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:
Jan. 20, 1981
Filed:
Aug. 21, 1978
Applicant:
Inventors:
Josef P Lehnen, Leverkusen, DE;
Gerd Zingelmann, Leverkusen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29F / ;
U.S. Cl.
CPC ...
26432814 ; 2641 / ; 425207 ; 26432817 ;
Abstract
A process for the production of compact, shaped articles from vulcanizable rubber mixtures in powder form by means of a screw plasticizing unit, wherein the powder-form rubber mixture is first introduced through a delivery-active feed pocket into the extruder, subsequently plasticized in a mixing zone, compacted by combining the plasticized rubber particles and subsequently shaped in plasticized and homogenized form, and an apparatus for carrying out the above process.
Lehnen, Josef. (1981). Process and apparatus for molding elastomers (U.S. Patent No. 4246224). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4246224
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile