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. 20, 2004
Filed:
Dec. 03, 2001
Applicant:
Inventor:
Roland Martin, Aalen, DE;
Assignee:
Dr. Ing. h.c.F. Porsche AG, Weissach, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 3/580 ;
U.S. Cl.
CPC ...
C04B 3/580 ;
Abstract
A friction body of porous carbon, which is infiltrated with silicon and reinforced with carbon fibers, includes at least one separate friction layer on a core body. In order to protect the friction layer against damage by outbreaking, carbon fibers in the friction layer are shorter than carbon fibers of the core body. Accordingly, different possibilities for producing a friction body with short fibers in the friction layer are possible.