Microbubble generator
Patent 5314644 Issued on May 24, 1994. Estimated Expiration Date: 
October 19, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 19, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 25453 1427271 2706108 3012977 3313093 3427003 3471131 3900420 Prevention of flow reversal in vertical waste treatment apparatus Mixing apparatus for mixing a fluid fiber suspension with a treatment fluid suspension InventorsAssigneeApplicationNo. 962903 filed on 10/19/1992US Classes:261/84, Impeller209/170, Pneumatic210/221.2, And gas injecting means other than by mechanical agitation366/307, Element mounted on cylindrical mixing chamber wall366/321Opposite pitchExaminersPrimary: Miles, Tim R.Attorney, Agent or FirmForeign Patent References
International ClassB01F 003/04AbstractMeans are provided for supplying a liquid surfactant solution, for supplying a gas under pressure, for mixing the liquid surfactant solution and the pressurized gas to form a liquid coarse dispersion of relatively large gas bubbles, and for receiving the liquid coarse dispersion to generate a liquid fine dispersion of relatively small micron-size gas bubbles. The fine dispersion generator mean generally comprises a cylindrical chamber having an inlet for admitting the liquid coarse dispersion into the chamber, and an outlet for discharging a liquid fine dispersion of relatively small micron-size gas bubbles from the chamber; a cylindrical rotor which is mounted within the chamber and has an outer side surface which is provided with means for imparting axial motion components in opposite directions to various portions of the liquid dispersion adjacent to rotor; and a plurality of baffles located between the rotor outer side surface and the chamber inner side wall surface which are spaced apart around the rotor and where each baffle has an inner longitudinal edge which faces the rotor outer side surface and is separated therefrom by a first gap within which the large gas bubbles are sheared into small micron-size gas bubbles.Other References
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