SYSTEM AND METHOD OF OPERATING A GOVERNOR WITH INDEPENDENT THRESHOLD SPEEDS
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United States of America Patent
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Apr 28, 2015
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Jul 23, 2014
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Abstract
A governor system for an elevator is provided including at least one sheave 202, 204. A first centrifugal mechanism 206 rotates concurrently with the at least one sheave 202; and a first retention device 214 limits movement of the first centrifugal mechanism. A second centrifugal mechanism 236 rotates concurrently with the at least one sheave 204; and a second retention device 244 limits movement of the second centrifugal mechanism.
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