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:
Oct. 16, 2001
Filed:
Mar. 19, 1999
James W. Gilfert, Eldreld, PA (US);
Robert W. Crandall, Great Valley, NY (US);
Loren D. Ervay, Olean, NY (US);
Great Northern Corporation, Appleton, WI (US);
Abstract
An improved porous mold for fabricating a formed mold pulp structure to protectively support at least one roll of web material. The mold has a forming surface that contains a first molding cavity surrounded by a periphery. The molding container has sidewalls extending from at least a portion of the periphery into the molding cavity. Within the molding cavity is at least one generally semi-cylindrical hump and land formation areas positioned adjacent the hump and one land formation areas at an end of the hump. A first mold forming surface on the hump is smooth and dished longitudinally such that a transverse cross-section of the first mold forming surface across the hump in the molding cavity is generally concave between the respective sidewalls. The first molding cavity also has a chamfered portion between the hump and an adjacent sidewall and the first molding cavity can have a plurality of humps separated by land formation areas. The porous mold can also have a second molding cavity parallel to the first molding cavity and separated by a longitudinal hinge portion that is coplanar with the periphery of the forming surface.