ELEVATOR SAFETY BRAKING DEVICE
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United States of America Patent
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Issued Date -
Jun 6, 2024
app pub date -
Jan 26, 2024
filing date -
Jan 26, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
An elevator safety device for an elevator car, which includes one or more hydraulically-powered braking assemblies mounted on the elevator car and designed to selectively brake on a guide rail of the elevator car upon detection of a predetermined safety condition, including an uncontrolled ascending or unintended movement of the elevator car, prior to actuation of any mechanical safety brake. The safety device may be used with traction-type or hydraulic-type elevators.
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