Hand dryer

Details Hand dryer Hand dryer

1998-04-16

2000-03-21

Gravini, Steve

Drying and gas or vapor contact with solids

Material treated by electromagnetic energy

Infrared energy

34565, 34572, 34702, F26B 334

Patent

active

060387866

ABSTRACT:
A wall-mounted hand dryer provides a heated pulsating or modulating air stream to break down a boundary layer of moisture on a user's hands to reduce the drying time. The hand dryer accomplishes this by quickly generating a heated air stream at a maximum temperature that is tolerable to the user, increasing the air stream velocity and turbulence to blow off loose water droplets and break down the boundary layer disposed on the user's hands. The hand dryer includes a blower, heater, a modulator and/or a turbulator for blowing heated air through an air duct. The modulator and turbulator break up the laminar flow of the air stream to provide a modulating or pulsating turbulent flow of air to retard the formation of the boundary layer and dry the hands quickly. The hand dryer further includes an infrared heating source for heating the surface of a user's hands to replace the heat lost as a result of the evaporation of the water from the user's hands. The operation of the hand dryer is controlled by a controller which actuates the components of the hand dryer for a predetermined time period (i.e., 10 seconds) in response to an actuation signal provided by a push button switch or proximity sensors.

REFERENCES:
patent: 2392405 (1946-01-01), Phipps
patent: 2512769 (1950-06-01), Crumrine
patent: 2651705 (1953-09-01), Clemens
patent: 3128161 (1964-04-01), Hudon
patent: 3621199 (1971-11-01), Goldstein
patent: 3643346 (1972-02-01), Lester
patent: 3674980 (1972-07-01), Cox
patent: 3766397 (1973-10-01), Rockson
patent: 3902508 (1975-09-01), Sliman, Sr.
patent: 4087924 (1978-05-01), Fujimoro et al.
patent: 4197448 (1980-04-01), Harigai
patent: 4226251 (1980-10-01), Wall
patent: 4263500 (1981-04-01), Springer et al.
patent: 4323761 (1982-04-01), Hubner
patent: 4419835 (1983-12-01), Strain
patent: 4464906 (1984-08-01), Outlaw
patent: 4536198 (1985-08-01), Strain
patent: 4754769 (1988-07-01), Flynn
patent: 4876435 (1989-10-01), Hawkins
patent: 4914273 (1990-04-01), Matsui
patent: 4991314 (1991-02-01), Allen
patent: 5163234 (1992-11-01), Tsukamoto et al.
patent: 5269071 (1993-12-01), Hamabe et al.
patent: 5282364 (1994-02-01), Cech
patent: 5331747 (1994-07-01), Stanton
patent: 5458458 (1995-10-01), Tada et al.
patent: 5459944 (1995-10-01), Tatsutani et al.
patent: 5507103 (1996-04-01), Merritt
patent: 5599229 (1997-02-01), Claunch et al.
patent: 5668921 (1997-09-01), Essler
Fastaire Hand Dryers, Hand Dryers, Apr. 1, 1997, pp. 1-6.
Exair Corporation, Vortex Tubes-Section 1, Cabinet Coolers-Section 2, Camera Cooler-Section 3, Cold Gun Aircoolant Systems And Accessories-Section 4, Component Cooler-Section 5, Needle Cooler-Section 6, Exair-Amplifiers-Section 7, Exair-Knife-Section 8, Exair-Ionizers-Section 9, Exair-Jets and Nozzles-Section 10.
Web Systems, Inc., The Chinook Ultra-Dryer.TM., 4 pgs. ( Apr. 1997)

Affiliated with

Also associated with

Rating

Hand dryer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hand dryer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hand dryer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-720824