Electrical vented handpiece

Claim 1

A hand-held device having an electrically heated tip for applying heat to an object, said device being selectively useful such as for decorative burning, etching, sealing, and cutting, and comprising in combination: (a) an exposed metal electrical resistance heating element forming a wire tip, (b) terminal electrodes affixed to the ends of said heating element, said electrodes being connected through suitable leads to a source of electrical power to provide electrical energy to heat said tip, (c) a metallic elongated and tubular handle, said handle being open at its forward and rear ends, (d) an insulator mounting receiving said electrodes in fixed relation and disposed in said forward end of said handle to position said electrodes and said tip adjacent said forward end of said handle with said tip extending forwardly of said forward end, (e) said handle having a plurality of raised and relatively-spaced longitudinally-extending vanes formed on the inner surface thereof, thereby forming elongated air spaces between said insulator and the inner surface of said handle, said vanes extending longitudinally within the tubular handle between said open forward end thereof, (f) the front end of said air spaces being open to allow a flow of air to enter said air spaces, (g) a plurality of openings formed in the rear of said tubular handle communicating with elongated air spaces from by said internal vanes whereby residual heat generated by said tip is vented from the rear end of said handle through said rear openings by said air flow, and thereby tend to maintain the temperature of said handle at a more comfortable level when the device is being used, and, (h) a plurality of said vanes extending forwardly of said tubular handle as prongs engageable by said insulator to advance said insulator a distance from the forward end of said handle.