Space heater

Details Space heater Space heater

2006-02-21

2006-02-21

Paik, Sang (Department: 3742)

Electric resistance heating devices

Heating devices

Vaporizer

C392S314000

Reexamination Certificate

active

07003216

ABSTRACT:
A portable space heater is provided in which a sealed vessel includes electrical heating elements for containing a fluid to be heated. A cooling tube communicates between an outlet at a top of the vessel and an inlet pipe extending down into the vessel. The inlet pipe includes an open top end for operating the vessel substantially at atmospheric pressure. A cooling fan directed at the cooling tube causes steam escaping from the outlet of the vessel to be condensed and returned at the inlet pipe. Plural independent electrical heating elements are provided for accurate control of heat output from the heater. The fan includes an inlet pipe extending upwardly thereabove for drawing air from the top of a space to be heated.

REFERENCES:
patent: 1182688 (1916-05-01), Kirby
patent: 1322761 (1919-11-01), Clark
patent: 1678059 (1928-07-01), D'Ardenne
patent: 2151140 (1939-03-01), Novak
patent: 3523180 (1970-08-01), Kennedy
patent: 3681567 (1972-08-01), Boecher
patent: 3952182 (1976-04-01), Flanders
patent: 3973479 (1976-08-01), Whiteley
patent: 4053732 (1977-10-01), Carter
patent: 4362090 (1982-12-01), Whiteley
patent: 4628798 (1986-12-01), Tagnon
patent: 5299278 (1994-03-01), Heller

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