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. 17, 1981
Filed:
Dec. 14, 1979
Applicant:
Inventor:
Philip A Chuluda, Oxford, CT (US);
Assignee:
Raybestos-Manhattan, Incorporated, Trumbull, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D04H / ;
U.S. Cl.
CPC ...
428280 ; 162146 ; 162148 ; 1882 / ; 1921 / ; 428281 ; 428288 ; 428290 ; 428297 ; 428299 ; 428304 ; 428320 ; 428323 ; 428367 ; 428402 ; 428408 ; 428902 ; 428920 ;
Abstract
Paper base friction material in the form of a porous, flexible interfelted fibrous sheet comprised of a mixture of 25 to 65 percent cellulose fibers, 5 to 20 percent carbon fibers, 5 to 20 percent flame-resistant organic fibers, fillers, and an oil resistant elastomeric sizing. The friction material also includes a synthetic resin binder which may be incorporated during preparation of the sheet or subsequently. In use, the paper base friction material is bonded to a supporting member, preferably metal, whereby it is useful as a friction element particularly in oil, such as in automotive automatic transmissions.