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| Number | Title | Issue Date |
| 7481573 | Mixing impeller with pre-shaped tip elements A blade is disclosed for use in a mixing impeller assembly. The blade includes a top skin element and a bottom skin element without an internal framework in between the elements. A unitary pre-shaped tip element is attached at an end of the blade to the top and bott... | 01/27/2009 |
| 7172337 | Low shear impeller One or more mixing impellers is carried on a driving shaft received in a mixing vessel. Impeller blades are angularly and/or axially distributed on the shaft and can be single staggered axially-spaced blades or groups of two or more placed angularly around the shaft... | 02/06/2007 |
| 6986507 | Mass transfer method A more efficient process and method for dispersing gas or other fluids into a liquid which may have solid suspension. More particularly, the process includes maximizing the transfer of oxygen by an impeller by selecting a Froude Number value and/or Surface Power Den... | 01/17/2006 |
| 6796707 | Dual direction mixing impeller and method A two bladed dual direction impeller includes blades that each have an inner blade portion that forces material in a first direction and a second blade portion that forces material in a second direction opposite to the first direction. The first and second blade por... | 09/28/2004 |
| 6334705 | Fluid mixing impellers with shear generating venturi An axial flow mixer impeller which is high in efficiency in terms of flow is made more effective, when used in a sparging system for dispersion and for mass transfer of a liquid phase or a gaseous phase into a liquid which is being mixed or agitated, by f... | 01/01/2002 |
| 6231268 | Apparatus and method for treatment of large water bodies by directed circulation Apparatus and method for inducing directed water movements for treatment of large water bodies subject to surface freezing, stagnation, bottom oxygen deficiency, or other non-uniform conditions. The apparatus consists of an open axial-flow impeller, drive... | 05/15/2001 |
| 5984520 | Blade for a mixing device A blade for a mixing device, especially for the mixing of different particles or different liquids, where the blade is mounted on a substantially horizontal rotor and extends in a straight line perpendicular to the rotor axis. The blade has a curved cross... | 11/16/1999 |
| 5938332 | Mixing device The invention provides a mixing impeller for full immersion in a liquid to mix the liquid. The impeller has a central, longitudinally-extending axis of rotation, and includes a unitary body having a circular area disposed radially about the axis of rotati... | 08/17/1999 |
| 5894030 | Device and method for manufacturing frozen aerated products A device for the manufacture of a frozen aerated product which includes a freezer, a pump for introducing a frozen aerated product mix and air into the freezer, a tubular crystallizer system having upstream and downstream ends and having a longitudinal sh... | 04/13/1999 |
| 5791779 | Mixing assembly for continuous mixer A continuous mixer has an elongated trough with two mixer assemblies mounted therein in a mutually parallel, laterally spaced apart relationship for axial rotation in opposite directions. Each mixer assembly has a rigid shaft with a plurality of blades mo... | 08/11/1998 |
| 5762417 | High solidity counterflow impeller system A mixing apparatus has a tank for holding a material to be mixed, a drive shaft rotatable in the tank, a radially inner impeller on the drive shaft with blades pitched to produce axial flow of the material in a first direction, and a radially outer impell... | 06/09/1998 |
| 5525269 | Impeller tiplets for improving gas to liquid mass transfer efficiency in a draft tube submerged turbine mixer/aerator A vertical draft tube submerged turbine mixer/aerator includes an impeller rotatedly disposed within the draft tube above an aerator. A single tiplet extends downwardly from the lower surface of each impeller blade in proximity to the blade tip for improv... | 06/11/1996 |
| 5415474 | Bone cement mixing and loading apparatus An apparatus for mixing bone cement and containing the mixed bone cement preparatory to dispensing. The mixing chamber has an outlet for the mixed cement. A cartridge has an inlet releasably coupled to the outlet of the mixing chamber for receiving mixed ... | 05/16/1995 |
