Telephone hook switch

Details Telephone hook switch Telephone hook switch

1985-03-14

1987-09-08

Brown, Thomas W.

Telephonic communications

Terminal

Switch or switch actuator structure

379429, H04M 108

Patent

active

046929401

ABSTRACT:
A telephone hook switch arrangement includes a base assembly (1) and a T-shaped hook switch lever 3, which is substantially T-shaped. One end of the cross-piece of the T is pivoted to a downwardly-extending portion (2) of the base assembly. At the upper end of the leg of the T, pins (e.g. 8) are on each side, each fits under the end of a moveable contact (e.g. 5). The lever also has a spring strip 10 integral with it and normally under tension. The drawing shows the arrangement when off-hook, in which case the spring strip (10) urges the arrangement to the condition shown. When on-hook, the handset, via another linkage (not shown) urges the lever (3) to the state shown in dashed lines, when the contacts are open.

REFERENCES:
patent: 3916119 (1975-10-01), Gumb et al.
patent: 4517419 (1985-05-01), Kosten

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