Hermetic electrical penetrator

Details Hermetic electrical penetrator Hermetic electrical penetrator

1975-09-25

1976-12-21

Lake, Roy

Geometrical instruments

174 11R, 174151, 339 94A, 339192R, 339218R, 339278M, H01R 304

Patent

active

039985156

ABSTRACT:
A hermetic electrical penetrator comprising a shell mounted in a single penetrator plate. A pair of axially spaced sealing members are sealed inside the shell defining a leak sensing chamber therebetween. One or more electrical contacts extend longitudinally through the sealing members in the shell. A sensing port in the wall of the shell communicates with the sensing chamber so that any leakage of gas through the shell can be detected by measuring the pressure differential between the inside and the outside of the shell. Preferably the sealing members are glass beads, and a porous ceramic spacer extends between the beads substantially filling the leak sensing chamber so that pressure differentials may be more easily detected.

REFERENCES:
patent: 3803531 (1974-04-01), Sorensen
patent: 3828118 (1974-08-01), Bushek et al.

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