Change-over switch mechanism for push-button tuner

Details Change-over switch mechanism for push-button tuner Change-over switch mechanism for push-button tuner

1975-08-29

1977-03-29

Tolin, Gerald P.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200 18, 334 53, 338198, H01H 1918

Patent

active

040150968

ABSTRACT:
A change-over mechanism for a pushbutton radio tuner is disclosed. The mechanism has a tuning shaft which transmits rotational movement to a pinion shaft in engagement with a crown gear. The tuning shaft is slidably and rotatably mounted on a frame body. The sliding movement of the tuning shaft enables a switch to be changed-over while the rotational movement enables a tuning operation to be effected.

REFERENCES:
patent: 3166714 (1965-01-01), Hien
patent: 3438662 (1969-04-01), Cowal
patent: 3602051 (1971-08-01), Olah
patent: 3618404 (1971-11-01), Tyzack
patent: 3697921 (1972-10-01), Urwin
patent: 3906806 (1975-09-01), Harlan
patent: 3912896 (1975-10-01), Imamura
patent: 3924220 (1975-12-01), Matsui

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