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:
Apr. 26, 2005
Filed:
Apr. 04, 2003
Scott B. Robb, Toledo, OH (US);
James A. Duggan, Temperance, MI (US);
Scott B. Robb, Toledo, OH (US);
James A. Duggan, Temperance, MI (US);
Torque-Traction Technologies, Inc., Holland, OH (US);
Abstract
A center bearing assembly rotatably supports an intermediate portion of a vehicle driveshaft assembly during use. The center bearing assembly includes a rigid bracket that is secured to a support surface of the vehicle, a support member that is supported within the rigid bracket, and an annular bearing that is supported within the support member for rotatably supporting the intermediate portion of the vehicle driveshaft assembly. The support member is formed from a resilient material and has a cavity formed therein. A plurality of bladders is disposed within the cavity formed in the support member. Each of the bladders is filled with a quantity of a rheological fluid. Fluid communication between adjacent pairs of the bladders is provided by respective control valves. A control circuit is provided for selectively generating and applying an energy field to each of the control valves so as to vary the ability of the rheological fluid to flow therethrough between the associated pair of bladders. As a result, the vibration dampening characteristics of the support member can be varied.