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:
Feb. 05, 1980
Filed:
Aug. 19, 1977
Applicant:
Inventors:
Yasunobu Yamamoto, Chiryu, JP;
Ryoichi Tomikawa, Toyota, JP;
Toshiaki Sakabe, Toyota, JP;
Yasuhiro Matsumoto, Toyoake, JP;
Assignee:
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; F16D / ;
U.S. Cl.
CPC ...
156166 ; 1882 / ; 1921 / ; 427401 ; 428443 ;
Abstract
A method of manufacturing a clutch facing including the steps of mixing graphite and phenolic resin to form a graphite mixture, soaking an asbestos fiber string within the mixture, removing the soaked string such that phenolic resin content of between 14-24 weight percents and graphite content of between 1-8 weight percents for every 100 weight percents is produced and bonding the string to the clutch facing such that the Rockwell hardness of the clutch facing is between 20-60 on the Moh scale.