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:
Apr. 27, 2004
Filed:
Aug. 12, 2002
Chi-Yuan Cheng, Taichung, TW;
Kuei-Ju Kuo, Taichung, TW;
Hiwin Mikrosystem Corp., Taichung, TW;
Abstract
A linear actuator includes a casing and a retractable member driven by a motor is movably received in the casing and a contact member is connected to the retractable member. A first position switch connected to the motor, a plurality of travel switches and a final position switch connected with a diode are connected to the actuator. These switches are connected in series by normal-close switches. Normal-open switches of the travel switches located between the first position switch and the final position switch are connected to a circuit of the control device. The motor is stopped when the final position switch touches the contact member of the retractable member, the motor is activated, when a current is applied to the diode again.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile