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. 16, 2013
Filed:
Jun. 25, 2010
Applicants:
Koji Tateishi, Iwata, JP;
Yoshinori Ikeda, Iwata, JP;
Inventors:
Koji Tateishi, Iwata, JP;
Yoshinori Ikeda, Iwata, JP;
Assignee:
NTN Corporation, Osaka-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 3/06 (2006.01); F16H 27/02 (2006.01); F16H 29/02 (2006.01); F16H 29/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electrically driven linear actuator has an actuator body with a ball screw to convert a rotational motion to a linear motion. An electric motor provides the rotational motion. A gear mechanism transmits rotational motion of the electric motor to the ball screw of the actuator body. A position holding mechanism holds the position of the ball screw of the actuator body by engaging teeth, specifically a space between adjacent teeth, of a gear forming the gear mechanism.