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. 10, 1990
Filed:
Jun. 26, 1986
Applicant:
Inventors:
Katsumi Kotegawa, Osaka, JP;
Makoto Kanehira, Osaka, JP;
Kiyofumi Suzuki, Osaka, JP;
Shinichi Hayashi, Osaka, JP;
Hidekazu Adachi, Osaka, JP;
Assignee:
Tsubakimoto Chain Co., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C / ;
U.S. Cl.
CPC ...
384127 ; 384564 ; 384586 ;
Abstract
A roller chain having plural bearing rollers located around the outer-periphery of a bushing, rollers surrounding the plural bearing rollers and thrust rings located at the gaps between rollers and inner link plate. The running resistance, abrasion and durability against the lateral force of the chain are improved.