Rubber bearing

Details Rubber bearing Rubber bearing

1992-11-13

1994-06-07

Graham, Matthew C.

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

248562, F16F 1300, B60K 512

Patent

active

053182839

ABSTRACT:
A rubber bearing, in which a liquid-filled working chamber is bounded by an expanding member and by a compensating wall that is capable of moving back and forth in the direction of the working chamber, wherein the compensating wall consists at least partially of a material that is capable of being moved by magnetic forces and extends relatively movably with one partial area into an air gap between mutually opposing electromagnets, which are capable of receiving an electric current. Each electromagnet has at least one coil capable of receiving a d.c. current and at least one coil capable of receiving an a.c. current. In the opposing electromagnets, current traverses either the direct current coils or the alternating coils in opposite directions.

REFERENCES:
patent: 4650170 (1987-03-01), Fukushima
patent: 4693455 (1987-09-01), Andra
patent: 4762306 (1988-08-01), Watanabe et al.
patent: 4793599 (1988-12-01), Ishioka et al.
patent: 4872652 (1989-10-01), Rohner et al.
patent: 4899996 (1990-02-01), Maassen et al.
patent: 5042786 (1991-08-01), Freudenberg et al.
patent: 5238232 (1993-08-01), Kobayashi et al.

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