Compact metallic bellows

Electric heating – Metal heating – By arc

Patent

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Details

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

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