Illumination device having underground storage position

Details Illumination device having underground storage position Illumination device having underground storage position

1989-11-29

1990-11-27

Husar, Stephen F.

Illumination

Light source and modifier

Adjustable or repositionable light source or light source...

362289, 362386, 362394, 362802, F21V 2122

Patent

active

049741349

ABSTRACT:
An illumination device that is stored below ground level when not in use and that extends above the ground when in use. A clear lens that protects a light bulb from the elements surmounts an inner housing member that is telescopically received within an outer housing member that is buried in the ground. When a motor is activated, the inner housing that carries the light bulb extends axially upwardly from the outer housing. When the inner housing reaches its fully extended position, a limit switch shuts off the motor. Subsequent reactivation of the motor retracts the inner housing and bulb back into the outer housing, and another limit switch shuts off the motor when full retraction has been achieved. A second embodiment has an improved structure that facilitates replacement of the motor, and a third embodiment has a further improved structure that eliminates several parts required in the first and second embodiments.

REFERENCES:
patent: 4180850 (1979-12-01), Bivens

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