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. 03, 2002
Filed:
Aug. 20, 2001
Richard L. Weinbrenner, Lemont, IL (US);
Weinbrenner, Inc., Lemont, IL (US);
Abstract
A remote controlled actuator system has a motor with a drive or screw shaft. The motor drives a sliding element propelled by the screw shaft. The control circuit may include steering diodes to minimize wires where there is sensing or more than one actuator. A remote controller may direct motor movement of individual actuators without a local controller. The remote actuator may be used to sense remote position through the steering diodes. There is a bipolar and bi-level drive circuit providing the step voltage to achieve high performance motor movement. The guideway may have an internal keyway along with an anti-rotation sliding bearing protected against rotation by the keyway. This anti-rotation sliding bearing restricts the piston to linear travel along the driving motor lead screw thread. The position sensor may include a resistive element sliding contact mounted to the sliding piston. A special coaxial mechanical coupling method simplifies installation.