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:
Jul. 23, 1985
Filed:
Feb. 24, 1983
Applicant:
Inventors:
Muljadi Santoso, Leominster, MA (US);
John N Anderson, Monroe, CT (US);
Assignee:
Raymark Industries, Inc., Trumbull, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428421 ; 428422 ; 428463 ; 523152 ; 523153 ; 523159 ; 524456 ; 524545 ; 524546 ;
Abstract
A wet friction material composition for use in clutches, brakes and the like is composed of a resilient binder comprising a fluoroelastomer. The friction material is characterized by containing a significant amount of wollastonite as a filler, which unexpectedly alters the ratio between the dynamic and static coefficients of friction exhibited by the friction material during actual use.