| 5407273 | Double bladed mixing instrument with axially displaced blades A mixing instrument for the treatment of solids or individual solid components is attached to a shaft concentrically arranged in a horizontally positioned container. The shaft is mounted in the container in a rotatable fashion. A plurality of mixing instr... | 04/18/1995 |
| 5393138 | Apparatus for mixing foundry mould substances In an apparatus for mixing foundry mould substances, in particular sand and binding agent, comprising a mixing tool which projects from a drive shaft and which is rotatable therewith in a container, fitment bodies (30) of small lateral extent (a, d) proje... | 02/28/1995 |
| 5372617 | Hydrogen generation by hydrolysis of hydrides for undersea vehicle fuel cell energy systems A hydrogen generator for hydrolyzing hydrides substantially at stoichiometry to provide hydrogen on demand to a fuel cell is disclosed. The generator comprises a sealable, pressurizable, thermally insulated vessel into which a hydride in granular form is ... | 12/13/1994 |
| 5316443 | Reversible mixing impeller Liquid mixing impellers particularly designed for the chemical processing industry provide a generally axial flow when rotated in a first direction of rotation and provide a generally radial flow when rotated in the opposite direction of rotation. The bla... | 05/31/1994 |
| 5308045 | Scrap melter impeller A scrap melter apparatus which includes a drive motor disposed above a molten metal bath, and a shaft attached to a bottom of the drive motor, and protrudes partway into the molten metal bath. A scrap melter impeller is attached to the bottom of the shaft... | 05/03/1994 |
| 5286457 | Reactor with surface agitator for solution polymerization process A reactor for the solution polymerization of volatile monomers equipped with an agitator to cause splashing and droplet formation to reduce volatile monomer accumulation in the vapor space.... | 02/15/1994 |
| 5246289 | Agitator having streamlined blades for reduced cavitation An agitator assembly for use in effecting dispersion of a fluid such as a gas in a liquid comprises a rotor having a rotatably driven shaft 18 mounting a series of scoop-shaped blades 20 which are oriented with the mouths 21 of the scoops presented in the... | 09/21/1993 |
| 5211924 | Method and apparatus for increasing conversion efficiency and reducing power costs for oxidation of an aromatic alkyl to an aromatic carboxylic acid Improved mixing performance with reduced power input is obtained in an agitated oxidation reactor for converting an aromatic alkyl to the corresponding aromatic carboxylic acid by decreasing the clearance between the lowermost impeller element and the rea... | 05/18/1993 |
| 5161888 | Dual shaft preconditioning device having differentiated conditioning zones for farinaceous materials A preferred preconditioning device for use with an extruder includes two juxtaposed, frustocylindrical, intercommunicated chambers one of which presents a greater cross-sectional area than the other. A respective pair of rotatably driven mixing shafts ext... | 11/10/1992 |
| 5151288 | Food processing apparatus and method An apparatus for making a frozen confection product from a liquid food substance comprises a gas port for selectively injecting gas from a pressurized source into the liquid food substance at an injection point to form a mixture, a freeze tube having an i... | 09/29/1992 |
| 5145255 | Stirring apparatus and stirring tower type apparatus for polmerization reactions In order to improve mixing efficiency of highly viscous fluid, while structural simplicity being maintained, two types of stirring impellers are employed in a single stirring apparatus. One of such stirring impellers is a large flat impeller and the other... | 09/08/1992 |
| 5135310 | Mixing equipment especially for manufacturing starch adhesive A starch based adhesive is made in an agitator tank which has a first rotatable propeller shaft with a plurality of propellers distributed along the length thereof. Each of at least some of the propellers is surrounded by an apertured shroud, which could ... | 08/04/1992 |
| 4966690 | Chlorine induction apparatus for treatment of wastewater In accordance with illustrative embodiments of the present invention, a chlorine gas inductor unit for use in wastewater treatment includes an elongated bearing frame having upper and lower bearing housings secured to the opposite ends of a tubular member... | 10/30/1990 |
| 4954303 | Apparatus and process for devolatilization of high viscosity polymers A devolatilizer, especially suitable for high viscosity polymers, comprising a vacuum chamber into the top of which the polymer is introduced after having passed through a tubular or equivalent heat exchanger, with a low shear mixer located in the vacuum ... | 09/04/1990 |
