Safety switch device

Claim 1

A SAFETY SWITCH DEVICE FOR USE WITH AN ELECTRIC SWITCH BOX HAVING A PAIR OF VERTICALLY SPACED ACTUATING "START" AND "STOP" PLUNGERS THAT ARE ALTERNATELY DEPRESSED TO CONTROL THE FLOW OF ELECTRIC CURRENT THROUGH AN ELECTRIC CIRCUIT ASSOCIATED WITH SAID SWITCH BOX, COMPRISING: A CUP-SHAPED HOUSING SECURABLE TO SAID SWITCH BOX HAVING A FRONT WALL CARRIED BY A PLURALITY OF SIDE WALLS FORMED WITH AN OPENING, AN ELONGATED ROCKER WITHIN SAID HOUSING HAVING A CONCAVO-CONVEX END PORTION EXTENDING THROUGH SAID OPENING AND DISPOSED TO BE MANUALLY DEPRESSED ON THE CONVEX SURFACE AND TO BE MANUALLY PULLED ON THE CONCAVE SURFACE THEREOF, SAID ROCKER BEING FORMED WITH A PAIR OF SPACED SPHERICALLY-SHAPED KNOBS FOR INDIVIDUAL SINGLE POINT CONTACT WITH SAID PLUNGERS RESPECTIVELY, A PIVOT PIN CONNECTED TO THE SIDE WALL OF SAID HOUSING AND TO SAID ROCKER TO PERMIT THE LATTER TO PIVOT WITHIN SAID HOUSING FOR ALTERNATE OPERATION OF SAID ACTUATING "START" AND "STOP" PLUNGERS, AND PADLOCK HASP RECEIVING MEANS FORMED IN ONE OF THE SIDE WALLS OF SAID HOUSING TO RECEIVE A PADLOCK HASP ONLY WHEN SAID ROCKER IS DEPRESSED TO ACTUATE SAID "STOP" PLUNGER AND THEREBY PREVENT SAID ROCKER FROM BEING PULLED TO OPERATE SAID "START" PLUNGER.