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:
Jul. 17, 1990
Filed:
Feb. 23, 1989
Applicant:
Inventors:
Assignee:
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16J / ; F16J / ;
U.S. Cl.
CPC ...
2772 / ; 2772 / ; 277D / ; 428611 ; 428614 ;
Abstract
A fiber-reinforced piston ring for an internal combustion engine comprised of composite body of reinforcing fiber which is long carbon fibers oriented in a peripheral direction of the piston ring and having a fiber volume fraction in a range of 5% to 60% in a matrix of an aluminum alloy. In alternate embodiments the composite body is provided with a layer of aluminum alloy, or a hard layer for wear resistance, or a combination of an aluminum alloy layer and a hard layer.
Fujisawa, Yoshikazu. (1990). Fiber-reinforced piston ring for internal combustion engine (U.S. Patent No. 4941669). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4941669
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile