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. 10, 2014
Filed:
Feb. 28, 2011
Applicants:
Atsushi Maeda, Fujisawa, JP;
Masaru Kouyama, Ayase, JP;
Mikio Yamashita, Yokohama, JP;
Fumiyuki Yamaoka, Sagamihara, JP;
Inventors:
Atsushi Maeda, Fujisawa, JP;
Masaru Kouyama, Ayase, JP;
Mikio Yamashita, Yokohama, JP;
Fumiyuki Yamaoka, Sagamihara, JP;
Assignee:
Hitachi Automotive Systems, Ltd., Ibaraki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16F 9/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
A shock absorber has an inclined surface that is inclined to a moving direction of the free piston in at least one of a free piston contact surface of a free surface with which an elastic body is in contact and a housing contact surface of a housing with which the elastic body is in contact. A shortest distance between the free piston contact surface and the housing contact surface is changed by movement of the free piston.