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:
Aug. 08, 2006
Filed:
Oct. 28, 2004
Applicants:
Tsuneo Endoh, Wako, JP;
Masaki Nakata, Wako, JP;
Kengo Ishimitsu, Wako, JP;
Tsutomu Inoue, Wako, JP;
Inventors:
Tsuneo Endoh, Wako, JP;
Masaki Nakata, Wako, JP;
Kengo Ishimitsu, Wako, JP;
Tsutomu Inoue, Wako, JP;
Assignee:
Honda Motor Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02F 3/00 (2006.01); F16J 1/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A piston for an internal combustion engine includes a crown, tubular walls extending from the edge of the crown, and a cup portion protruding from the rear surface of the crown and having a concave spherical surface for forming a spherical joint with a spherical small end on a connecting rod. The tubular walls and the cup portion are joined together by radially extending ribs.