HVLP spray gun

Details HVLP spray gun HVLP spray gun

1991-04-10

1992-08-25

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Including supplemental gas shaping or shielding jet

Adjustable gas flow directing or controlling means

239290, 239353, 239390, 239414, B05B 704

Patent

active

051411610

ABSTRACT:
A spray gun designed for high volume low pressure (HVLP) use is provided with a simple yet effective mechanism for providing feathering as well as allowing for extended needle and nozzle life. A poppet member is spring biased and moves some distance to first initiate air flow prior to initiation of fluid flow. The needle nozzle combination is provided with geometry such that the location of highest velocity is separate from the seating area so as to minimize wear of the seating areas and thus extend life. A two stage pressure drop is utilized for use with plant air. The two stage drop provides more consistent results.

REFERENCES:
patent: 734473 (1903-07-01), Shepler
patent: 1232618 (1917-07-01), Smart
patent: 1436145 (1922-11-01), Birkenmeier
patent: 1650686 (1927-11-01), Binks
patent: 1651466 (1927-12-01), Norris
patent: 1706006 (1929-03-01), Thompson
patent: 1751608 (1930-03-01), Tittlemore
patent: 1940268 (1933-12-01), Peterson
patent: 2759772 (1956-08-01), Hopkins
patent: 2804343 (1957-08-01), Friedell
patent: 2888207 (1959-05-01), Sykes
patent: 4426039 (1984-01-01), Kwok
patent: 4708292 (1987-11-01), Gammons

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