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. 22, 1992
Filed:
May. 20, 1991
Raymond L Bloink, Swartz Creek, MI (US);
Bradley W Kibbel, Ferndale, MI (US);
Bob R Powell, Birmingham, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
Disclosed are electrorheological fluids having ceramic particles of high ion conductivity and a nonconducting or dielectric fluid. The high ion conductive particle may be a beta-alumina material, such as a material having the formula AM.sub.5-11 O.sub.8-17, where A is a monovalent ion, such as a material comprising at least one selected from the group consisting of Li, Na, K, Rb, Ag and Te; and M is a trivalent ion, such as a material comprising at least one selected from the group consisting of Al, Fe and Ga. The liquid phase may include a silicone fluid or mineral oil. In the case of a mineral oil, the oil may also include an amine-terminated polyester to improve stability of the fluid.