Hermetically sealed electrical switch with pressure regulating g

Details Hermetically sealed electrical switch with pressure regulating g Hermetically sealed electrical switch with pressure regulating g

1981-10-05

1983-08-30

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

313552, H01H 3366

Patent

active

044018690

ABSTRACT:
A hermetically sealed, partially evacuated switch is maintained at a non-oxidizing residual pressure of from about 10.sup.-1 to 10.sup.2 Torr by inclusion of selected hydrogen gettering metal hydride within the sealed switch envelope. The metal hydride is selected with a hydrogen equilibrium pressure at the switch operating temperature such that the pressure within the switch envelope is maintained in the desired range.

REFERENCES:
patent: 3328545 (1967-06-01), Holliday
patent: 4260934 (1981-04-01), Kuus et al.

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