Automatic proportioner for low-pressure watering troughs

Details Automatic proportioner for low-pressure watering troughs Automatic proportioner for low-pressure watering troughs

1974-12-13

1976-07-27

Nilson, Robert G.

Animal husbandry

Watering or liquid feed device

137 99, 417377, G05D 1103, A01K 702

Patent

active

039713415

ABSTRACT:
An automatic proportioner for supplying medication to automatic watering troughs in poultry yards, comprises a differential piston unit movable in a stepped casing with the small piston acting as pump and the larger piston as actuator. A tubular valve movable coaxially with the piston unit serves to admit line water under pressure into the intermediate cylinder space for the upward stroke, whereby a concentrated medicated solution is sucked from a vessel into the suction side of the pump. During the downward stroke the valve interrupts the water supply from the line and the large piston is driven in downward direction by water from a raised storage tank, whereby the solution is driven into the intermediate space, mixed with the line water remaining therein in the proportion of the respective cylinder volumes and expelled to the troughs, at a pressure defined by the water level in the raised storage tank. A pressure-operated valve closes the line water supply as soon as the medication vessel is empty and stops the proportioner. A second pressure-operated valve opens a direct connection between the storage vessel and the watering troughs should the line water supply fail.

REFERENCES:
patent: 3150639 (1964-09-01), Sereda
patent: 3228560 (1966-01-01), Tacchi
patent: 3818924 (1974-06-01), Carlyle

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