Combined enclosure and flux return means for potted coils

Claim 1

A COIL ARRANGEMENT COMPRISING A BOBBIN HAVING A APERTURE THERETHROUGH, A COIL ON SAID BOBBIN; ENCAPSULATING MATERIAL SURROUNDING SAID COIL AND BOBBIN; A MOUNTING ELEMENT FORMED OF FERROUS MATERIAL IN THE SHAPE OF AN ENCIRCLING STRIP EXTENDING AROUND SAID ENCAPSULATING MATERIAL, SAID ENCAPSULATING MATERIAL BEING FLAME RESISTANT AND OF HIGH IMPACT RESISTANCE SAID STRIP BEING FIXED TO SAID ENCAPSULATING MATERIAL AND PROVIDING A PAIR OF RETURN FLUXPATHS FOR THE COIL, SAID ENCAPSULATING MATERIAL BEING EXPOSED ON THE OPPOSITE SIDES OF SAID STRIP, SAID STRIP HAVING A GENERALLY CONSTANT WIDTH AND A SUFFICIENTLY LES THICKNESS THAN WIDTH THAT IT IS CAPABLE OF BEING BENT TO ANGLES APPROXIMATING 90 DEGREES WITHOUT FRACTURE OF THE STRIP; AN INTERNALLY THREADED COLLER FIXED TO SAID STRIP, SAID COLLAR HAVING AN INTERNAL SHOULDER AGAINST WHICH AN EXTERNALLY THREADED CONDUIT CAN BE TIGTLY SCREWED; AND LEAD WIRES EXTENDING FROM SAID COIL THROUGH SAID ENCAPSULATING MATERIAL, STRIP AND COLLAR; SAID ENCAPSULATING MATERIAL, STRIP AND COLLAR SHIELDING AND PROTECTIVE SAID LEAD WIRES.