Stoves and furnaces – Tool having fluid fuel burner – Soldering iron
Patent
1988-08-01
1990-05-01
Green, Randall L.
Stoves and furnaces
Tool having fluid fuel burner
Soldering iron
126401, 431255, 431266, B23K 302
Patent
active
049209523
ABSTRACT:
In a heat processing apparatus in which a gas/air mixture is piezoelectrically ignited to heat the combustion catalyst by the ignited flame for taking place subsequent flameless catalytic combustion of the gas mixture, a portion of the gas in the flaming combustion space is directly discharged to the outside not passing through the combustion catalyst upon flame ignition, while the entire amount of the gas in the combustion space is introduced to the combustion catalyst after reaching the catalytic combustion, by using a discharge gas control mechanism interlocked with the operation of the ignition button, as well as the opening degree of the external air ports is changed variably so as to provide suitable gas/air ratios upon ignition, flame extinguishment and usual catalytic combustion respectively by the air flow rate control member also interlocked with the ignition button.
REFERENCES:
patent: 4648380 (1987-03-01), Nakajima
patent: 4688551 (1987-08-01), Nakajima
patent: 4691691 (1987-09-01), Patenaude
patent: 4785793 (1988-11-01), Oglesby et al.
Green Randall L.
Keller Michael L.
Longacre James R.
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