Electric heating – Heating devices – Tool or instrument
Patent
1988-10-21
1990-03-20
Paschall, M. H.
Electric heating
Heating devices
Tool or instrument
132238, A45D 2400
Patent
active
049103814
ABSTRACT:
A hair drying device comprises a rotatable curling iron, a reversible motor for driving the curling iron, a reversing switch connected to the reversible motor for causing the motor to reverse its direction of rotation, and a hair dryer including an outflow nozzle for directing hot air produced by the hair dryer tangentially at hair wound upon the curling iron. The outflow nozzle is movable between first and second positions. The outflow nozzle and the reversing switch are coupled together so that the curling iron is caused to rotate in one direction when the outflow nozzle is in its first position, and in an opposite direction when the outward nozzle is in its second position. An electric circuit includes a first switch which is actuated directly by the reversing switch and a second switch which is actuated by the reversing switch after a predetermined time delay, preferably by an RC circuit. As a result, when the reversing switch is actuated by movement of the outflow nozzle, the motor is first caused to stop rotating in one direction, and after a predetermined time delay it is caused to rotate in an opposite direction.
REFERENCES:
patent: 3549971 (1970-12-01), Van Patten
patent: 3581174 (1971-05-01), Hammer
patent: 3584281 (1971-06-01), Reeves
patent: 3890984 (1975-06-01), Lesetar
patent: 4166472 (1979-09-01), Battaglia
patent: 4234834 (1980-11-01), Jennings
patent: 4409998 (1983-10-01), Bauer
patent: 4438378 (1984-03-01), Tanaka
ABC-Elektrogerate Volz GmbH & Co.
Evans Geoffrey S.
Paschall M. H.
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