie Packaging, Inc.	Robert W. Hollis et al.	Apr 2010
US7767049	Dixie Consumer Products LLC	Claus E. Sadlier	Aug 2010
USD624788	Solo Cup Operating Corporation	Weston Koennecke	Oct 2010
US7814647	Prairie Packaging, Inc.	Robert W. Hollis et al.	Oct 2010
US7818866	Prairie Packaging, Inc.	Robert W. Hollis et al.	Oct 2010
US7117066	Solo Cup Operating Corporation	Dean Joseph Mannlein et al.	Oct 2006
US7552841	Prairie Packaging, Inc.	Robert W. Hollis et al.	Jun 2009
US7918016	Prairie Packaging, Inc.	Robert W. Hollis et al.	Apr 2011
US7918005	Prairie Packaging, Inc.	Robert W. Hollis et al.	Apr 2011
USD639606	Solo Cup Operating Corporation	Weston Koennecke	Jun 2011
US8087147	Prairie Packaging, Inc.	Robert W. Hollis et al.	Jan 2012

Patent Family

Document Number	Assignee	Inventors	Issue/Pub Date
US20020004110	James River Corporation of Virginia	WILLIAM R. PUCCI et al.	Jan 2002
US20020148832	James River Corporation of Virginia	William Pucci et al.	Oct 2002
US20020150705	James River Corporation of Virginia	William Pucci et al.	Oct 2002
US20020187286	Fort James Corporation	William Pucci et al.	Dec 2002
US6663927	Fort James Corporation	Michael A. Breining et al.	Dec 2003
US6676586	Fort James Corporation	Michael A. Breining et al.	Jan 2004
US6703090	Fort James Corporation	Michael A. Breining et al.	Mar 2004