Shutoff valve for high-pressure spray guns

Details Shutoff valve for high-pressure spray guns Shutoff valve for high-pressure spray guns

1975-05-19

1977-03-01

Rosenthal, Arnold

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

251251, F16K 31383

Patent

active

040098605

ABSTRACT:
A shutoff-valve, for high and highest pressures (i.e. pressure in the range of hundreds to thousands of kp/cm.sup.2) especially for a high-pressure spray gun, has a common pressure chamber for a differential piston driven by the pressure medium (e.g. liquid or gas) and a control piston of either ball-, cone-. cylinder-, plate-, or similar shape. The control piston cooperates with a control pin displaced by an operating lever. The shutoff-valve, working on a largely hydraulic basis by creating underpressure, is brought into closing position by means of a bypass channel for controlled flow of the medium and is opened by displacement of the operating lever.

REFERENCES:
patent: 685930 (1901-11-01), Netherly
patent: 796005 (1905-08-01), O'Brien
patent: 1250388 (1917-12-01), Titus
patent: 1711660 (1929-05-01), Stephenson
patent: 2758811 (1956-08-01), Peterson

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