Liquid purification or separation – With means to add treating material – Directly applied to separator
Patent
1980-06-09
1981-12-29
Spitzer, Robert H.
Liquid purification or separation
With means to add treating material
Directly applied to separator
210758, 261 77, 261DIG75, C02B 308, B01F 304
Patent
active
043081380
ABSTRACT:
A device for aerating lakes, the main part of which is an elongate casing having a longitudinal water passage through it. Between the inlet and outlet of this passage there is a frusto-conical segment converging to a restricted outlet opening and a cylindrical barrel segment spaced downstream of, and in axial alignment with, the frusto-conical segment. Surrounding and including the axial space between the frusto-conical and cylindrical segments is a mixing chamber having a pair of air intake openings to which air hoses are attached. A straight tubular nozzle is attached to the casing at its outlet end, which nozzle has a unique beveled configuration at its discharge end and a pair of apertures through its wall. The device is positioned underwater for use with the air hoses from the mixing chamber in communication with the atmosphere. A submersible pump forces water into the casing which emerges as a jet stream from the restricted opening in its frusto-conical segment. The stream passes through the cylindrical barrel segment without contacting the walls of that segment, and on into the nozzle. Air is drawn in through the intake openings of the mixing chamber and this air mixes with surface water in the jet stream. The stream encounters back water partway through the tubular nozzle, downstream of which complete mixing of the water and air occurs. The stream with the entrained air then surges outwardly through the nozzle and into the surrounding body of water in a fanning action.
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patent: 2328414 (1943-08-01), Beyer
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patent: 3671022 (1972-06-01), Laird et al.
patent: 4049552 (1977-09-01), Arff
patent: 4098851 (1978-07-01), Schulte et al.
patent: 4162970 (1979-07-01), Zlokarnik
Crowe John H.
Spitzer Robert H.
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