Treating means for bodies of water

Treating means particularly adapted for dispersing a treating agent in a body of water comprising:

• casing means for immersion in said body,
• said casing means having a passage therethrough including, an inlet for connection to a source of pressurized water,
• an outlet of lesser cross-sectional area than said inlet,
• a frusto-conical segment converging in the downstream direction to a restricted outlet opening disposed intermediate the inlet and outlet, and
• a barrel segment defining an elongate passageway of round cross-section, which barrel segment is in axially spaced relationship with, and downstream of, said restricted outlet opening,
• said barrel segment being in axial alignment with said frusto-conical segment and having a round inlet opening into said elongate passageway concentrically disposed with respect to said restricted outlet opening and of larger cross-section than the latter;
• said casing means having structural means forming an enclosed mixing chamber of round cross-section including and surrounding the axial space between the restricted outlet opening of said frusto-conical segment and the inlet opening of said barrel segment, which mixing chamber has intake opening means adapted for communication with the atmosphere above said body of water, said intake opening means defining at least one passage extending radially into said mixing chamber and the restricted outlet opening of said frusto-conical segment being positioned at a plane perpendicular with the axis of said casing means and substantially coincident with the extended axis of the at least one intake opening means passage;
• whereby the forcing of pressurized water into the inlet of said casing means when the latter is immersed in said body of water for use forces a jet stream of the water through the restricted outlet opening of said frusto-conical segment and into the inlet opening of the barrel segment substantially out of contact with any part of said barrel segment;
• and
• whereby when said water under pressure is being forced through said casing means, air from the atmosphere is sucked into said mixing chamber through said intake opening means, when the latter is in communication with said atmosphere, which air is forced into the surface of the jet stream, by the pressure of said atmosphere, to increase the velocity of said jet stream;
• and
• whereby the jet stream continues on to eventually encounter water from said body of water, after which substantially complete mixing of the air and water in said jet stream occurs and the stream with the entrained air travels into said body of water to achieve widespread aeration thereof,
• said treating means including straight tubular nozzle means connectible to the outlet end of said casing means, said nozzle means having an inside diameter substantially equal to the diameter of the outlet of the casing means passage and being so characterized that the jet stream with entrained air passing through said barrel segment when said treating means is in operation encounters back water from said body of water therein and undergoes a change in energy state to bring about more complete mixing of the air and water, said nozzle means having opening means through its wall upstream of where the jet stream encounters said back water so that additional water from said body of water is drawn into the system to produce an increase in mixing efficiency.