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:
Dec. 11, 2007
Filed:
Jul. 27, 2005
John C. Ulicny, Oxford, MI (US);
Daniel J. Klingenberg, Stoughton, WI (US);
Anthony L. Smith, Troy, MI (US);
Mark A. Golden, Washington, MI (US);
John C. Ulicny, Oxford, MI (US);
Daniel J. Klingenberg, Stoughton, WI (US);
Anthony L. Smith, Troy, MI (US);
Mark A. Golden, Washington, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Wisconsin Alumni Research Foundation, Madison, WI (US);
Abstract
A device employing a magneto rheological (MR) fluid in combination with a stator and a rotor is disclosed, where the stator includes a magnetic field generator. The rotor has a rotational axis and a rotational degree of freedom with respect to the stator. The stator and rotor define an annular space therebetween and are coupled via the MR fluid disposed within the annular space, and the magnetic field generator is in field communication with the MR fluid at the annular space. The device includes a means for promoting the formation of stationary stripes of MR fluid within the annular space in response to rotation of the rotor.