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:
Jan. 29, 2013
Filed:
Oct. 09, 2009
John C. Ulicny, Oxford, MI (US);
Mark A. Golden, Washington, MI (US);
Keith S. Snavely, Sterling Heights, MI (US);
Prabhakar Marur, Karnataka, IN;
John C. Ulicny, Oxford, MI (US);
Mark A. Golden, Washington, MI (US);
Keith S. Snavely, Sterling Heights, MI (US);
Prabhakar Marur, Karnataka, IN;
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A magnetorheological composition includes a mixture of a carrier medium and a particle component disposed in the carrier medium. The particle component includes a magnetic material and a nonmagnetic material. The nonmagnetic material is present in the particle component in an amount of from about 5 to about 95 parts by volume based on 100 parts by volume of the particle component. The particle component is present in the magnetorheological composition in an amount of from about 20 to about 80 parts by volume based on 100 parts by volume of the magnetorheological composition. The magnetorheological composition has an on-state yield stress at magnetic saturation of from about 0.1 to about 100 kPa.