Wash-tight electromagnetic relay

Details Wash-tight electromagnetic relay Wash-tight electromagnetic relay

1984-06-29

1986-04-01

Broome, Harold

Electricity: conductors and insulators

Boxes and housings

Hermetic sealed envelope type

335202, H02G 1308, H05K 500

Patent

active

045800057

ABSTRACT:
A wash-tight electromagnetic relay having a housing including a bottom part and a cover part. The cover part includes a top side in which a spigot projecting inwardly toward the relay is formed and which defines a borehole extending through the spigot to a spigot bottom having an opening. The borehole opens outwardly from the cover part permitting a ball to be tightly pressed therein. The bottom part is sealed to the cover part by a sealing material and the relay interior is degassed to exhaust gas contaminants, filled with an inert atmosphere and sealed by the ball to prevent the entry of further gas contaminants.

REFERENCES:
patent: 2303359 (1942-12-01), Hothersall
patent: 2454572 (1948-11-01), Roovers
patent: 4437231 (1984-03-01), Zupancic

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