| 4941752 | Mixing equipment and methods Improved mixing equipment of the wall-baffled, cylindrical, mixing-vessel type is provided. The novel baffles employed have a uniform cross-sectional form corresponding generally to a small geometric segment of a circle, the radius of which circle is subs... | 07/17/1990 |
| 4917501 | Internal mixer with improved rotors A rotor for an internal mixer includes blades whose profile assures a suile stress of the rubber between the blade and the inside wall of a chamber. This profile includes a gradual convergent surface, a fine passage surface, a gradual divergent surface a... | 04/17/1990 |
| 4909634 | Stirring device A stirring device having a casing for forming a stirring chamber, a driving rotary shaft disposed in the casing, a plurality of stirring paddles fitted on the rotary shaft as being dispersed axially of the shaft and a plurality of projections attached to ... | 03/20/1990 |
| 4889433 | Programmable apparatus and method for delivering microingredient feed additives to animals by weight A method and apparatus whereby livestock and poultry are administered feed additives in their feed ration. The apparatus stores additive concentrates separately until just prior to use, then on demand dispenses the additive concentrates into one or more w... | 12/26/1989 |
| 4838703 | Injection impeller for agricultural chemicals An apparatus for the injection of liquid additives, such as fertilizers and insecticides, into irrigation sprinkler systems for even dispersal within the least distance of conduit pipe from the point of injection is presented. Said injection is accomplish... | 06/13/1989 |
| 4820053 | Gypsum dissolution system A continuous process and apparatus for preparing a gypsum slurry of water and finely divided high purity gypsum for use in an irrigation system wherein the gypsum and water are mixed by vigorous agitation in a tank or the like. Means are provided to creat... | 04/11/1989 |
| 4815042 | Programmable apparatus and method for delivering microingredient feed additives to animals by weight A method and apparatus whereby livestock and poultry are administered feed additives in their feed ration. The apparatus stores additive concentrates separately until just prior to use, then on demand dispenses the additive concentrates into one or more w... | 03/21/1989 |
| 4799862 | Impellers A rotating impeller for stirring liquids contained in tanks. Strip-like blades of simple form radiate from a central hub, in swept-back configuration relative to the direction of rotation. The blades are angled relative to the hub so as to exert a forward... | 01/24/1989 |
| 4759633 | Apparatus and process for metering and mixing two different materials that are pasty or of low to high viscosity An apparatus for metering and mixing two different materials that are pasty or of low to high viscosity, includes a device for simultaneously delivering the materials from storage vessels to a mixing chamber, and a member for mixing the two materials in t... | 07/26/1988 |
| 4733971 | Programmable weight sensitive microingredient feed additive delivery system and method A method and apparatus whereby livestock and poultry are administered feed additives in their feed ration. In one disclosed form, the apparatus stores additive concentrates separately until just prior to use, then on demand dispenses the additive concentr... | 03/29/1988 |
| 4723719 | Invertible/reversible tool for use in a rotary food processing appliance An invertible/reversible tool for use in a rotary food processing appliance is provided for performing predetermined processing operations in a first position and other predetermined operations in a second upside down position in a working bowl, which bow... | 02/09/1988 |
| 4721392 | Method and a device for installation of a mixer A method and a device for installation of a mixer in a liquid tank is provided wherein the mixer is brought downwards into the tank along a guide which is pivotally attached in the upper part of the tank. During operation the reaction force from the impel... | 01/26/1988 |
| 4715724 | Head attachment for a hydraulic synthetic-resin working machine for colored synthetic resin The invention relates to a head attachment for a hydraulic synthetic-resin processing machine for colored synthetic resin, the attachment comprising a mixer, a synthetic resin supply vessel directly connected with the former and a coloring mass supply ves... | 12/29/1987 |
