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:
May. 01, 2012
Filed:
Jun. 02, 2009
Applicant:
Kaoru Hirotani, Tochigi, JP;
Inventor:
Kaoru Hirotani, Tochigi, JP;
Assignee:
Honda Motor Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 43/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fluid spring is provided with a sleeve, a first chamber configured to accommodate a fluid and formed in the sleeve, a hollow piston rod, a second chamber configured to accommodate the fluid and formed in the hollow piston rod, and a communicating passage configured to make the first chamber and the second chamber communicate with each other and formed in an end portion of the hollow piston rod. A part of the hollow piston rod is displacably accommodated in the first chamber. The communicating passage only permits the fluid to flow in a direction from the first chamber to the second chamber.