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. 03, 1979
Filed:
Nov. 17, 1977
Takashi Segawa, Sakai, JP;
Seiji Fukui, Sakai, JP;
Shimano Industrial Company Limited, Osaka, JP;
Abstract
A multi-speed transmission hub for a bicycle having a multi-speed change mechanism and a braking mechanism for braking action by back-pedaling, in which first transmitting members of pawl shape serve to transmit the driving force from the speed-change mechanism to a hub shell and are urged by a pawl spring in the direction of being disengaged from first inner teeth of the hub shell, while, the transmitting members are adapted to be engaged with the first inner teeth by use of differential rotary speed between a gear frame and ring gear of the speed-change mechanism, when a driving member is normally rotated.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile