Electric lamp having seals with metal foil therein

Details Electric lamp having seals with metal foil therein Electric lamp having seals with metal foil therein

1997-06-05

2000-06-20

Patel, Nimeshkumar D.

Electric lamp and discharge devices

With gas or vapor

Having electrode lead-in or electrode support sealed to...

313331, 313 43, 313251, 313249, H01J 546

Patent

active

060781408

ABSTRACT:
The electric lamp has a vacuumtight seal (4) on the longitudinal axis (2) of a glass lamp vessel (1). An internal (12) and an external conductor (13) each have an end (14) inside the seal (4) and extend through a common axial region (5) of the seal (4) in a spaced apart manner. Several metal foils (11) arranged in a flat plane of the seal (4) extend parallel one to the other, in a transversal direction thereof. They have knife-shaped transversal edges (15) and are welded to the internal (12) and the external (13) conductors. The current conductors (10) constituted by the foils (11), the internal (12) and the external (13) conductors are able to conduct rather high currents. The lamp, nevertheless, is of a simple, strong and reliable construction.

REFERENCES:
patent: 3609212 (1971-09-01), Lewis et al.
patent: 5077505 (1991-12-01), Ekkelboom et al.
patent: 5159239 (1992-10-01), Ekkelboom et al.

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