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:
Sep. 25, 2012
Filed:
Oct. 10, 2007
Koji Tateishi, Iwata, JP;
Yoshinori Ikeda, Iwata, JP;
Koji Tateishi, Iwata, JP;
Yoshinori Ikeda, Iwata, JP;
NTN Corporation, Osaka, JP;
Abstract
An electrically driven linear actuator () has an electric motor with a ball screw mechanism (and) connected to an output shaft () of the electric motor (), via a power transmitting mechanism (and) to convert a rotary motion of the electric motor () to a linear motion of an object member to be controlled by the actuator (). Housing members (and) contain the ball screw mechanism (and) and the power transmitting mechanism (and). Stroke end members (and), of a ball screw shaft () or a ball screw nut () forming the ball screw mechanism (and), are rotatably supported relative to the housing members (and) via a free rotation mechanism (and).