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:
Aug. 11, 1986
Applicant:
Inventors:
Karsten Fahner, Cologne, DE;
Friedrich Johannaber, Lohmar, DE;
Hans-Werner Depcik, Duesseldorf, DE;
Axel Kaminski, Wermelskirchen, DE;
Rudiger Van Hooren, Krefeld, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen-Bayerwerk, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01B / ;
U.S. Cl.
CPC ...
252511 ; 252512 ; 252518 ; 252521 ; 252500 ; 26432818 ; 264104 ; 264105 ; 524496 ; 428367 ; 428401 ; 428439 ; 428452 ;
Abstract
By means of a piston-like movement, solid fillings, for example of mineral fibers or steel wool, introduced in the pressureless zone of a screw are incorporated in the molten plastic and the resulting mixture formed in a mold. The finished molding contains numerous fillings greater than 2 mm in length which inter alia contribute significantly towards improving its strength.