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. 12, 1997
Filed:
Feb. 17, 1995
John A Starkovich, Redondo Beach, CA (US);
Emil M Shtarkman, Southfield, MI (US);
TRW Inc., Lyndhurst, OH (US);
Abstract
An apparatus (40) is connectable between relatively movable parts (12, 14) to resist relative vibration of the parts. The apparatus comprises a first ring-shaped member (50) having a first platform surface (54) engageable with one part (12). A second ring-shaped member (60) has a second platform surface (64) engageable with another part (14). One of the first and second ring-shaped members (50, 60) defines a series of sealed fluid chambers (48) located between the first and second members (50, 60) and spaced apart from each other around the first and second members. Each chamber (48) contains a fluid having a resistance to shear which varies in response to an energy field acting on the fluid. Each chamber (48) has its own respective blade member (42) connected to one of the first and second members (50, 60). The blade member (42) extends into the associated chamber (48). Each chamber (48) has its own respective pair of electromagnets (90, 92) for applying an energy field to the fluid in the chamber to vary the resistance to shear of the fluid as a function of the energy field acting thereon. The movement of the blade member (42) in the chamber (48) is resisted by the fluid.