Illumination – Elongated source light unit or support – With or including transparent or translucent member
Patent
1992-04-01
1993-02-23
Cole, Richard R.
Illumination
Elongated source light unit or support
With or including transparent or translucent member
362260, 362294, 362376, F21V 2500
Patent
active
051884518
ABSTRACT:
An elongated jacketed discharge lamp uses an improved spacer end cap in the form of a one-piece body of thermally insulating material having an annular ring-shaped side portion and an annular disk-shaped end portion integrally-connected therewith. The annular side portion has an annular interior wall surface defining a central cavity receiving and frictionally engaging at least the periphery of an end base on an end of an envelope tube of the jacketed lamp. The annular side portion also has an annular groove formed therein receiving and seating one end of an outer sleeve which surrounds the envelope tube of the jacketed lamp. The groove is defined by an outer annular wall surface which surrounds and frictionally engages the exterior of the one end of the outer sleeve and an inner annular wall surface spaced radially inwardly from the interior of the end of the outer sleeve away from frictional engagement therewith. The annular end portion has an annular inner rim defining a central aperture through which protrudes an annular contact pin-containing housing projecting from the end base on the envelope tube end. The annular inner rim sealably surrounds the annular housing and overlies a peripheral edge of the envelope tube end base.
REFERENCES:
patent: 2308986 (1943-01-01), Livers
patent: 3358167 (1967-12-01), Shanks
patent: 3453470 (1969-07-01), Hammer
patent: 3673401 (1972-06-01), Du Pont
patent: 3720826 (1973-03-01), Gilmore et al.
patent: 3798481 (1974-03-01), Pollara
patent: 3808495 (1974-04-01), Win
patent: 4924368 (1990-05-01), Northrop et al.
patent: 5045756 (1991-09-01), Livera
Cole Richard R.
Corcoran Edward M.
Corwin Stanley C.
General Electric Company
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