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. 17, 1991
Filed:
Nov. 28, 1989
Applicant:
Inventor:
Jurgen Hempel, Weinheim, DE;
Assignee:
Firma Carl Freudenberg, Weinheim an der Bergstrasse, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264103 ; 264173 ; 264174 ; 2642092 ; 2642096 ; 264236 ; 264312 ; 425113 ; 425381 ; 4253823 ;
Abstract
A method of producing a thread-reinforced, extruded rubber body by a shear head wherein the threads are continuously supplied, embedded in a rubber mixture which is in a continuous forward motion and fixed in the rubber body by vulcanizing the rubber mixture. The method is such that the reinforcing threads are helically twisted in the finished rubber body. The rubber body is thus reinforced not only in longitudinal direction but also additionally in circumferential direction.