Fluid sprinkling – spraying – and diffusing – With heating or cooling means for the system or system fluid – Heating means
Patent
1984-08-03
1986-02-11
Nase, Jeffrey V.
Fluid sprinkling, spraying, and diffusing
With heating or cooling means for the system or system fluid
Heating means
137334, 239127, 239129, 417390, B05B 124
Patent
active
045694800
ABSTRACT:
A spray gun includes a material inlet and an air inlet. A reciprocating hydraulic motor is connected to and drives a reciprocating hydraulic pump which pumps material from a material reservoir to the pump outlet. A first air piloted hydraulic valve is connected to the pump outlet and the first valve is connected to and is operable to transmit pumped material to either the material inlet of the gun or to the material reservoir. A second motor is connected to and drives a second hydraulic pump which is connected to and supplies hydraulic fluid from a hydraulic reservoir to the reciprocating hydraulic motor. A second air-piloted hydraulic valve is connected between the second hydraulic pump and reciprocating hydraulic motor and is operable to transmit pumped hydraulic fluid to either the reciprocating hydraulic motor or to the hydraulic fluid reservoir. An air control valve is connected to an air supply and is connected to the first and second valves. The control valve is connected to the air inlet of the sprayer and is adapted to actuate the first and second valves to the open position when the spray gun is actuated and is adapted to move the first and second valves to the vent position when the spray gun is deactuated thereby preventing a pressure surge buildup at the material inlet of the spray gun.
REFERENCES:
patent: 2687739 (1954-08-01), Shelburne et al.
patent: 2779291 (1957-01-01), Albright
patent: 2779627 (1957-01-01), Gray
patent: 2870717 (1959-01-01), Dube et al.
patent: 3018968 (1962-01-01), Levey
patent: 3403695 (1968-10-01), Hopkins
Edelbrock Daniel R.
Nase Jeffrey V.
Speeflo Manufacturing Corporation
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