Fluid sprinkling – spraying – and diffusing – Combining of separately supplied fluids – And valving means controlling flow for combining
Patent
1995-01-20
1997-09-30
Morris, Lesley D.
Fluid sprinkling, spraying, and diffusing
Combining of separately supplied fluids
And valving means controlling flow for combining
2394195, B05B 724
Patent
active
056718888
ABSTRACT:
A high-volume, low-pressure spray gun operates from a conventional high pressure compressor. The gun has a barrel that supports a spray head, a handle that extends downwardly from the barrel, an inlet port at the bottom of the handle for receiving compressed air, and a passage in the handle directing compressed air toward the barrel. A venturi is mounted within the barrel and discharges a stream of compressed air downstream toward the spray head. The venturi entrains ambient air through orifices in the barrel. A valve mounted within the handle and operated with a trigger controls the flow of compressed air through the gun. The venturi is entirely separate from the trigger and the valve, and no complex linkage couples the trigger and valve, greatly simplifying construction. The venturi may be sealed to the passage in the handle to receive compressed air, and may be spaced from the barrel to allow entrainment of ambient air from the rear of the barrel.
REFERENCES:
patent: 3796376 (1974-03-01), Farnsteiner
patent: 3930615 (1976-01-01), Farnsteiner
patent: 5044557 (1991-09-01), Smith
patent: 5064119 (1991-11-01), Mellette
patent: 5067656 (1991-11-01), Copp, Jr.
patent: 5135172 (1992-08-01), Toth
patent: 5165604 (1992-11-01), Copp, Jr.
Morris Lesley D.
Schumacher Lynn
LandOfFree
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