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:
Apr. 04, 1978
Filed:
Nov. 29, 1976
Applicant:
Inventors:
Franz-Jurgen Brinkschroder, Cologne, DT;
Axel Sandquist, Langenfeld, DT;
Friedrich Johannaber, Lohmar, DT;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29F / ; B29F / ;
U.S. Cl.
CPC ...
425204 ; 366 85 ; 425207 ; 425209 ; 4253 / ; 4258 / ; 425461 ;
Abstract
The invention relates to an apparatus for the extrusion of temperature sensitive thermoplastics to form structural rib-free semi-finished products in contra-rotating driven screws.