Powder spray apparatus and powder spray method

Details Powder spray apparatus and powder spray method Powder spray apparatus and powder spray method

1985-05-09

1986-07-15

Beck, Shrive P.

Coating processes

Solid particles or fibers applied

427421, 118308, 2394273, 239142, 406 46, 406 93, 406194, B05D 112

Patent

active

046006036

ABSTRACT:
A powder spray gun and method of spraying powder wherein an inverted air flow amplifier is located adjacent to the inlet of the gun to enhance blending of powder within the gun and to facilitate sharp cut off and start up of powder flow from the gun. From the inverted air flow amplifier, the blended powder is supplied to a downstream air flow amplifier operable to draw ambient air into the downstream air flow amplifier and to impact the air entrained powder passing through the downstream amplifier with a high velocity stream of compressed air so as to accelerate the velocity of powder emitted from the gun. Powder is supplied to the upstream inverted air flow amplifier through a pair of intersecting inlet ports between which there is a separating baffle.

REFERENCES:
patent: 1964167 (1934-06-01), Needham
patent: 2929436 (1960-03-01), Hampshire
patent: 3239146 (1966-03-01), Freda
patent: 3746254 (1973-07-01), Duncan et al.
patent: 4212266 (1980-07-01), Payne et al.
patent: 4245551 (1981-01-01), Berkmann
patent: 4277260 (1981-07-01), Browning
patent: 4314669 (1982-02-01), Moos
patent: 4411388 (1983-10-01), Muck
Brochure entitled "A Short Course On Transvector Air Flow Amplifiers With Application Notes" by Vortec Corporation.
Brochure entitled "Blow Off" by Vortec Corporation.

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