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:
Sep. 26, 1978
Filed:
Oct. 01, 1976
Applicant:
Inventors:
Joseph Sanson, Beaugency, FR;
Kurt Moser, Kirchheim, DE;
Assignee:
The Upjohn Company, Kalamazoo, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B29D / ;
U.S. Cl.
CPC ...
156 79 ; 156245 ; 156285 ; 264 468 ; 264 90 ; 264 92 ; 264248 ; 264309 ; 264316 ; 264 466 ; 425388 ;
Abstract
A method and apparatus are disclosed for preshaping a sheet material, more particularly a textile and/or a plastic sheet, under differential pressure in a molding die, whereby to form a sack-like structure which becomes integrally incorporated as the cover of a foamed plastic cushion, vehicle seat, protective padding element or similar article, by the introduction of a self-foaming elastomeric material into the sack while it is being held in the molding die.