Back-fire preventive unit in a gas cutting torch

Details Back-fire preventive unit in a gas cutting torch Back-fire preventive unit in a gas cutting torch

1987-06-03

1989-02-21

Dority, Jr., Carroll B.

Combustion

Flash-back controlling or preventing structure

48192, 266 48, F23D 1482

Patent

active

048060968

ABSTRACT:
A manual gas cutting torch to be used for fusion-cutting iron materials such as steel frames or iron plates includes a flame port at its cutting tip, a plurality of ports connected with gas and oxygen cylinders at its rear edge, and a handle section for holding the torch with one hand at its middle. A freely detachable back-fire preventive device is incorporated into a gas channel or oxygen channel or to both channels which shift(s) to the cutting tip side from this handle section. The back-fire preventive device serves to stop any flash-back from the cutting tip just before the handle section for preventing the flame from passing through the handle section and escaping back to the cylinder.

REFERENCES:
patent: 1176017 (1916-03-01), Armstrong
patent: 1290422 (1919-01-01), Vale et al.
patent: 2095747 (1937-10-01), Jacobsson
patent: 3031285 (1962-04-01), Hedberg
patent: 3035632 (1962-05-01), Ericsson
patent: 3243272 (1966-03-01), Schmitz

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