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:
Sep. 18, 1990
Filed:
Aug. 07, 1989
Applicant:
Inventor:
Masaaki Yoshikawa, Iwata, JP;
Assignee:
Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
474101 ; 474134 ;
Abstract
A valve operating mechanism for a high performance internal combustion engine including a flexible transmitter drive for the camshaft that includes a toothed belt. A timing retention sprocket is juxtaposed to one of the sprockets that is interengaged with the belt and which provides a positive drive therebetween in such a location as to prevent the teeth of the sprocket and belt from coming out of engagement.
Quick Actions:
Yoshikawa, Masaaki. (1990). Valve operating system for engine (U.S. Patent No. 4957470). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4957470
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile