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:
Jun. 04, 2013
Filed:
Nov. 10, 2009
Kenichi Ohmori, Saitama, JP;
Kazuyuki Nakai, Saitama, JP;
Akifumi Nomura, Saitama, JP;
Kazuya Tanabe, Saitama, JP;
Satoshi Ino, Saitama, JP;
Shinichi Wagatsuma, Saitama, JP;
Kenichi Ohmori, Saitama, JP;
Kazuyuki Nakai, Saitama, JP;
Akifumi Nomura, Saitama, JP;
Kazuya Tanabe, Saitama, JP;
Satoshi Ino, Saitama, JP;
Shinichi Wagatsuma, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A piston with transverse-rib through holes formed easily therein for reducing the cost of manufacturing. A piston includes a pair of mutually opposed longitudinal ribs individually formed with piston pin bosses interconnecting a pair of piston skirt portions on a back side of a piston head. A pair of transverse ribs interconnect the mutually opposed longitudinal ribs with the transverse ribs. The pair of transverse ribs are formed with transverse-rib through holes at places proximal to the back side of the piston head. A skirt opening is formed by cutting away a part of the piston skirt portion that is opposed to the transverse rib and faces the transverse-rib through hole.