Ceramic discharge vessel having tungsten alloy feedthrough

Details Ceramic discharge vessel having tungsten alloy feedthrough Ceramic discharge vessel having tungsten alloy feedthrough

2005-01-31

2008-11-18

Roy, Sikha (Department: 2879)

Electric lamp and discharge devices

With gas or vapor

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

C313S624000, C313S625000, C313S567000

Reexamination Certificate

active

07453212

ABSTRACT:
A tungsten alloy feedthrough for ceramic discharge vessels is used to form a hermetic seal with the ceramic body of the discharge vessel. The tungsten alloy comprises tungsten alloyed with a metal selected from titanium, vanadium or a combination thereof. The alloy may be formulated to have a coefficient of thermal expansion that closely matches that of the ceramic to prevent cracking. Preferably, the tungsten alloy contains from about 10 to about 35 wt. % of a metal selected from Ti, V, or a combination thereof.

REFERENCES:
patent: 3882346 (1975-05-01), McVey
patent: 4366410 (1982-12-01), Buher
patent: 4531074 (1985-07-01), Nagy et al.
patent: 5424609 (1995-06-01), Geven et al.
patent: 5810635 (1998-09-01), Heider et al.
patent: 6774547 (2004-08-01), Zaslavsky et al.
patent: 2005/0082984 (2005-04-01), Wada et al.
patent: 1 195 214 (2002-04-01), None
patent: 1 193 734 (2004-04-01), None
patent: 1 494 839 (1977-12-01), None
ASM Handbook, vol. 3 Alloy Phase Diagrams, 2-381 (ASM International 1992).

Affiliated with

Also associated with

Rating

Ceramic discharge vessel having tungsten alloy feedthrough does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ceramic discharge vessel having tungsten alloy feedthrough, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ceramic discharge vessel having tungsten alloy feedthrough will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4030764