High pressure discharge lamp having a containment sleeve fused t

Details High pressure discharge lamp having a containment sleeve fused t High pressure discharge lamp having a containment sleeve fused t

1992-12-22

1995-04-11

Horabik, Michael

Electric lamp and discharge devices

With temperature modifier

Double wall, jacket or casing for envelope

313312, 313573, 313634, 362186, H01J 502

Patent

active

054061652

ABSTRACT:
An electric lamp has a lamp vessel (2) mounted in an outer bulb (1). A glass containment sleeve (10) surrounds the lamp vessel and is fused to a tipped off exhaust tube (5). A coiled wire (11) surrounds the sleeve 10 and provides further containment. The wire may be fixed to the sleeve (10) by clamping fit. The construction of the lamp is simple and effective to protect the outer bulb (1) from being damaged by an explosion of the lamp vessel (2).

REFERENCES:
patent: 4678960 (1987-07-01), Reiling
patent: 4721876 (1988-01-01), White et al.
patent: 4942330 (1990-07-01), Karlotski et al.
patent: 4950938 (1990-08-01), Ramaiah
patent: 5128589 (1992-07-01), Dakin

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