Brakes – Internal-resistance motion retarder – Magnetic fluid or material
Reexamination Certificate
2003-10-14
2011-10-25
Nguyen, Xuan Lan (Department: 3657)
Brakes
Internal-resistance motion retarder
Magnetic fluid or material
C416S080000, C416S500000
Reexamination Certificate
active
08042659
ABSTRACT:
A system for reducing vibrations in a rotating system uses a variable viscosity medium that is redistributed in a housing connected to the rotating system. Specifically, the medium is responsive to a control signal that is generated as a function of rotational speed of the rotational system. The control signal activates a triggering device that promotes a change in viscosity of the medium such that it is distributed within the housing in a manner that reduces vibratory loads.
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patent: 5497861 (1996-03-01), Brotz
patent: 5757662 (1998-05-01), Dyer et al.
patent: 2001/0035068 (2001-11-01), Case et al.
patent: 02150526 (1990-06-01), None
patent: 2001099739 (2001-04-01), None
Carlson Gaskey & Olds P.C.
Nguyen Xuan Lan
Sikorsky Aircraft Corporation
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