Stoves and furnaces – Hot-air furnaces – Liquid or gaseous fuel
Patent
1993-04-26
1995-07-04
Jones, Larry
Stoves and furnaces
Hot-air furnaces
Liquid or gaseous fuel
126104A, 126110D, 126114, 126 92G, 126 91A, F24H 300
Patent
active
054291127
ABSTRACT:
A gas radiant tube heater and method of operating the heater. The heater has a housing and a radiant tube mounted within the housing. The heater further has a modular control box mounted within the housing in which serviceable parts can be easily removed as a unit and replaced. The housing and control box are sealed against the elements for outdoor as well as indoor use. The control box is divided into two chambers, with the inlet air flowing from a first chamber into a second chamber. The first chamber is subjected to a vacuum pressure, in which the heat sensitive equipment is mounted, and the second chamber is subjected to a positive pressure, in which the combustible gas and air mix prior to combustion. The heater further has a pressure switch to shut off the gas supply if the air flow through the heater is blocked, and a flame sensor to shut off the gas supply if the ignition element fails to ignite the air/gas mixture.
REFERENCES:
patent: 2226816 (1940-12-01), Hepburn
patent: 2386115 (1945-10-01), Holthouse
patent: 3140706 (1964-07-01), Block et al.
patent: 3828762 (1974-08-01), Duzey
patent: 3980069 (1976-09-01), Butlak et al.
patent: 4053279 (1977-10-01), Eichenlaub
patent: 4869230 (1989-09-01), Fletcher et al.
patent: 5253635 (1993-10-01), Overall et al.
RV Series Vented Radiant Tube Heater Operation, Installation Manual (Feb. 1991).
RTP Series Unvented or Vented Radiant Tube Heater Operation, Installation Manual Sun Technology Corp., Shelby Twp., Mich. (no date).
Design & Engineering Guide-Latest Technology Vacuum Tube Heaters, Ray-Tec, Sun Technology Corp., Shelby Twp., Mich. (Aug. 1990).
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