Portable electric hair dryer

Details Portable electric hair dryer Portable electric hair dryer

1988-08-22

1990-01-23

Shoop, Jr., William M.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

34 97, 219373, H05B 102

Patent

active

048960217

ABSTRACT:
A portable electric hair dryer wherein the housing contains an electric motor for an impeller which induces the flow of air from an inlet of the housing, along an electric heater in the housing and to and through an outlet of the housing. The casing of the motor is surrounded by a ring-shaped diffuser with stationary guide vanes which uniformize the flow of air toward the heater. The controls of the motor are mounted on a circuit board which carries one or more triacs, diodes and/or other electronic components which are heated when connected with a source of electrical energy and must be cooled when the hair dryer is in use. The heatable electronic component or components are mounted on an extension of the circuit board, and such extension is installed directly in the diffuser between two neighboring guide vanes. To this end, one of the guide vanes is removed or omitted and the electronic component or components take the place of the missing guide vane.

REFERENCES:
patent: 1816055 (1931-07-01), Pfeifer
patent: 3383779 (1968-05-01), Trouilhet
patent: 3857016 (1974-12-01), Meyer et al.
patent: 4260875 (1981-04-01), Walter et al.
patent: 4711988 (1987-12-01), Thaler et al.
patent: 4767914 (1988-08-01), Glucksman

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