Heat sensitive pool light

Details Heat sensitive pool light Heat sensitive pool light

1983-05-17

1984-07-17

Kelly, Donald G.

Illumination

Light source and modifier

Condition responsive

362101, 362145, 362267, 362311, 362364, 362365, 362373, 362376, 362802, F21V 2504

Patent

active

044609442

ABSTRACT:
A light unit assembly adapted to illuminate liquid below a liquid surface (for example of a pool or spa) includes
(a) a lamp unit including a metallic housing adapted to be cooled by heat transfer to the liquid, and lamp circuitry,
(b) a thermostat coupled to the lamp circuitry to control electrical energization of the lamp, and
(c) a heat conductive metallic strip associated with said housing and thermostat to become increasingly heated for changing the conductive state of the lamp in response to diminished cooling of the housing by said liquid.

REFERENCES:
patent: 4107514 (1978-08-01), Ellson
patent: 4216411 (1980-08-01), Ehret et al.
patent: 4234819 (1980-11-01), Maxey
patent: 4290094 (1981-09-01), Jensen

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