Electricity: conductors and insulators – Insulators – Through wall or plate
Patent
1987-06-16
1988-02-23
Askin, Laramie E.
Electricity: conductors and insulators
Insulators
Through wall or plate
376203, 376463, H02G 322, H01B 1730, G21C 1304
Patent
active
047272236
ABSTRACT:
An electrical penetrator employs metal-sheathed insulated conductors that extend completely through and are sealed within a tubular housing. A filler block is disposed centrally within the housing and is surrounded by elastomeric material of a sealing member. Plugs are inserted into opposite ends of the housing so as to compress the elastomeric material and are sealed within the housing. Hollow end caps threaded into the opposite ends of the housing urge the plugs toward the elastomeric material. The metal-sheathed conductors extend through the hollow end caps and through longitudinal passages in the plugs and the sealing member. The conductors are sealed in the sealing member by the elastomeric material, are sealed in the plugs by tube fitting assemblies threaded into the plugs about the conductors, and are sealed in the hollow end caps by potting material. Expansion or swelling of the elastomeric material is accommodated by a space in the housing but is resiliently restrained by a metal spring to prevent seal failure due to a compression set of the elastomeric material.
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Lee Lawrence C.
Traylor Francis T.
Askin Laramie E.
TRW Inc.
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