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:
Mar. 14, 1989
Filed:
Oct. 05, 1987
Applicant:
Inventor:
Daniel N Kemp, Midland, MI (US);
Assignee:
Dow Corning Corporation, Midland, MI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
4254052 ; 264313 ; 425407 ; 425D / ; 425D / ;
Abstract
A trapped rubber molding apparatus including a die positioned within a fixed-volume, rigid mold, the die being surrounded by an integral solid silicone rubber material which has been cured within the mold at an elevated temperature. The die and mold closure are thermally isolated from the remainder of the mold. The die and the silicone rubber material adjacent thereto are selectively heated and cooled. The opposite end of the mold is selectively heated and cooled. This configuration results in the ability to independently control temperature and pressure on the molded part during the molding process.