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. 07, 2015
Filed:
Dec. 04, 2012
Chi-wei Chiu, New Taipei, TW;
Chi-Wei Chiu, New Taipei, TW;
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
Abstract
An actuator includes a base, a stationary frame fixed on the base, a movable frame received in the stationary frame, a SMA line, a guide pole, a position sensor, and a controller. The movable frame includes a resisting surface adjacent to the base, and defines a hole. The SMA line resists on the resisting surface. Two ends of the SMA line are fixed on the stationary frame. The guide pole is fixed on the base and extends through the hole. The position sensor detects the position of the movable frame. The controller supplies current to heat the SMA line to change the length of the SMA line, the SMA line drives the movable frame to move along the guide pole accordingly. The controller adjusts the current according to the position of the movable frame detected by the position sensor.