Multiple-flux electrical reed relay

Claim 1

AN ELECTRIC RELAY COMPRISING A SINGLE SOLID-WOUND COIL MEANS CONSTITUTED OF A PAIR OF HOLLOW BUCKING TIGHTLY WOUND ELECTRICAL COILS HAVING EQUAL NUMBERS OF TURNS, INTERWOUND AND ARRANGED IN TIGHTLY COUPLED RELATIONSHIP WHEREBY AT LEAST MAJOR PORTIONS OF THE FLUX PATTERNS THEREOF MAY OCCUPY SUBSTANTIALLY THE SAME PREDETERMINED CENTRAL CORE SPACE, SAID COILS BEING CAPABLE OF NULLING EACH OTHER; AND A FLUX-OPERATED ELECTRIC SWITCH MEANS DISPOSED IN SAID PREDETERMINED SPACE AND COMPRISING CONTACTS AND MAGNETIC BLADES CARRYING THE CONTACTS, AT LEAST ONE OF SAID BLADES BEING MOVABLE AND RESPONSIVE BY MOVEMENT TO FLUX FROM SAID COILS FOR SHIFTING AT LEAST ONE CONTACT TOWARD AND AWAY FROM THE OTHER CONTACT AND EFFECTING ACTUATION OF THE SWITCH AS ONE COIL IS ENERGIZED AND DE-ENERGIZED WHILE THE OTHER COIL REMAINS ENERGIZED, SAID COILS BEING WOUND BIFILAR FASHION AND HAVING A COMMON HOLLOW-CORE BOBBIN THE CENTRAL CORE SPACE OF WHICH COMPRISES THE BORE SPACE OF THE COILS, AND SAID SWITCH MEANS BEING DISPOSED IN THE SAID COMMON HOLLOW SPACE, SAID COILS BEING LAYER WOUND AND HAVING SUBSTANTIALLY THE SAME NUMBER OF TURNS OF EQUAL DIAMETER, LOCATED IN ALTERNATION, IN EACH LAYER; MEANS OUTSIDE OF THE COILS, CONSTITUTING A RETURN MAGNETIC CIRCUIT FOR THE FLUX-OPERATED SWITCH MEANS, SAID MEANS COMPRISING A GENERALLY CYLINDRICAL CAN OF MAGNETIC MATERIAL, CONSTITUTING A CASTING FOR THE RELAY, SAID CAN HAVING AN INTEGRAL CLOSED END COMMENSURATE IN SIZE WITH ITS DI-