Electrical switch and actuator apparatus

Claim 1

A SWITCH STRUCTURE COMPRISING A FRAME MEMBER HAVING THE GUIDE BORE THEREIN, AN ACTUATOR PLUNGER RECIPROCABLE IN SAID BORE, AND A SPRING MEMBER IN SAID BORE BIASING SAID PLUNGER OUTWARDLY THEREFROM, A PLURALITY OF STEPPED SURFACES, MORE THAN TWO, FORMED ON SAID PLUNGER, A PLURALITY OF RESILIENT CONTACT CARRIERS MOUNTED IN A SANDWICH STRUCTURE WITH INTERVENING INSULATING INSERTS BETWEEN THE CONTACT CARRIERS, SAID SANDWICH STRUCTURE BEING MOUNTED ON SAID FRAME MEMBER, A FOLLOWER MEMBER FORMED ON ONE OF SAID RESILIENT CONTACT CARRIERS AND IN CONSTANT ENGAGEMENT WITH SAID PLUNGER AND MOVED THEREBY BY THE ENGAGEMENT OF SAID FOLLOWER WITH A DIFFERENT ONE OF SAID STEPPED SURFACES, MEANS BETWEEN SELECTED ONES OF SAID CONTACT CARRIERS INTERMEDIATE THE END ONES FOR LIMITING THE MOVEMENT OF SAID INTERMEDIATE CONTACT CARRIERS RELATIVE TO THE MOVEMENT OF THE OTHER OF SAID CONTACT CARRIERS, SAID MEANS BEING EFFECTIVE TO LIMIT THE MOVEMENT OF AT LEAST ONE OF SAID CONTACT CARRIERS IN ONE DIRECTION AND AT LEAST ANOTHER OF SAID CONTACT CARRIERS IN AN OPPOSITE DIRECTION, SAID STEPPED SURFACES BEING OF A DIFFERENT EXTENT ALONG THE LONGITUDINAL DIMENSION OF SAID PLUNGER, AND ELECTRICAL CONTACTS ON SAID CONTACT CARRIERS.