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US 2009/0213684 A1Published application
Apparatus for distribution of a gas into a body of liquid
AssigneeMidan Industries Ltd.
InventorJody Michael Bell
Life of this patent
Estimating the term…
Abstract
A mixing system includes a disc with a plurality of openings combined with a mixer located below the disc with the disc and mixer positioned with respect to one another such that gas exiting openings in the mixer may rise to contact the openings in the disc to sheer the gas into fine bubbles in order to enhance aeration of the liquid.
Claims22
A mixing system for mixing and distributing a gas into a liquid, comprising:
- (a) a drive shaft connectable to a motor for rotating the drive shaft;
- (b) a rotatable mixer connected to the drive shaft for mixing the gas and liquid together, the mixer comprising a plurality of blades having an upper pitched surface to direct liquid upwardly from the blades, each blade having a passageway having an inlet and an outlet through which gas may flow from the inlet to the outlet and radially outwardly into the liquid;
- (c) a conduit associated with the drive shaft connected to the inlet for directing gas through the conduit into the inlet;
- and
- (d) a rotatable disk connected to the drive shaft positioned above the mixer, the disk comprising a plurality of openings positioned with respect to the mixer such that gas exiting the outlet and rising in the liquid may be contacted by and pass through one or more openings to physically sheer the gas into smaller bubbles.
2 more elements
A method of aspirating a body of liquid with a gas, comprising the steps of:
- (a) immersing a rotatable mixer and disk combination into the liquid,
- (i) the mixer comprising at least one blade having an upper pitched surface which, when rotated, drives liquid upwardly from the blade and a passageway having an inlet and an outlet;
- and;
- (ii) the disk positioned above the mixer and comprising a plurality of openings positioned with respect to the mixer such that gas exiting the outlet and rising in the liquid may be contacted by and pass through one or more openings to physically break up the gas into finer bubbles;
- (b) connecting a source of gas to the inlet;
- and
- (c) rotating the mixer and disk such that gas passes from the source of gas into the inlet, through the passageway and out the outlet into the liquid such that the gas is driven radially outwardly from the mixer and rises due to buoyancy forces into the openings.
4 more elements
Dependencies are inferred from the claim text.