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. 07, 2015
Filed:
Apr. 13, 2012
William R. Benner, Jr., Longwood, FL (US);
William R. Benner, Jr., Longwood, FL (US);
Pangolin Laser Systems, Inc., Orlando, FL (US);
Abstract
An electromechanical limited rotation rotary actuator comprises a stator having an aperture extending axially therein and at least two teeth having arcuate end portions forming an aperture. A rotor includes a diametral magnetized magnet bidirectionally operable with the stator and extending into the aperture. A non-uniform gap is formed between the magnet and the end portions of the teeth, and wherein the shape of the gap provides a restoration torque resulting in a spring-like return-to-center action of the rotor. An electrical coil extends around at least a portion of one tooth and is excitable for magnetizing the tooth and providing bidirectional torque to the rotor.