Elevator brake including coaxially aligned first and second brake members
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United States of America Patent
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May 2, 2017
Issued Date -
N/A
app pub date -
Apr 30, 2014
filing date -
Nov 4, 2010
priority date (Note) -
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Abstract
An example elevator brake includes a first braking member that is biased by a first spring member into engagement with a braking surface. The first braking member includes a first armature arranged to be actuated by an electromagnetic actuator to disengage the first braking member from the braking surface against the biasing force of the first spring member. A second braking member is biased by a second spring member into engagement with a braking surface. The second braking member includes a second armature arranged to be actuated by an electromagnetic actuator to disengage the second braking member against the biasing force of the second spring member. A first electromagnetic actuator actuates the first armature and a second electromagnetic actuator actuates the second armature.
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