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:
Aug. 18, 1998
Filed:
May. 13, 1997
Shigekazu Nagai, Ibaraki-ken, JP;
Shuuzou Sakurai, Ibaraki-ken, JP;
Masayuki Nakamura, Ibaraki-ken, JP;
SMC Kabushiki Kaisha, Tokyo, JP;
Abstract
Disclosed is an electric actuator which makes it possible to prevent a driving force-transmitting shaft from adhesion of dust or the like, and eliminate any fear for deterioration of driving force-transmitting function. A hole is defined in a body which is arranged to extend in a vertical direction. A motor is secured to one end of the body. A feed screw is coaxially connected to a rotary shaft of the motor. The feed screw is rotatably supported by angular contact ball bearings. A feed nut is engaged with the feed screw. The hole is slidably engaged with a cylinder member which is formed to be cylindrical and lengthy. The cylinder member surrounds the feed screw. The feed nut is secured to one end of the cylinder member, and a bracket is secured to the other end thereof.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile