Hair dryer with audible unplug alarm

Details Hair dryer with audible unplug alarm Hair dryer with audible unplug alarm

1991-03-04

1992-09-22

Reynolds, Bruce A.

Electric resistance heating devices

Heating devices

Concentrated heated air stream

392385, 219506, 340655, F24H 302, H05B 102

Patent

active

051492091

ABSTRACT:
A hair dryer that includes a case having a handle and a barrel, and a fan positioned in the barrel and coupled to an electric motor for blowing hair through the barrel. An electrical resistance heating element is disposed in the barrel for generating heat to dry hair, and an electrical cord extends from the handle and terminates in a plug adapted to be removably received in a utility outlet for supplying power to the hair dryer. An operator switch is carried by the handle and connected in series with at least the electric motor across the power lines of the cord. An audible alarm is connected across the switch and in series with the motor across the power conductors of the plug and cord, such that placement of the switch in an open condition, with the plug inserted in a utility outlet, results in current flow through the alarm device and generation of an audible alarm signal.

REFERENCES:
patent: 3505664 (1970-04-01), Morris
patent: 3815110 (1974-06-01), Davidson
patent: 3838385 (1974-09-01), Bloomingdale
patent: 3846777 (1974-11-01), Brown
patent: 4085309 (1978-04-01), Godel et al.
patent: 4542284 (1985-09-01), Thaler et al.
patent: 4550358 (1985-10-01), Crowley et al.
patent: 4687906 (1987-08-01), Fujishama et al.
patent: 4894643 (1990-01-01), Thompson et al.

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