Hair dryer with air delivery shroud providing small exhaust open

Details Hair dryer with air delivery shroud providing small exhaust open Hair dryer with air delivery shroud providing small exhaust open

1990-08-03

1992-09-15

Bartis, Anthony

Electric resistance heating devices

Heating devices

Concentrated heated air stream

34 97, 34243R, 132212, 132271, 219222, 392379, A45D 2000, F24H 110, H05B 100

Patent

active

051485125

ABSTRACT:
A hand-held hair dryer includes a shroud surrounding an electric heater and defining a passage for delivery of blown air from a blower to a heated air exhaust opening at an end of the shroud. The shroud is provided with a plurality of smaller air exhaust orifices adjacent to and/or forward of the heater upstream of the air exhaust opening. The orifices are arranged in one or more rows and each orifice is associated with a metallic secondary heat transfer means for improving transfer of heat to the exterior of the shroud. The part of the shroud containing the orifices may be rotatable about the circumference of the shroud to change the direction of air flow. The heat transfer means may comprise a single metal plate containing the plurality of orifices or an individual metallic member associated with each orifice.

REFERENCES:
patent: 3365811 (1968-01-01), Djenner
patent: 3981314 (1976-09-01), Barradas
patent: 3990460 (1976-11-01), Shalvoy

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