Vehicle headlight bulb

Details Vehicle headlight bulb Vehicle headlight bulb

2005-01-17

2008-11-25

Patel, Ashok (Department: 2889)

Electric lamp and discharge devices

With envelope

Having base and connector

C313S318090, C313S048000, C313S623000

Reexamination Certificate

active

07456560

ABSTRACT:
The invention relates to a vehicle headlight bulb with a bulb receptacle, a spiral wound filament (2) which is arranged inside the receptacle for the bulb (1) and a lamp base which has a metal base bushing (3) wherein the end (11) of the bulb receptacle (1), which is sealed by means of a molybdenum film seal (112, 113) is fixed. According to the invention, the metal base bushing (3) comprises at least one molded tab (32) which lies adjacent to the sealed end (11) of the bulb receptacle (1), in the overlapping area of the molybdenum films (112, 113), with current supply wires (23, 24) which protrude from the bulb receptacle and which are connected thereto, in order to reduce thermal load in the above-mentioned overlapping area during operation of the bulb.

REFERENCES:
patent: 3885149 (1975-05-01), Wolfe et el.
patent: 4714858 (1987-12-01), Sanders et al.
patent: 4751421 (1988-06-01), Braun et al.
patent: 4843276 (1989-06-01), Jacrot
patent: 4864183 (1989-09-01), Okano et al.
patent: 6239539 (2001-05-01), Mochiduki et al.
patent: 90 10 517 (1990-10-01), None
patent: 0 235 855 (1987-09-01), None
patent: 1 334 860 (1973-10-01), None

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