Vehicle restraint sensing system
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United States of America Patent
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-
May 16, 2000
Issued Date -
N/A
app pub date -
Mar 5, 1998
filing date -
Aug 29, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
A vehicle restraint having a fixed member such as a frame mounted to a dock face and a hook movable relative to the fixed member for engaging a portion of a vehicle and restraining movement of the vehicle away from the dock. A non-contact sensor is employed to determine engagement of the hook with a portion of the vehicle. The sensor is positioned to provide an effective magnetic field in the zone of contact so that engagement with an ICC bar on the vehicle can be ascertained. The sensor may also be a sensor bar pivotally movable respect to a vertical restraining member. The sensor bar houses a sensor that determines relative movement between itself and a target to provide a signal indicative of engagement when the sensor bar is depressed by the vehicle.
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