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.

Date of Patent:
Oct. 28, 2008

Filed:

Nov. 04, 2005
Applicants:

Shigekazu Nagai, Adachi-ku, JP;

Akio Saitoh, Kawaguchi, JP;

Toru Sugiyama, Abiko, JP;

Ryuichi Masui, Bando, JP;

Takeshi Hirose, Moriya, JP;

Masaki Miyahara, Moriya, JP;

Inventors:

Shigekazu Nagai, Adachi-ku, JP;

Akio Saitoh, Kawaguchi, JP;

Toru Sugiyama, Abiko, JP;

Ryuichi Masui, Bando, JP;

Takeshi Hirose, Moriya, JP;

Masaki Miyahara, Moriya, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 17/32 (2006.01);
U.S. Cl.
CPC ...
Abstract

An actuator control system comprises an electric actuator, a driver, and a controller. The electric actuator is provided with a buffering mechanism which absorbs impact applied to a piston rod. The buffering mechanism includes piston dampers which absorb impact applied to a piston, a first end damper which is provided at an end of a housing facing the piston, and a second end damper which is provided on a rod cover separated from the housing by a predetermined distance.


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