The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 27, 1993
Filed:
Sep. 04, 1990
Gary A Baum, Appleton, WI (US);
James River Corporation of Virginia, Richmond, VA (US);
Abstract
A product press formed from a paperboard and a method for forming the same is provided, wherein the product includes a press formed three-dimensional curvilinear region having a desired shape and containing a formation improvement structure for facilitating the press formation and maintenance of the desired product shape and for preventing the machine directionality of the paperboard from distorting the product from its desired shape. The press formed paperboard product of the preferred embodiment comprises a planar wall having a periphery which is at least partially curvilinear and a peripheral wall angularly oriented with respect to the planar wall. The peripheral wall extends along at least a portion of the curvilinear periphery of the planar wall and the closest portion of the peripheral wall is spaced a substantial radial distance from the periphery of the planar wall. The press formed three-dimensional curvilinear region extends radially outwardly from the curvilinear periphery of the planar wall while simultaneously curving out of the plane defined by the planar wall. The formation improvement structure includes a peripherally extending crush score line having a substantial directional component extending generally parallel to the curvilinear portion of the periphery of the planar wall. The crush score lines may be circular, sinusoidal or saw tooth shaped.