Stoves and furnaces – Stoves – Heating
Patent
1975-09-22
1976-09-14
Favors, Edward G.
Stoves and furnaces
Stoves
Heating
110 97D, 431353, F24C 300
Patent
active
039800695
ABSTRACT:
An insert is adapted to be arranged within the marginal end portion of a heat-radiating tube. The insert has an outer surface comprising an alternating series of peaks and valleys. The insert serves to insulate the tube marginal portion from the direct heat of a flame directed into and confined within the insert. The outer surface of the insert defines with the tube inner surface, a plurality of passageways. In use, air drawn into the tube through these passageways is preheated, and subsequently directed to oxidize the flame tip.
REFERENCES:
patent: 2115769 (1938-05-01), Harris
patent: 2410881 (1946-11-01), Hunter
patent: 2641206 (1953-06-01), Stout
patent: 2847953 (1958-08-01), Ernst
patent: 3066727 (1962-12-01), Galvin
Budden Robert G.
Butlak Eugene W.
Favors Edward G.
Roberts-Gordon Appliance Corporation
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