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. 07, 1987
Filed:
Nov. 19, 1985
Applicant:
Inventors:
Mitsuhiko Nakagawa, Itami, JP;
Fumiaki Nitto, Itami, JP;
Assignee:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C29C / ; C29C / ; C10M / ; C10M / ;
U.S. Cl.
CPC ...
523157 ; 523149 ; 523156 ; 523158 ; 523159 ; 75231 ; 75232 ; 75233 ; 75246 ; 252 12 ; 252 124 ; 252 126 ; 252 26 ;
Abstract
A friction brake material contains fibers, graphite and a binder. All or part of the graphite is physically combined with one or more metals or alloys which are softer than steel to form a first combination or mixture. A separate combination or mixture is formed to include friction increasing fibers in a binder. Both mixtures are then combined to form the friction brake material which has an ability to cause substantially less creaking noise upon brake application as compared to differently prepared friction brake material.