Electrical vented handpiece

Details Electrical vented handpiece Electrical vented handpiece

1986-04-22

1989-01-17

Bartis, Anthony

Electric heating

Heating devices

Tool or instrument

16116R, 30140, 219227, 219229, 219533, 228 51, H05B 100, H05B 300, B23K 304

Patent

active

047989343

ABSTRACT:
A hand-held electrically heated tool for applying heat to an object includes an elongated metallic tubular handle open at its forward and rear ends and having a plurality of raised relatively-spaced longitudinally extending vanes formed on its the inner surface and extending between the forward and rear ends thereof. An exposed metal electrical resistance heating element forming a wire tip is mounted in an insulator disposed in the forward end of the handle in engagement with the vanes with the tip extending forwardly of the handle. A spherically concave portion of the insulator reflects heat away from the handle. The vanes extend forwardly of the handle to form prongs spacing the insulator a distance from the forward end of the handle to allow exterior cooling air to enter air spaces defined by the vanes between the insulator and inner surface of the handle, flow the length of the handle, and exit through openings formed in the rear end of the handle by removal of the wall of the handle at discrete areas to expose the vanes and the air spaces therebetween. The outer surface of the handle is fluted to increase heat dissipation and enable comfortable gripping.

REFERENCES:
patent: 1190447 (1916-07-01), Munger et al.
patent: 1572666 (1926-02-01), Marsden
patent: 2033897 (1936-03-01), Jenkins et al.
patent: 2488477 (1949-11-01), Rapaport
patent: 2498328 (1950-02-01), Atkins
patent: 2763762 (1956-09-01), Jepson
patent: 2997684 (1961-08-01), Cole
patent: 3121781 (1964-02-01), Schoenwald
patent: 3141088 (1964-07-01), Johnson
patent: 3526750 (1970-09-01), Siegel
patent: 3558854 (1971-01-01), Siegel et al.

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