Damping device having controllable resistive force

Details Damping device having controllable resistive force Damping device having controllable resistive force

2006-05-25

2009-12-01

Nguyen, Xuan Lan (Department: 3657)

Brakes

Internal-resistance motion retarder

Magnetic fluid or material

C188S290000

Reexamination Certificate

active

07624850

ABSTRACT:
A damper assembly is provided including a linear to rotary motion conversion mechanism having an outer tube member. An inner tube member is reciprocally movable and at least partially disposed within the outer tube member. The inner tube member is adapted for linear translation in a first and a second direction. A rotatable shaft is disposed within the inner tube member. The translation of the inner tube member produces a rotation of the shaft. Also included within the damper assembly is a damping mechanism having a rotor fixed to the shaft. A coil is configured to generate an electromagnetic field in response to an applied current. A magneto-rheological fluid is in contact with the rotor, and has a variable viscosity in the presence of the electromagnetic field that, in turn, provides variable resistance to rotation of the rotor and translation of the inner tube member within the outer tube member.

REFERENCES:
patent: 4815575 (1989-03-01), Murty
patent: 5277281 (1994-01-01), Carlson et al.
patent: 5573088 (1996-11-01), Daniels
patent: 5667715 (1997-09-01), Foister
patent: 5878997 (1999-03-01), Miesner
patent: 6390252 (2002-05-01), Namuduri et al.
patent: 6641166 (2003-11-01), Browne et al.
patent: 2003/0079948 (2003-05-01), Jolly et al.
patent: 2004/0040805 (2004-03-01), Bailey
patent: 2005/0121269 (2005-06-01), Namuduri
patent: 63009739 (1988-01-01), None
patent: 01216138 (1989-08-01), None
patent: 09264492 (1997-10-01), None
patent: 2003004147 (2003-01-01), None

Affiliated with

Also associated with

Rating

Damping device having controllable resistive force does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Damping device having controllable resistive force, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Damping device having controllable resistive force will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4145633