Multiple pushbutton switch and interlock assembly

Details Multiple pushbutton switch and interlock assembly Multiple pushbutton switch and interlock assembly

1987-06-10

1988-05-10

Scott, J. R.

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

200 5EA, H01H 920

Patent

active

047437146

ABSTRACT:
A multiple pushbutton switch comprising a lower insulative housing; a cover member mounted over the housing to form an accommodating space; a plurality of equally spaced selecting contact plates retained by the housing; a plurality of equally spaced J-shaped contacting springs accommodated by the housing and a second arm of each contacting spring is in alignment with the selecting contact plate; an L-shaped contact plate positioned in the housing with a first plate contacted with the first arms of each J-shaped contacting springs; a plurality of pushbuttons positioned within the housing to cause the closing and/or opening of one or more pair of contacts when any of the pushbuttons are depressed in their downward positions and an interlock engaging mechanism movably fixed within the accommodating space is capable of latching the depressed pushbutton in a downward position and prevent the simultaneous depression of more than one pushbutton.

REFERENCES:
patent: 3271530 (1966-09-01), Wirsching
patent: 3476890 (1969-11-01), Powell
patent: 3719786 (1973-03-01), Mallett et al.
patent: 3780236 (1973-12-01), Gross

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