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. 20, 1999
Filed:
Feb. 28, 1997
Applicant:
Inventors:
Hiroaki Watanabe, Kanagawa, JP;
Kazuhiko Shirane, Yokohama, JP;
Shingo Motoda, Kanagawa, JP;
Hideyuki Miyasaka, Kanagawa, JP;
Assignee:
Unisia Jecs Corporation, Atsugi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02F / ;
U.S. Cl.
CPC ...
1231936 ;
Abstract
A piston for an internal combustion engine includes a ring land formed with a piston-ring groove, and a skirt connected to the ring land so that the piston-ring groove is adjacent thereto, the skirt being formed with a piston-pin hole with an axis, and having a plane including the axis of the piston-pin hole. A taper is formed on the skirt in a first portion thereof nearer to the ring land than the plane to converge on the ring land.