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:
Mar. 20, 1990
Filed:
Dec. 12, 1988
Applicant:
Inventor:
Hideaki Ueda, Iwata, JP;
Assignee:
Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B / ;
U.S. Cl.
CPC ...
60313 ; 60314 ; 60324 ;
Abstract
A high output internal combustion engine embodying an improved exhaust system including a reflective control valve that is positioned so as to prevent the existence of positive pressure at the exhaust port during certain running conditions so as to improve induction efficiency.
Ueda, Hideaki. (1990). High performance exhaust system for internal combustion engine (U.S. Patent No. 4909033). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4909033
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile