Anti-pinch power window system

Details Anti-pinch power window system Anti-pinch power window system

2006-04-04

2006-04-04

Thompson, II, Hugh B. (Department: 3634)

Movable or removable closures

Safety means responsive to obstruction to closure

Closure drive stopping or reversal

C049S026000, C049S349000, C049S362000, C318S469000, C318S282000, C074S089230, C074S089140

Reexamination Certificate

active

07021001

ABSTRACT:
An anti-pinch power window system is comprised of a hub, a motor, a threaded rod, a base, a spring, a frame, a bracket, a threaded drive nut, a reversing switch and an electronic circuit. The motor rotates the hub. The rod is slidably attached to the hub. The base is attached to the rod. The spring surrounds the rod and is positioned such that it is compressed by movement of the base toward the hub. The bracket is attached to the frame and holds the drive nut. The rod is threaded into the drive nut. The reversing switch senses downward movement of the base and in response to such downward movement signals the electronic circuit to reverse the polarity of the motor input voltage, thereby reversing the direction of the travel of the frame. A closing window within the frame will reverse direction when it encounters an obstruction.

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