Motor protector having sub-assembled heater and actuator

Claim 1

IN A MOTOR PROTECTOR COMPRISING A TUBE LIKE ENCLOSURE WITH ONE OPEN END, AN IMPROVED ELECTRICAL SUBASSEMBLY COMPRISING, A GENERALLY FLAT HEATER HAVING A PAIR OF LEGS OF SERPENTINE CONFIGURATION JOINED TO ONE ANOTHER AT ONE END AND HAVING TERMINALS AT THE OTHER END, RESPECTIVELY, A FIXED CONTACT ON AND SUPPORTED SOLELY BY SAID HEATER AT THE JUNCTURE OF THE LEGS THEREOF, A BIMETALLIC BLADE HAVING ONE END MECHANICALLY INSULATED SUPPORTED BY SAID HEATER IN ELECTRICALLY SPACED RELATION BUT IN CLOSE GENERALLY PARALLEL HEAT TRANSFER RELATIONSHIP THEREWITH, SAID BLADE HAVING A TERMINAL AT SAID ONE END, AND, A MOVABLE CONTACT SUPPORTED BY SAID BLADE AT THE OTHER END THEREOF ENGAGEABLE WITH SAID FIXED CONTACT TO COMPLETE AN ELECTRICAL CIRCUIT BETWEEN THE TERMINAL ON SAID BLADE AND THE TERMINALS ON SAID LEGS, SAID ELECTRICAL SUB-ASSEMBLY BEING INSERTABLE INTO SAID ENCLOSURE THROUGH THE OPEN END THEREOF WITH SAID TERMINALS EXTENDING OUTWARDLY FOR CONNECTION IN AN ELECTRICAL CIRCUIT.