Main switch for tape recorder

Details Main switch for tape recorder Main switch for tape recorder

1981-09-11

1983-04-19

Shepperd, John W.

Electricity: circuit makers and breakers

Combined with or actuated by connector coupling

Multiple circuit control, selective

200 511, 200 6158R, 200155R, H01R 3330

Patent

active

043806910

ABSTRACT:
In a tape recorder provided with a power jack which includes a rod-like conductive member, a relay conductive member insulated from the rod-like conductive member, and an elastic conductive member having elasticity and being capable of moving a first position, at which the elastic conductive member is separated from the relay conductive member by inserting a plug to the power jack, and a second position, at which is in contact with and electrically connected to the relay conductive member, a main switch for the tape recorder comprises a cylindrical rotary member having an inner periphery, an outer periphery and a recess formed in the outer periphery. The rotary member is adapted to snugly fit on the rod-like conductive member of the power jack when inserted thereinto, and is rotatable on and about the rod-like conductive member between a first position, at which the outer periphery and the elastic conductive member are in contact with each other and the elastic conductive member is located in the first position, and a second position, at which the recess corresponds to and face the elastic conductive member to locate the elastic conductive member in the second position.

REFERENCES:
patent: 2991343 (1961-07-01), Norden
patent: 3204053 (1965-08-01), Bilek
patent: 3749447 (1973-07-01), Renaud
patent: 4025738 (1977-05-01), Erwin et al.

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