Heating unit for hair curling

Claim 1

A HEATING UNIT FOR CURLING HAIR COMPRISING A TUBULAR BODY OF MATERIAL HAVING GOOD HEAT CONDUCTIVITY, A HEAT STORING CORE POSITIONED INTERNALLY IN AND RUNNING LENGTHWISE OF SAID BODY, AN ELECTRICALLY CONDUCTIVE CAP ON SAID CORE AT ONE END, AN ELECTRIC RESISTANCE WIRE HEATING ELEMENT WRAPPED ON SAID CORE AND HAVING ONE END ELECTRICALLY CONNECTED WITH SAID CAP, A NON-CONDUCTIVE PLUG ELEMENT POSITIONED IN SAID BODY ADJACENT SAID ONE END OF SAID CORE AND HAVING A SOCKET ON THE SIDE CONFRONTING SAID CORE WHICH FITS OVER AND RECEIVES SAID CAP, MEANS SUPPORTING THE OTHER END OF SAID CORE AND COOPERATING WITH SAID SOCKET TO CENTER SAID CORE IN SAID TUBE, MEANS PROVIDING AND ELECTRICAL TERMINAL FOR CONNECTING THE OTHER END OF SAID HEATING ELEMENT WITH AN EXTERNAL SOURCE OF POWER, AND ELECTRICAL CIRCUIT MEANS MOUNTED ON SAID PLUG ELEMENT INCLUDING A CONTACT IN SAID SOCKET ENGAGING SAID CAP, A CONDUCTOR CONNECTED WITH SAID CONTACT AND PROCEEDING TO THE SIDE OF THE PLUG ELEMENT OPPOSITE FROM SAID SOCKET, AND A NORMALLY CLOSED THERMOSTATIC SWITCH ON SAID OPPOSITE SIDE IN SERIES WITH SAID CONDUCTOR AND OPERABLE TO OPEN IN RESPONSE TO HEAT GENERATED BY SAID ELEMENT.