Multiple interface safety switch actuating mechanism

Details Multiple interface safety switch actuating mechanism Multiple interface safety switch actuating mechanism

1992-02-03

1993-05-18

Scott, J. R.

Electricity: circuit makers and breakers

Special application

Actuated concurrently with operation or use of art device

H01H 316

Patent

active

052123596

ABSTRACT:
A multiple interface safety switch actuating mechanism, operable by actuators on the doors of a cabinet, is provided. The switch actuating mechanism, through abutting contact with a biased shaft activated switch, enables an apparatus, contained within the cabinet, when the doors of the cabinet are closed and disables the apparatus, contained within the cabinet, when a door of the cabinet is open. The switch actuating mechanism is maintained in a first position when both doors are open, in a second position upon the closing of one door and in a third position upon the closing of both doors. Accidental activation of the switch actuating mechanism is prevented by a slotted plate mounted in front of the switch actuating mechanism to preclude other than the door actuators from activating the switch actuating mechanism.

REFERENCES:
patent: 2408213 (1946-09-01), Huber
patent: 3428766 (1969-02-01), Kauffman
patent: 3815990 (1974-06-01), Newcomb et al.
patent: 3829644 (1974-08-01), Annettoni
patent: 3881077 (1975-04-01), Piber
patent: 3887777 (1975-06-01), Nishino
patent: 4300025 (1981-11-01), Prada
patent: 4707684 (1987-11-01), Janke et al.
patent: 4891626 (1990-01-01), Neuman

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