"Twist-lock" gas nozzle for a heat treating furnace

Details "Twist-lock" gas nozzle for a heat treating furnace "Twist-lock" gas nozzle for a heat treating furnace

1987-08-05

1989-01-24

Favors, Edward G.

Heating

With work cooling structure

239600, F27D 1502

Patent

active

047998814

ABSTRACT:
A re-usable and interchangeable nozzle for delivering cooling gas into the work chamber of a heat treating furnace, provided in the form of any of various keyed tube and mounting base combinations which allows assembly from within the furnace by an axial movement followed by a rotary motion. The preferred embodiment consists of a cylindrical tube made of any suitable material (including but not limited to molybdenum, graphite, or ceramic) having a keyed slot in its lower end and a matching base made of any suitable material which has a mating pin in it. The base is firmly fixed in place by welding or any suitable means and the tube can be removed from the base without damage by first rotating it then pulling it along its axis.

REFERENCES:
patent: 3799453 (1974-03-01), Hart
patent: 4395832 (1983-08-01), Jones et al.
patent: 4560348 (1985-12-01), Moller et al.

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