Illumination – Plural light sources – Diverse light generators
Patent
1982-09-21
1984-09-25
Nelson, Peter A.
Illumination
Plural light sources
Diverse light generators
362370, 362430, 362389, 362431, 362396, 362427, 339 1L, 339 8A, 339 88R, 339 2A, 339 46, 339 59L, 339 61L, H01R 3300
Patent
active
044738692
ABSTRACT:
Luminaire comprising a base in which there is an opening, and a lamp housing having a projecting tubular wall portion which is detachably lockable in the opening of the base and is rotatable therein around its longitudinal axis.
In accordance with the invention the said wall portion is provided around its end to be placed in the opening with a resilient metal sleeve, which is fixed in the axial direction, the tubular wall portion being rotatable with resistance within the sleeve. On placing the wall portion in the opening the sleeve assumes a fixed position with respect to the base.
REFERENCES:
patent: 1096440 (1914-05-01), Lynch
patent: 3321729 (1967-05-01), Phillips
patent: 3466648 (1969-09-01), Russenberger
patent: 3585564 (1971-06-01), Skjervoll
patent: 3781755 (1973-12-01), Pitacco
patent: 3798588 (1974-03-01), Howe et al.
patent: 3800267 (1974-03-01), Burgess et al.
patent: 3805211 (1974-04-01), Moore
patent: 4326769 (1982-04-01), Dorsey et al.
Nelson Peter A.
Smith Robert S.
U.S. Philips Corporation
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