Fluid handling – With casing – support – protector or static constructional... – Static constructional installations
Patent
1995-07-31
1997-04-08
Chambers, A. Michael
Fluid handling
With casing, support, protector or static constructional...
Static constructional installations
137302, F16K 1700
Patent
active
056178921
ABSTRACT:
An irrigation system shut-off valve includes first and second hollow housing sections with are threadedly connected by an elongated pipe so that all of the sections lie on a common axis. A valve seat and a valve member concentric to said axis are present in the second housing section, the valve member being movable between a closed position wherein the valve member seals against the valve seat and an open position wherein the valve member is spaced from the valve seat. The valve member is moved between its two positions by a shaft which extends from the valve member along the axis through the first housing section where it is threaded into an end wall of that housing section so that when the shaft is rotated in one direction, the valve member moves to its closed position and when the shaft is rotated in the opposite direction, the valve member moves to its open position so that water can flow from an inlet in the second housing section through the bridging section to an outlet in the first housing section without any appreciable pressure drop.
REFERENCES:
patent: 536801 (1895-04-01), Gaghan
patent: 2808069 (1957-10-01), McCurdy
patent: 2952270 (1960-09-01), Fulton et al.
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