Protector module for telephone systems

Details Protector module for telephone systems Protector module for telephone systems

1975-08-28

1977-01-18

Moose, Harry

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

With longitudinally expansible solid element

317 61, 337 32, H02H 322

Patent

active

040041921

ABSTRACT:
An improved telephone line protection device including means for grounding excessive currents and voltages. The disclosed embodiment includes temperature-actuated resilient means for shorting excessive currents directly to a source of ground potential, without passing such currents through the elements normally present for protecting against excessive voltage surges, which are damaged by carrying excessive currents.

REFERENCES:
patent: 3573695 (1971-04-01), Geyer et al.
patent: 3849750 (1974-11-01), Baumbach et al.
patent: 3947730 (1976-03-01), De Luca et al.

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