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:
Dec. 11, 1990
Filed:
Nov. 23, 1988
Applicant:
Inventors:
Fritz Irrgeher, Leverkusen-Hitdorf, DE;
Frank Schwarze, Cologne, DE;
Assignee:
Irbit Research & Consulting AG, Fribourg, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
4283144 ; 277228 ; 404 64 ; 404 66 ; 428 57 ; 428 58 ; 4283166 ; 4283227 ;
Abstract
The present invention relates to a sealing element of foam of delayed elastic resilience as a result of impregnation, in which, in order to obtain improved properties, on each cross-sectional plane (2) the delayed resilience is inherent in only a part of the elastically resilient volume and the remaining part (4) of the elastically resilient volume consists of closed-cell foam.