Multiple push-button switch arrangement

Details Multiple push-button switch arrangement Multiple push-button switch arrangement

1987-11-24

1988-12-20

Scott, J. R.

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

H01H 920

Patent

active

047926490

ABSTRACT:
A plurality of switch elements are disposed within a casing made of synthetic resin. Each of the switch elements is changeable between a normally-open state and a closed state. A plurality of movable stems are made of synthetic resin. At least parts of the stems extend in the casing and engage the respective switch element. The switch elements are changed between the open and closed states in accordance with movements of the stems respectively. The switch elements can be locked in the closed states. Any one of the switch elements can be unlocked and moved from the closed state when another switch element is changed from the open state to the closed state. At least two of the switch elements are prevented from being simultaneously locked in the closed positions. A mechanism allowing the locking process and unlocking process includes a plate made of synthetic resin and extending within the casing. A mechanism allowing the simultaneously lock preventing process includes a plate made of synthetic resin and extending within the casing. The plates extend in parallel.

REFERENCES:
patent: 3100822 (1963-08-01), Vermeulen
patent: 3185803 (1965-05-01), Driscoll
patent: 3219766 (1965-11-01), Sayward et al.
patent: 3731032 (1973-05-01), Schantz
patent: 3970806 (1976-07-01), Distler
patent: 4052580 (1977-10-01), Stanish
patent: 4700586 (1987-10-01), Miura

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