Brakes – Internal-resistance motion retarder – Magnetic fluid or material
Patent
1992-09-28
1993-11-02
Butler, Douglas C.
Brakes
Internal-resistance motion retarder
Magnetic fluid or material
188130, 188290, 188306, 192 215, 26714015, F16F 600
Patent
active
052576817
ABSTRACT:
An apparatus for damping movement includes a housing and a blade which are movable relative to each other. The blade is cantilevered to an axis and has segments formed of magnetizable material which are separated by segments formed of nonmagnetizable material. Electromagnetic coils are connected with the housing and apply a magnetic field to a magnetic field responsive fluid through which the blade is movable. The blade has recesses which are formed in the segments of magnetizable material and hold magnetic field responsive fluid. A plurality of ribs separate the recesses and are at least partially formed of the nonmagnetizable material. In one embodiment of the invention, ribs and recesses are provided on opposite sides of the blade. In another embodiment of the invention, the ribs and recesses are provided on one side of the blade and the opposite side of the blade is flat. A side surface which is connected with the housing may have ribs and recesses which are aligned with the ribs and recesses in the blade.
REFERENCES:
patent: 2629471 (1953-02-01), Rabinow
patent: 2695675 (1954-11-01), Frye
patent: 2743800 (1956-05-01), Levinson et al.
patent: 2745527 (1956-05-01), Winther
patent: 2748911 (1956-06-01), Stahl
patent: 2832449 (1958-04-01), Winther
patent: 2948371 (1960-08-01), Lehde
patent: 3208567 (1965-09-01), Metzger
patent: 4844220 (1989-07-01), Maji et al.
patent: 4896754 (1990-01-01), Carlson et al.
patent: 4942947 (1990-07-01), Shtarkman
patent: 5054593 (1991-10-01), Carlson
Graves James L.
Shtarkman Emil M.
Butler Douglas C.
TRW Inc.
LandOfFree
Apparatus for damping movement does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for damping movement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for damping movement will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1752470