Stoves and furnaces – Tool heaters – Liquid or gaseous fuel
Patent
1975-01-02
1976-07-06
Dority, Jr., Carroll B.
Stoves and furnaces
Tool heaters
Liquid or gaseous fuel
236 15B, 432 46, 432 49, F24C 312
Patent
active
039676145
ABSTRACT:
In an assembly of fusion furnace and fusion head for applying heat to plastic pieces to be fused, the furnace being fired with gaseous fuel fed through a conduit to a burner head in the furnace from a source of fuel, a temperature sensing probe projects into the furnace. The temperature sensing probe is operatively connected to a gas flow control device in the conduit from the source to the burner. The flow control device acts to throttle the gas flow, to maintain a predetermined variably selective temperature of the probe, from a high pressure, high rate of flow of gas to a low rate of flow of gas to the burner head. A fusion head block has a well in it to receive the temperature sensing probe when the fusion head block is in a predetermined heat-receiving position with respect to the burner head, the well being spaced from the burner head. The burner head is provided with a wire screen to ensure the maintenance of a flame at a reduced flow rate of the gaseous fuel.
REFERENCES:
patent: 1075991 (1913-10-01), Ruud
patent: 1294504 (1919-02-01), Magee
patent: 1734747 (1929-11-01), Seeley
patent: 1855551 (1932-04-01), Jackson
patent: 2085581 (1937-06-01), Greeh
patent: 2106505 (1938-01-01), Morin
patent: 2823740 (1958-02-01), Morck
patent: 3314411 (1967-04-01), Power
Dority Jr. Carroll B.
Emerson Electric Co.
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