Valves and valve actuation – With material guide or restrictor
Patent
1991-04-30
1992-05-05
Nilson, Robert G.
Valves and valve actuation
With material guide or restrictor
239461, 251127, 251310, 251352, F16K 504
Patent
active
051100860
ABSTRACT:
An improved irrigation valve has a valve housing with a tubular passage and an inlet opening in one side. The valve housing can be attached to an opening in an irrigation pipe so that water from the pipe can flow into the housing and through the inlet opening. A tubular valve in the tubular passage has a flow opening in its wall and an open outlet end, the valve member being rotatable in the passage to align the flow opening with the inlet opening to different degrees to control the flow of water through the valve from the pipe to the outlet. A baffle extends along an inside wall of the valve member to interfere with circular flow of water within said valve member to thereby reduce a fan effect at the outlet which such circular flow causes, the fan being a cause of erosion of the irrigated soil. Annular and axial ribs between the valve member and tubular passage reduce the ingress of dirt to reduce maintenance of the valve.
REFERENCES:
patent: 865451 (1907-09-01), Swift
patent: 3325143 (1967-06-01), Phillips
patent: 4543990 (1985-05-01), Meuleman
patent: 4589690 (1986-05-01), Meuleman
patent: 4844413 (1989-07-01), Weber
Aqua Control, Inc.
Farley Walter C.
Nilson Robert G.
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