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| Number | Title | Issue Date |
| 7530731 | Vertical-axis mixing machine for processing mixes Mixing machine of the type comprising a container (10), inside which aggregates and binding fluids are introduced in order to form stone mixes, and at least one motor-driven mixing unit (30; 130A, 130B), the axis (Y; Y1, Y2) of whi... | 05/12/2009 |
| 7334937 | Impeller vane assembly for liquid/solid blenders An impeller vane assembly for blending liquids with solid particulate matter in which a center drive shaft extends through a housing having a solid particle inlet and a liquid inlet together with an outlet, and upper and lower impeller vanes are aligned respectively... | 02/26/2008 |
| 7281839 | Turbine cement/water mixer for concrete production A high-speed turbine mixer combines water and cement into a pre-mixed cement paste that is added to aggregates to create a concrete mix. The turbine mixer includes a housing that cooperates with an auger to move dry cement into a mixing chamber where water is added.... | 10/16/2007 |
| 7090017 | Low cost method and apparatus for fracturing a subterranean formation with a sand suspension The present invention is directed to a low cost method and apparatus for fracturing a subterranean formation. The invention involves using a centrifugal pump to combine a fracture fluid, a sand suspension and liquid additive and discharge a mixture of these componen... | 08/15/2006 |
| 6974246 | Apparatus for blending liquids and solids including improved impeller assembly A method and apparatus for blending liquids with solid particulate matter in which a center drive shaft extends through a housing having a solid particle inlet and a liquid inlet together with an outlet, and upper and lower impeller vanes are aligned respectively wi... | 12/13/2005 |
| 6616322 | Mixing apparatus Apparatus for mixing liquid in a container, comprises a hollow sleeve member for location in the lower regions of the container, a plurality of circumferentially spaced outlets being provided in the upper regions of the sleeve member, pump means for creat... | 09/09/2003 |
| 6481885 | Hydrodynamic stirring device and lance A hydrodynamic stirring device which dissolves, mixes or puts back into suspension or into a "sol" in a primary liquid phase, a deposited sediment which is contained in a tank and covered by the primary liquid phase. The stirring device includes a suction... | 11/19/2002 |
| 5904419 | Blender method and apparatus A blender apparatus specifically adaptable for intermixing solid and liquid materials is made up of a housing for an impeller assembly having upper and lower impeller portions and wherein liquid directed into the lower impeller portion is redirected axial... | 05/18/1999 |
| 5899560 | Liquid slurry agitation apparatus A slurry agitation apparatus for selectively agitating slurry temporarily stored in the interior of a storage tank, which slurry contains heavier-than-liquid solids and is at least somewhat pumpable, comprises a slurry circuit having connected together in... | 05/04/1999 |
| 5542984 | Method for dispersion of sludge and for preparing a circulator for dispersing sludge A method for cleaning the interior of storage tanks of the type used for storing large volumes of crude oil wherein hydrocarbon sludge accumulates with the passage of time. The method includes circulating the crude oil from the tank to a pump and then thr... | 08/06/1996 |
| 5135968 | Methods and apparatus for treating wastewater Apparatus for diluting and activating polymer molecules includes primary polymer dilution and activation apparatus, secondary dilution apparatus, and apparatus for diverting a desired amount of dilution water around the primary dilution and activation app... | 08/04/1992 |
| 5078799 | Process for recovering crude oil or refinery products from sludgy, thickened or sedimented products To render residues such as thickened sludge and sedimented crude oil or refinery products which collect at the bottom of a tank into pumpable flowable condition, crude oil is taken from an upward region of the tank, pumped upwardly to a suction pump (609)... | 01/07/1992 |
| 4987850 | Apparatus for the wetting of seeds Apparatus whereby seeds, in particular unginned cottonseeds having lint, may be wetted with liquid active ingredients. To achieve this, the cottonseeds are separated in a feeder and metering device having conveyor screws and a baffle, and fitted uniformly... | 01/29/1991 |
| 4495086 | Method and apparatus for preparing emulsions Method and apparatus for continuously producing emulsions with particles of a disperse phase liquid in a continuous phase liquid, employing an emulsifying vessel which is interiorly provided with a gravitative flow surface and a feeder for supplying the c... | 01/22/1985 |
| 4103351 | Apparatus for controlling the density of a plugging fluid An apparatus for controlling the density of a plugging fluid including means for shaping the jet of the carrier liquid into a flat jet and rotating the jet about its longitudinal axis thereof in the area of mixing a dry cementation material.... | 07/25/1978 |
