Fluid sprinkling – spraying – and diffusing – With mobile tank-type supply means – Spray boom or bar type distributor
Patent
1978-10-26
1980-02-05
Saifer, Robert W.
Fluid sprinkling, spraying, and diffusing
With mobile tank-type supply means
Spray boom or bar type distributor
239176, B05B 1508
Patent
active
041868781
ABSTRACT:
In a sprayer, particularly an agricultural sprayer, having a boom equipped with conical jet spraying nozzles, the height of the boom above the plane of the surface to be treated is controlled in accordance with the pressure of the spray liquid in the boom by a system for the displacement of the boom perpendicularly to the plane of the surface to be treated, which system is mounted on the chassis of the sprayer, and provided with detectors for detecting the position of the boom with respect to the chassis, a comparator for comparing signals coming from the detectors with a value representing the pressure of the fluid in the boom, and a hydraulic jack connected to the comparator for operating the said displacement system in one direction or the other according to the differences detected, for the purpose of maintaining a tangent relationship between the circles or ellipses of the intersection of the conical spray jets with the plane of the said surface to be treated.
REFERENCES:
patent: 2699967 (1955-01-01), Edinborough et al.
patent: 3034727 (1962-05-01), Paulson
patent: 3362643 (1968-01-01), Larson et al.
patent: 3874593 (1975-04-01), Wilt
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