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. 26, 2012
Filed:
Dec. 01, 2008
Applicants:
Susumu Sakamoto, Kanagawa, JP;
Daisuke Takahashi, Kanagawa, JP;
Junichi Nagasawa, Kanagawa, JP;
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J 10/00 (2006.01); F16J 10/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
There is provided a cylinder apparatus consisting of a cylinder, a piston performing reciprocating motion between a top dead point and a bottom dead point with oscillatory movement in the cylinder, wherein the cylinder has an oscillatory distance between the top dead point and the bottom dead point, which is shorter than the oscillatory distance at the top and bottom dead points.