Telephone surge protector

Details Telephone surge protector Telephone surge protector

1991-05-24

1993-03-02

Dwyer, James L.

Telephonic communications

Centralized switching system

Plug and socket

379412, 379437, 379451, 361119, 361124, H04M 500, H04M 100, H02H 906, H02H 100

Patent

active

051916053

ABSTRACT:
A telephone protector comprises an encapsulated bidirectional voltage sensitive switch having three terminals protruding therefrom, one of the terminals being a grounding terminal. There is an elongated shorting bar substantially orthogonal to the three terminals and a metal fusible pellet in direct physical contact with both the grounding terminal and the shorting bar. There is a spring which impels the shorting bar into contact with the other two terminals when the fusible pellet melts.

REFERENCES:
patent: 4800588 (1989-01-01), Poster, Jr.
patent: 4901188 (1990-02-01), Gilberts
patent: 4903295 (1990-02-01), Shannon et al.
patent: 4905119 (1990-02-01), Webb
patent: 4958254 (1990-09-01), Kidd et al.

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