Electricity: circuit makers and breakers – Multiple circuit control – Multiple switch
Patent
1977-08-11
1979-05-01
Scott, James R.
Electricity: circuit makers and breakers
Multiple circuit control
Multiple switch
200 5E, 200238, 200275, 200283, H01H 926, H01H 114
Patent
active
041525566
ABSTRACT:
The noise suppression contact of a keyboard with a row of pushbutton-operated slide switches consists of a flat U-shaped contact spring forming a double armed lever one arm of which is actuated by the stop slider and the other contacting a fixed contact. The pushbutton operators are mutually interlocked by the stop slides. The noise suppression contact assembly is activated momentarily during the change over from one desired switching mode of operation to another switching mode of operation thereby preventing disturbing "clicks" caused by the shorting of an amplifier input.
REFERENCES:
patent: 3646283 (1972-02-01), Hansen
patent: 3739110 (1973-06-01), Constable
patent: 3882056 (1975-05-01), Nakasone
patent: 4010382 (1977-03-01), Nishioka et al.
patent: 4095059 (1978-06-01), Nishioka et al.
IT&T Industries, Inc.
Michals William J.
Raden James B.
Scott James R.
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