Hair setting roller

Details Hair setting roller Hair setting roller

1976-11-08

1978-08-29

Mancene, Louis G.

Toilet

Nail device

Compound tools

219222, A45D 212

Patent

active

041096673

ABSTRACT:
A hair setting roller includes a dielectric cylinder encircled by an electrical resistance magnetic heating element secured to it and adapted to be attracted by a permanent magnet mounted in apparatus having a pair of laterally spaced electric supply contacts. Electrically connected to the opposite ends of the heating element are electric contacts for engaging the supply contacts while the magnet overcomes a force tending to separate the roller and magnet, whereby to heat the heating element electrically. The heating element has a magnetic permeability that decreases as its temperature increases until the attraction of the magnet for the device becomes weaker than the separating force acting on the roller.

REFERENCES:
patent: 116731 (1871-07-01), Marcy
patent: 3209766 (1965-10-01), Dannat
patent: 3250895 (1966-05-01), McNair
patent: 3417760 (1968-12-01), Silver
patent: 3488471 (1970-01-01), Gstalder
patent: 3665939 (1972-05-01), Laing
patent: 3760148 (1973-09-01), Boudouris
patent: 3881086 (1975-04-01), Fleischhauer
patent: 3911935 (1975-10-01), Wallin

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