Electric heating – Metal heating – By arc
Patent
1991-10-23
1992-10-13
Albritton, C. L.
Electric heating
Metal heating
By arc
21912184, B23K 2600
Patent
active
051553228
ABSTRACT:
A compact metal bellows preferably for converting pressure changes into lar motion, has alternating inner and outer welds accomplished by a laser weld technique. An inner weld fixture is provided for deflecting a portion of the bellows away from the very small beam spot of the laser weld process.
The compact metallic bellows of the present invention is particularly adapted for fitting into a small space and taking advantage of its equal free length and solid length to provide a spring force equal the sum of the spring force of each of the several metallic diaphragms.
REFERENCES:
patent: 4723129 (1988-02-01), Endo et al.
patent: 4760236 (1988-07-01), Stoll
McClellan Gordon R.
Steele, III Robert J.
Albritton C. L.
Gilbert Harvey A.
Hampsch Robert J.
Sliwka Melvin J.
The United States of America as represented by the Secretary of
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