Electric resistance heating devices – Heating devices – Concentrated heated air stream
Patent
1989-08-11
1990-11-20
Leung, Philip H.
Electric resistance heating devices
Heating devices
Concentrated heated air stream
34 97, 392385, F24H 304, A45D 2010
Patent
active
049720651
ABSTRACT:
A portable electric hair dryer wherein the hot-air outlet of the housing is connectable with a nozzle having a smaller outlet for directing a concentrated stream of hot air against the hair for drying and/or styling. The maximum achievable output of the heating element in the housing is automatically reduced in response to attachment of the nozzle to the housing to a value such that the temperature of concentrated stream of hot air issuing from the nozzle cannot reach a value which would cause singing or burning of hair. In accordance with a presently preferred embodiment, attachment of the nozzle to the housing results in shifting of a rod-shaped mechanical adjusting member which thereby deactivates one or more stages of a multi-stage switch so that the latter can permit selection of one or more heating element outputs which do not result in overheating of air issuing from the nozzle. The adjusting member is biased toward its inoperative position which it assumes in response to detachment of the nozzle from the housing.
REFERENCES:
patent: 4366368 (1982-12-01), Stephens, III
patent: 4430808 (1984-02-01), Toyomi et al.
patent: 4538362 (1985-09-01), Andis
patent: 4711988 (1987-12-01), Thaler et al.
patent: 4848007 (1989-07-01), Montagnino
Evans Geoffrey S.
Kontler Peter K.
Leung Philip H.
Robert Krups Stiftung & Co. KG.
LandOfFree
Portable electric hair dryer with detachable nozzle does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Portable electric hair dryer with detachable nozzle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable electric hair dryer with detachable nozzle will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-455322