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:
Feb. 17, 1987
Filed:
May. 08, 1984
Applicant:
Inventor:
Keisuki Ban, Fujimi, JP;
Assignee:
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23P / ;
U.S. Cl.
CPC ...
92212 ; 92213 ; 92222 ; 92224 ; 92248 ; 1231 / ;
Abstract
A fiber-reinforced lighweight alloy piston for an internal-combustion engine, comprising a piston body having a compression ring groove whose bounding surface is reinforced with alumina fibers. At least those alumina fibers positioned in the region of the annular opening of the groove has a crystalline structure of .theta./.alpha.-Al.sub.2 O.sub.3 type and a specific gravity limited to a value between 3.7 and 3.9.