Mercury switch activated radio

Details Mercury switch activated radio Mercury switch activated radio

1977-08-17

1979-06-12

Griffin, Robert L.

Electricity: circuit makers and breakers

Multiple circuit control

Pivoted contact

200 6147, 200 6152, 200220, 325492, H04B 108, H04B 116

Patent

active

041581733

ABSTRACT:
A transistor radio includes a mercury switch mounted in a fixed position within an outer housing and connected to the power circuitry of the radio. The housing has a plurality of flat surfaces to permit it to be maintained in a number of different stable positions on a supporting surface, and the mercury switch is moved between circuit activating positions, to turn the radio "on", and circuit deactivating positions, to turn the radio "off", by merely changing the position of the housing on the supporting surface. Most preferably the radio includes extension arms, or knobs, connected to the circuitry, and extending through a front wall of the housing to provide for the usual tuning and audio control. These extension arms can also be employed to facilitate different positioning of the radio as may suit the mood of the user, or as is dictated by the surrounding environment.

REFERENCES:
patent: 2883523 (1959-04-01), Meserow
patent: 3122847 (1964-03-01), Redfield et al.
patent: 3161738 (1964-12-01), Hall
patent: 3683130 (1972-08-01), Kahn
patent: 3743370 (1973-07-01), Lindsay et al.

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