Device for arresting the motion of a motor driven panel

Details Device for arresting the motion of a motor driven panel Device for arresting the motion of a motor driven panel

1980-10-01

1982-09-21

Eisenzopf, Reinhard J.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

49 27, 49 28, 318266, 318286, 318466, H01H 4712, E05F 1502

Patent

active

043510167

ABSTRACT:
Apparatus is disclosed for arresting the motion of a motor driven panel wherein an electrical conductor along an exposed edge of the panel is connected to an electrical sensing circuit. The presence of an object in contact with the electrical conductor is sensed by the sensing circuit, which then operates a switching device. The switching device disconnects drive power to the motor, preventing motion of the panel for as long as the object is in contact with the electrical conductor.

REFERENCES:
patent: 3624473 (1971-11-01), Robbins
patent: 3651389 (1972-03-01), Ito et al.
patent: 3764861 (1973-10-01), Orris
patent: 3815005 (1974-06-01), Berger

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