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:
Aug. 02, 2005
Filed:
Jun. 23, 2003
James M. Barbison, Brampton, CA;
Kevin H. Erickson, Etobicoke, CA;
Arnett R. Weber, Mississauga, CA;
Ronald W. Farewell, Mississauga, CA;
Richard Coury, Rochester Hills, MI (US);
Thomas R. King, Milton, CA;
Stephen H. Bell, Guelph, CA;
Nelson C. Goncalves, Mississauga, CA;
James M. Barbison, Brampton, CA;
Kevin H. Erickson, Etobicoke, CA;
Arnett R. Weber, Mississauga, CA;
Ronald W. Farewell, Mississauga, CA;
Richard Coury, Rochester Hills, MI (US);
Thomas R. King, Milton, CA;
Stephen H. Bell, Guelph, CA;
Nelson C. Goncalves, Mississauga, CA;
ArvinMeritor Technology, LLC, Troy, MI (US);
Abstract
A variable spring member includes a containment housing defining an inner chamber with alternating layers of compressible medium and electro-reactive medium. Adjacent each layer of electro-reactive medium is a coil assembly controlled by a controller. A sealed plate disposed between alternating layers of compressible medium and electro-reactive medium disperses a load exerted on the variable spring member assembly and prevents intermixing of compressible medium with the electro-reactive medium. Actuation of the coil assembly changes physical characteristics and compressibility of the layer of electro-reactive medium to vary spring rate and stiffness.