Crossing guard maintenance system and associated method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 17, 2001
Grant Date -
N/A
app pub date -
Oct 1, 1999
filing date -
Oct 1, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A crossing guard maintenance system is disclosed for use with a disabled crossing guard control system. The crossing guard control system has a motor mechanically coupled to a crossing guard arm and a counterweight arm. The motor is used for moving the crossing guard arm between up and down positions. The maintenance system includes a function switch for alternating between normal and maintenance modes of the system. In maintenance mode, a diode is electrically connected to the motor to form a motor/diode circuit that provides a path for current when the polarity of the motor is reversed and it operates as a generator. The maintenance system also includes an electrical power source connected to a momentary switch for providing power to the motor. A method for using the maintenance system is also disclosed for use in repairing a disabled crossing guard mechanism.
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Family
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Cited Art Landscape
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