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. 15, 1980
Filed:
Mar. 22, 1979
Applicant:
Inventor:
Takeo Fukui, Tokyo, JP;
Assignee:
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277217 ; 92177 ;
Abstract
A four cylinder four cycle spark ignition engine has oblong pistons each mounted to reciprocate within an oblong cylinder. Each piston is elongated in a direction parallel to the axis of the crankshaft and is provided with piston rings which have sliding contact with the surface of the oblong cylinder. Each piston ring is split at one side, and the free shape thereof prior to installation is such as to give superior results after installation when the engine is operated at high speed and high performance.
Fukui, Takeo. (1980). Piston ring for internal combustion engine (U.S. Patent No. 4198065). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4198065
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile