Hot air heat gun

Details Hot air heat gun Hot air heat gun

1990-08-22

1991-03-05

Dority, Carroll B.

Stoves and furnaces

Heaters

Chemical

F24J 100

Patent

active

049969722

ABSTRACT:
The invention, in the preferred embodiment, comprises a heat-shrink gun for eat-shrink applications in potentially explosive or flammable conditions, by using a non-electic non-flame producing, and non-sparking heat source. A hand-held housing has a nozzle attached thereto. A heat transfer element is attached within the housing and extends into the nozzle. The space within the nozzle formed between the heat transfer element and the nozzle defines an air heating chamber. A chemically reactive heat cartridge, contained within the heat transfer element, is activated via a striking force. The heat cartridge radiates heat along the heat transfer element into the air heating chamber. Air under pressure is supplied to the air heating chamber and exits the nozzle as hot air under pressure.

REFERENCES:
patent: 3766079 (1973-10-01), Jackman et al.
patent: 3804077 (1974-04-01), Williams
patent: 3811422 (1974-05-01), Olson
patent: 3924603 (1975-12-01), Chapin
patent: 4033323 (1977-07-01), Trumble
patent: 4254324 (1981-03-01), Vrtaric
patent: 4260875 (1981-04-01), Walter et al.
patent: 4629864 (1986-12-01), Wilson

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