Powder spray gun

Details Powder spray gun Powder spray gun

1986-04-28

1987-12-29

Reger, Duane A.

Fluid sprinkling, spraying, and diffusing

Processes

239432, 239521, 239697, 239704, B05B 714

Patent

active

047155353

ABSTRACT:
A powder spray gun for applying particulate powder material onto a surface includes a gun body having a venturi transfer pump which receives air-entrained particulate powder material from a supply conduit and distributes the powder for discharge into a discharge conduit connected to the gun body. A spray head formed with a powder discharge slot is mounted to said discharge conduit. The discharge conduit is formed with a bend, preferably of about 90.degree., to concentrate the powder material along an outer wall formed by the bend for delivery in a concentrated stream to the spray head. A deflector is preferably mounted within the discharge conduit to direct the concentrated powder stream into the spray head in a predetermined manner. The powder discharge slot, which has a predetermined width and is formed by angled side walls meeting at an apex, receives the concentrated powder stream from the discharge conduit and sprays the powder in a wide, uniform spray pattern onto a surface.

REFERENCES:
patent: 1835603 (1931-12-01), Kincaid
patent: 3069100 (1962-12-01), Schuler
patent: 3425601 (1969-02-01), Fry
patent: 3425749 (1969-02-01), Smith
patent: 3537755 (1970-11-01), Schmidt
patent: 3746254 (1973-07-01), Duncan et al.
patent: 3795348 (1974-03-01), Vertue
patent: 3870232 (1975-03-01), Lacchia
patent: 3881653 (1975-05-01), Birckhead
patent: 4215648 (1980-08-01), Stamets et al.
patent: 4259923 (1981-04-01), Breen
patent: 4399945 (1983-08-01), Ruud
patent: 4543274 (1985-09-01), Mulder

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