Braking device for a rotary motor including a compression spring

Details Braking device for a rotary motor including a compression spring Braking device for a rotary motor including a compression spring

1990-02-15

1991-08-13

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310 77, H01L 4108

Patent

active

050399004

ABSTRACT:
A braking device for a rotary motor includes a braking member movably mounted to a non-rotating member of the rotary motor. The braking device further includes a compression spring coupled to the braking member for exerting a force on the braking member to cause the braking member to contact a rotating member of the rotary motor. The braking device further includes a piezoelectric element for actuating in response to a signal applied thereto to exert a force on the braking member to counteract the force applied to the braking member by the compression spring so as to cause the braking member to separate from the rotating member of the rotary motor.

REFERENCES:
patent: 4059779 (1977-11-01), Wistinghausen
patent: 4174182 (1979-09-01), Lendl
patent: 4438363 (1984-03-01), Babitaka et al.
patent: 4769569 (1988-09-01), Stahlhuth
patent: 4854424 (1989-08-01), Yamatoh et al.

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