Bridge lifter module

Details Bridge lifter module Bridge lifter module

1979-09-14

1980-12-02

Brigance, Gerald L.

179 1PC, 179 17R, H04M 1300

Patent

active

042373468

ABSTRACT:
An improved telephone circuit protector module incorporating a bridge lifter switching means which permits direct connection of party line subscriber circuits to a terminal block with the elimination of prior art saturable bridge lifters normally mounted upon a main distributing frame, and accompanying cable runs. The bridge lifter module comprises a solid state thick film circuit formed upon a ceramic substrate, suitably encapsulated, and is sufficiently small in overall size to fit within a connecting module which engages the electrically conductive spring fingers present on certain types of known connector blocks.

REFERENCES:
patent: 3073908 (1963-01-01), Hochgraf et al.
patent: 3189689 (1965-06-01), Hochgraf
patent: 3284575 (1966-11-01), Howard
patent: 3703610 (1972-11-01), Ebbe et al.
patent: 3881068 (1975-04-01), Jones, Jr. et al.
patent: 4166931 (1979-09-01), MacPherson et al.

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