Automatic closure valve for water sprinkler

Details Automatic closure valve for water sprinkler Automatic closure valve for water sprinkler

1976-01-06

1977-02-01

Cohan, Alan

Fluid handling

Self-proportioning or correlating systems

Self-controlled branched flow systems

137217, 1375962, 1376121, F16K 4500

Patent

active

040057259

ABSTRACT:
An automatic closure valve for water sprinkler which enables water from a water tap to be used without even necessity for stopping the tap and removing the sprinkler and water hose and enables water remaining in the hose and the closure valve to be automatically drained off after the water sprinkling, the closure valve being constructed with a valve casing, in which there are provided two valve chambers defined in mutual contiguity and communicated each other by means of a passage; a closure valve mechanism for closing the passage in response to increased pressure of water in the valve chambers; an opening which communicates the valve chambers and the external atmosphere; and a valve means which usually closes the opening by the water pressure, and opens the same when the pressure in the valve chambers becomes negative.

REFERENCES:
patent: 2159056 (1939-05-01), Sloan
patent: 2503424 (1950-04-01), Snyder
patent: 2929394 (1960-03-01), Wenner
patent: 3204657 (1965-09-01), Boyd

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