Illumination – Supports – Electromagnetic operator controls movable light support
Patent
1991-03-25
1991-12-24
Husar, Stephen F.
Illumination
Supports
Electromagnetic operator controls movable light support
3621531, 362286, 362364, 362394, F21S 100
Patent
active
050758349
ABSTRACT:
A retractable light fixture apparatus has a housing having sides, a bottom, and an open end having a cover attached thereto. An electrically actuated lamp solenoid is attached inside the housing and has a solenoid arm having a lamp attached to the end thereof for raising the lamp from inside the housing through the housing cover when the solenoid is in an extended position and for lowering the lamp back into the housing when the lamp solenoid arm is lowered. An electrical conductor is connected from an electrical power source to the lamp solenoid and to the lamp for powering the lamp and solenoid. The electrical conductor has a remote switch therein for turning the power to the lamp on and off. A system for latching has a latching solenoid for holding the lamp solenoid and lamp thereon in an extended position. The latching system disengages the power to the lamp solenoid when the latch solenoid is in a latch position and simultaneously switches on the power to the lamp so that the light fixture raises and lowers the lamp and turns the lamp on and off upon the electric power being applied to the light fixture by actuating a remote switch.
REFERENCES:
patent: 4974134 (1990-11-01), Bourne
patent: 4984139 (1991-01-01), Goggia
patent: 5003441 (1991-03-01), Crowe et al.
Hobby III William M.
Husar Stephen F.
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