Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Vacuum or hermetically sealed type
Patent
1978-02-13
1979-09-18
Broome, Harold
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Vacuum or hermetically sealed type
174 17GF, 200144C, 335201, 335202, H01H 4506, H01H 4514
Patent
active
041684800
ABSTRACT:
A high voltage magnetic relay is enclosed by an insulating housing containing a gas such as sulfur hexafluoride under pressure. The switch terminals removably extend through a wall of the housing and are sealed. The magnet structure is removably connected to the housing by a sealed joint. A fill valve removably extends through a wall of the housing and is sealed thereto. The armature shifts a pivotal arm in the housing between open and closed contact positions.
The housing is formed of a polyamide material having the property of being resistant to deterioriation by fluorine gas, said material being poly hexamethylene terephthalic amide.
REFERENCES:
patent: 3604870 (1971-09-01), De Lucia
patent: 4039984 (1977-08-01), De Lucia
Broome Harold
Torr Laboratories, Inc.
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