Curling iron having flattened heating tube and depressions in se

Details Curling iron having flattened heating tube and depressions in se Curling iron having flattened heating tube and depressions in se

1988-07-27

1992-06-09

Bartis, Anthony

Electric heating

Heating devices

Tool or instrument

132229, 132232, 219230, A45D 104, A45D 212, H05B 300

Patent

active

051209330

ABSTRACT:
A curling iron has an elongated heating tube and a clamp secured to an end of the tube which is attached to a handle. The heating tube has at least one generally flat surface having a longitudinal depression between 0.003 and 0.008 inch deep generally in the center of the surface. In one embodiment, the tube has relatively wide top and bottom surfaces which each have such a depression, and relatively narrow, sharply rounded side surfaces having a radius between about 0.03 and 0.1 inch. The clamp has a relatively short clamping surface which extends over a portion of the length of the heating tube. Hair strands which are wrapped around the tube are not curled over the flat surface or surfaces of the tube. The depressed portions of the heating tube do not contact the straight lengths of the hair directly, so that the straight lengths absorb less heat from the tube, and normal operating temperatures are more easily preserved in the heating tube.

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