Brakes – Internal-resistance motion retarder – Using magnetic flux
Reexamination Certificate
2006-05-30
2006-05-30
Torres, Melanie (Department: 3683)
Brakes
Internal-resistance motion retarder
Using magnetic flux
C188S266400, C188S268000
Reexamination Certificate
active
07051849
ABSTRACT:
A magnetorheological damper device is provided having an increased shear interface area per unit volume of the device, which enhances the stroking force of the damper. The damper generally includes a cylindrically shaped housing; a magnetorheological fluid disposed in the cylindrically shaped housing; a piston assembly disposed within the cylindrically shaped housing in sliding engagement with the cylindrically shaped housing defining a first chamber and a second chamber, wherein the piston assembly comprises a plurality of cylindrically shaped fluid passageways extending from the first chamber to the second chamber, and an electromagnet; and a power supply in electrical communication with the electromagnet.
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Browne Alan Lampe
Johnson Nancy L.
Namuduri Chandra Sekhar
General Motors Corporation
Marra Kathryn A.
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