Enclosed circuit interrupting structure with improved latching mechanism

Claim 1

AN ENCLOSED CONTROL STRCUTURE COMPRISING AN ENCLOSURE, SAID ENCLOSURE COMPRISING A RECEPTACLE HAVING A RECEPTACLE OPENING, AN OPENABLE COVER STRUCTURE SUPPORTED ON SAID RECEPTACLE AND MOVABLE TO OPEN AND CLOSE SAID RECEPTACLE OPENING, A CONTROL DEVICE SUPPORTED WITHIN SAID RECEPTACLE AND COMPRISING A PAIR OF COOPERABLE CONTACTS, AN EXTERNALLY OPERABLE OPERATING MEMBER OPERABLE TO AN "OFF" POSITION TO OPEN SAID CONTACTS AND TO AN "ON" POSITION TO CLOSE SAID CONTACTS, A LATCH MEMBER PIVOTALLY SUPPORTED ON A FIXED PIVOT ON SAID RECEPTACLE, RESILIENT MEANS BIASING SAID LATCH MEMBER IN A FIRST PIVOTAL DIRECTION TOWARD A FIRST POSITION, WITH SAID OPERATING MEMBER IN THE "OFF" POSITION AND SAID COVER STRUCTURE IN THE OPEN POSITION, SAID RESILIENT MEANS MAINTAINING SAID LATCH MEMBER IN SAID FIRST POSITION WHEREIN SAID LATCH MEMBER IS IN THE PATH OF MOVEMENT OF SAID OPERATING MEMBER TO ENGAGE SAID OPERATING MEMBER TO PREVENT OPERATION OF SAID OPERATING MEMBER TO THE "ON" POSITION, WHEN SAID OPERATING MEMBER IS IN THE "OFF" POSITION AND SAID COVER STRUCTURE IS MOVED TO THE CLOSED POSITION, SAID COVER STRUCTURE ENGAGING SAID LATCH MEMBER AND PIVOTING SAID LATCH MEMBER AGAINST THE BIAS OF SAID RESILIENT MEANS IN A SECOND PIVOTAL DIRECTION OPPOSITE SAID FIRST PIVOTAL DIRECTION TO A SECOND POSITION, SAID LATCH MEMBER IN SAID