Water supply device for humidifier

Details Water supply device for humidifier Water supply device for humidifier

2007-08-07

2007-08-07

Campbell, Thor S. (Department: 3742)

Electric resistance heating devices

Heating devices

Continuous flow type fluid heater

C392S465000, C392S441000

Reexamination Certificate

active

11446060

ABSTRACT:
A water supply device for a humidifier having a water tank for retaining water and a vaporizing chamber for producing water vapor with the water supplied from the water tank, is disclosed in which the water supply device comprises a water tube for supplying the water from the water tank to the vaporizing chamber of the humidifier, the water tube formed of synthetic resin or glass material, and a heating coil disposed around the water tube connected to a electric source for heating the water to a predetermined degree. The water supply device preferably further includes an insulation material wound around the water tube and the heating coil, and a connecting elbow member for securely connecting each end of the water tube to the water chamber and the water tank, respectively.

REFERENCES:
patent: 3275803 (1966-09-01), True
patent: 4139761 (1979-02-01), Obrowski
patent: 4224503 (1980-09-01), Gijzel et al.
patent: 4686354 (1987-08-01), Makin
patent: 5693266 (1997-12-01), Jung

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