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:
Jan. 01, 2008
Filed:
Jul. 26, 2004
Applicants:
Shigemi Shimizu, Isesaki, JP;
Masatoshi Sagiya, Isesaki, JP;
Hidenori Hosoi, Isesaki, JP;
Inventors:
Assignee:
Sanden Corporation, Gunma, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 27/00 (2006.01); F04B 1/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A piston includes a piston body fitted into a cylinder bore and having a sliding peripheral surface disposed in sliding contact with the inner peripheral surface of the cylinder bore. The sliding peripheral surface of the piston body and the inner peripheral surface of the cylinder bore each have a noncircular cross-sectional form. The sliding peripheral surface of the piston body is formed by an elastically deformable sealing member.