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:
May. 19, 1981
Filed:
Aug. 17, 1978
Applicant:
Inventors:
Takashi Segawa, Sakai, JP;
Tadashi Ueno, Sakai, JP;
Assignee:
Shimano Industrial Company Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
474160 ; 474164 ;
Abstract
Multi-speed sprockets are assembled with at least one larger diameter sprocket and at least one smaller diameter sprocket, in which the center of a space between certain adjacent teeth of the larger diameter sprocket is positioned on a tangent line drawn from the center of a space between certain adjacent teeth at the smaller diameter sprocket, and the distance between both centers is made substantially equal to an integer multiple of the pitch of a driving chain.
Segawa, Takashi. (1981). Multi-speed sprockets for a bicycle and the like (U.S. Patent No. 4268259). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4268259
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile