Miniature casing pressure operated switch with resilient contact spacer and short circuit prevention structure

Claim 1

AN ELECTRIC SWITCH COMPRISING A PAIR OF ELONGATED CONDUCTIVE TERMINAL MEMBERS, AN INSULATIVE RESILIENT SPACER RING MEMBER DISPOSED BETWEEN RESPECTIVE GENERALLY CIRCULAR AND PARALLEL PORTIONS OF SAID TERMINAL MEMBERS, RESPECTIVE FINGERS EXTENDING OUTWARDLY OF SAID TERMINAL PORTIONS AND WITHIN SAID RING, RESPECTIVE END PORTIONS OF SAID FINGER HAVING CONTACT MEANS THEREON, EACH OF SAID FINGER END PORTIONS DISPOSED BETWEEN THE OTHER FINGER END PORTION AND THE TERMINAL PORTION FROM WHICH SAID OTHER FINGER EXTENDS SO AS TO ENABLE SAID CONTACT MEANS NORMALLY TO BE ENGAGED WHEN SAID SPACER MEMBER IS FREE OF EXTERNAL FORCE, EACH OF SAID TERMINAL PORTIONS HAVING AN OPENING WITH THE END PORTION OF THE FINGER EXTENDING FROM THE OPPOSING TERMINAL PORTION ALIGNED THEREWITH AND MOVABLE THERETHROUGH SO AS TO SAFEGUARD AGAINST A SHORT BETWEEN SAID TERMINAL PORTIONS WHEN SAID CONTACT MEANS ARE DISENGAGED, AN INSULATIVE FLEXIBLE UNITARY CASING CLOSELY SURROUNDING AND THEREBY SUPPORTING SAID MEMBERS SO AS TO ENABLE SAID TERMINAL MEMBES TO BE URGED TOWARD EACH OTHER BY ACTUATING FOREC ON SAID CASING AND TO BE URGED APART BY THE RESILIENT FORCE OF SAID SPACER RING MEMBER WHEN SAID ACTUATING FORCE IS RELEASED, AND A CIRCUIT CONNECTING PORTION OF EACH TERMINAL MEMBER PROTRUDING THROUGH SAID CASING.