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:
Jul. 21, 2009
Filed:
Aug. 15, 2005
Applicants:
Shigekazu Nagai, Ibaraki, JP;
Akio Saitoh, Ibaraki, JP;
Toru Sugiyama, Ibaraki, JP;
Masaki Miyahara, Ibaraki, JP;
Inventors:
Shigekazu Nagai, Ibaraki, JP;
Akio Saitoh, Ibaraki, JP;
Toru Sugiyama, Ibaraki, JP;
Masaki Miyahara, Ibaraki, JP;
Assignee:
SMC Corporation, Chiyoda-ku, Tokyo, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 27/02 (2006.01); F16H 29/02 (2006.01); F16H 3/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is an electric actuator capable of effectively absorbing shock exerted on its component part. The electric actuator has a housing, a rod cover, a piston, a feed screw, a sliding nut, two piston dampers for absorbing shock exerted on the piston, a first end damper attached to one of the opposite ends of the housing, a second end damper attached to the rod cover. The sliding nut is axially displaceable relative to the piston when the piston damper absorbs shock.