Fluid handling – Flow affected by fluid contact – energy field or coanda effect – Means to regulate or vary operation of device
Patent
1976-09-09
1978-08-01
Shapiro, Jacob
Fluid handling
Flow affected by fluid contact, energy field or coanda effect
Means to regulate or vary operation of device
61 22, 137147, 251147, 251299, E02B 740, F16K 5100
Patent
active
041034953
ABSTRACT:
A device for controlling the flow of water between an irrigation ditch and an adjacent field. A conduit having a first end opening into the irrigation ditch and a second end opening into the field to be irrigated. The cover is pivotally attached to the first end of the conduit by means of a "J"-shaped hinge. A handle is provided on the exterior of the cover and can be engaged by a manually-held instrument to pivot the cover to a position above the conduit where it will rest due to the configuration of the hinge part. The conduit is positioned relative to the irrigation ditch such that the first end is recessed inwardly of one side wall of the ditch and extends below the bottom wall of the ditch.
REFERENCES:
patent: 961292 (1910-06-01), Fowler
patent: 2771042 (1956-11-01), Deaton
patent: 2942839 (1960-06-01), Smith
Rhode Richard
Shapiro Jacob
Veeder David A.
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