Dual gas supply blow torch

Details Dual gas supply blow torch Dual gas supply blow torch

1979-09-27

1981-07-07

Saifer, Robert W.

Fluid sprinkling, spraying, and diffusing

Combining of separately supplied fluids

And valving means controlling flow for combining

239582, 137607, 251DIG1, F16K 1118, F16K 720

Patent

active

042770319

ABSTRACT:
A dual gas supply blow torch has two gas inlets and a gas outlet for connection to a nozzle; a mixing and control valve operated by a single control device is interposed between the inlets and the outlet and this comprises a core axially displaceable in a bore provided with valve seatings. For each gas inlet the core has a valve formed by an annular elastic sealing joint engageable with a corresponding seating, and an escape passage is provided having a cross-section which can be varied by elastic deformation of the sealing joint in order to control the gas flow. At least one of the two valves has means for proportioning the gas flow rates.

REFERENCES:
patent: 709830 (1902-09-01), Snow
patent: 1222319 (1917-04-01), Mueller
patent: 2507102 (1950-05-01), Hammon

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