Electric lamp with high and low melting point current supply con

Details Electric lamp with high and low melting point current supply con Electric lamp with high and low melting point current supply con

1994-11-04

1996-09-17

O'Shea, Sandra L.

Electric lamp and discharge devices

With gas or vapor

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

H01J 1718

Patent

active

055571697

ABSTRACT:
An electric lamp includes a lamp vessel sealed in a gastight manner and having a wall of ceramic material. A current supply conductor is connected to an electric element arranged in the lamp vessel and issues to the exterior via a lead-through channel in the wall. The current supply conductor has a first part with a comparatively high and a second part with a comparatively low melting point, which parts form a welded joint with mutually facing ends. The first part merges into a narrowing end having a length L and having a circumference O at the transition, which length L is at least one tenth of the circumference O, while the end is embedded at least partly in the end of the second part. This induction has the advantage that the current supply conductor can be manufactured more efficiently and with less wastage.

REFERENCES:
patent: 3363133 (1968-01-01), Harris et al.
patent: 5424609 (1995-06-01), Geven et al.

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