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:
Nov. 01, 1983
Filed:
Aug. 30, 1982
Applicant:
Inventors:
Michael D Bessette, Storrs, CT (US);
Robert B Jerard, Hanover, NH (US);
Assignee:
Rogers Corporation, Rogers, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D / ;
U.S. Cl.
CPC ...
264 464 ; 249 63 ; 249 64 ; 249 83 ; 249117 ; 249122 ; 249175 ; 264 469 ; 264 50 ; 264D / ; 425 / ; 425127 ; 425543 ; 4258 / ;
Abstract
Improved mold structure and method of molding for mechanically frothed urethane foams is presented. The mold is filled from the bottom via an annular runner which communicates with the mold cavity. The connection between the annular runner and the mold cavity is restricted to create a back pressure in the circumferential runner.