Fluid sprinkling – spraying – and diffusing – Mobile distributor – Irrigation device
Patent
1980-05-15
1983-05-10
Reeves, Robert B.
Fluid sprinkling, spraying, and diffusing
Mobile distributor
Irrigation device
188 67, 188 711, 239587, 285 5, B05B 1508
Patent
active
043825567
ABSTRACT:
A fluid pressure activated mechanism in a rollable side wheel irrigating device allows gravity to maintain the sprinkler head portion of the device perpendicular or level to the ground as the device is rolled in position, and prevents nozzle pressure from moving the sprinkler head once fluid has entered the irrigation device after it has been positioned. The side wheel irrigating device includes an irrigation conduit within a horizontally-disposed axle member attached to two wheels. The conduit extends through the axle at its mid-point and routes irrigating fluid to a gravity-biased sprinkler conduit supporting a sprinkler head. The mechanism is attached between the two conduits, with the mechanism being rigidly attached to the irrigation conduit. The sprinkler conduit is attached to an annular hub and allowed rotative and translative movement in the mechanism housing. Prior to fluid of sufficient pressure entering the mechanism housing, the sprinkler conduit is free to rotate under the force of gravity. As fluid enters the housing, a pressure differential is created across the annular hub as the fluid pressure on the housing inlet side of the hub increases relative to the atmospheric pressure on the housing outlet side of the hub. The pressure differential thereafter causes the axial translation of the hub until a sharp ridge of the hub frictionally engages a rubber washer. The frictional engagement prevents rotation of the sprinkler conduit, and thus of the sprinkler head, as long as the flow of irrigation fluid continues.
REFERENCES:
patent: 3002697 (1961-10-01), Jones
patent: 3045922 (1962-07-01), Jensen
patent: 3143298 (1964-08-01), Jones
patent: 3226137 (1965-12-01), Trnka
patent: 3669362 (1972-06-01), Meyerhofer
patent: 4040651 (1977-08-01), La Branche
Forman Michael J.
Miller James W.
Reeves Robert B.
The Toro Company
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