Class 416/231A - Mixers or agitators

Subclass of Class 416 - Fluid reaction surfaces (i.e., impellers)
No. of patents: 20
Last issue date: 01/08/2008

Number	Title	Issue Date
7316502	Mixing blade, blending apparatus, and method of mixing A blade for mixing a material includes a disk comprising a plastic or composite material. The disk may have one or more circumferentially-spaced openings extending through the disk from a substantially flat top surface to a substantially flat bottom surface. The ope...	01/08/2008
7114844	Aeration apparatus and method The present invention provides an improved aeration impeller for use in a mixing assembly having an axis of rotation. The aeration impeller includes a hub and a first and second blades that are connected to the hub. Each blade has a first portion positioned at an an...	10/03/2006
6524073	Spinner with continuous 3-fold symmetry for multiple utilitarian, educational and ornamental uses The Mamikon spinner is a continuous 3 twist, single surface, having threefold symmetry and dynamic properties. It spins with a slight flow of air in the direction of the axes, and when rotated about the axis of symmetry, it acts as a blade, propeller or f...	02/25/2003
6364614	Spinner with continuous 3-fold symmetry for multiple utilitarian, educational and ornamental uses The Mamikon spinner is a continuous 3 twist, single surface, having threefold symmetry and dynamic properties. It spins with a slight flow of air in the direction of the axes, and when rotated about the axis of symmetry, it acts as a blade, propeller or f...	04/02/2002
5938325	Stirring rod with flexible extensions for mixing materials An elongate rod having a first end or end area and an oppositely disposed second end or end area, the first end suitably structured for connecting to a rotary drive such as the chuck of a hand held drill type motor, food blender drive or the like for exam...	08/17/1999
5797728	Disk-shaped impeller for mixing fluids An impeller for mixing includes a disk having substantially identical top and bottom surfaces, opposed and spaced apart from each other and including a plurality of holes extending through the disk and arranged symmetrically around a circle having a small...	08/25/1998
5785424	Agitator blade having agitators with open first and second ends and inner fabrics therein An agitator blade comprises one or more cylindrical local agitators which have inner fabrics therein and are radially mounted on a mounting frame, which in turn is secured to an agitator shaft. The inner fabrics can include, for example, one or more twist...	07/28/1998
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
5470148	Portable cement-mixing apparatus having upper and lower notched plates affixed to a shaft The apparatus for mixing cement includes a shaft connected to an engine for rotating the shaft. The shaft has mounted thereon a plurality of paddles for providing a pushing force and arranged so as to channel the flow of cement mix about the shaft to allo...	11/28/1995
5326168	Stirring blade unit A stirring blade unit includes a plurality of main blade bodies radially projected from the outer periphery of a boss and auxiliary blade bodies respectively provided at tip portions of the main blade bodies in a manner so as to be downwardly projected. W...	07/05/1994
5318360	Gas dispersion stirrer with flow-inducing blades A gas dispersion stirrer comprises a rotatable hollow shaft and at least one circular hollow stirring member disposed thereon wherein the cavity in the stirring member communicates with the hollow shaft. The stirring member has aeration apertures disposed...	06/07/1994
5277550	Agitating vane A plurality of flat plates are laterally disposed at an outer circumference of a hub and auxiliary vanes are disposed in parallel to at least side edges of each of said flat plates while being spaced apart from the side edges. Accordingly, an occurrence o...	01/11/1994
5261745	Mixing apparatus with frusto-conically shaped impeller for mixing a liquid and a particulate solid An improved mixing apparatus for mixing a liquid and a particulate solid material within a container such that the pigments and/or other solid particulate materials, which are initially precipitated out and usually accumulated at the bottom of the contain...	11/16/1993
5253980	Agitating vane An agitating vane in which a plate-like vane is disposed at an extreme end of a rotary shaft to agitate liquid has a feature that auxiliary vanes for covering a part of vane with a clearance being left are disposed in front of the surface of the vane in i...	10/19/1993
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
5090816	Fluid mixing device The invention features a mixing device comprising a rotatable impeller having a multiplicity of blades. Each blade of the impeller has an optimal angle of attack with respect to the fluid being mixed. An elliptical, fluid flow-through aperture in each blade pr...	02/25/1992
4302940	Patterned porous laminated material A transpiration air cooled combustor for use with gas turbine engines includes an annular wall of laminated readily deformable metal having plural layers of diffusion bonded material in a combustor wall with inner and outer surfaces; each of the inner and...	12/01/1981
4092513	Stirrer hub assembly The field stirrer herein has an upwardly concave pan shape and is formed as a sheet metal stamping. It has a central planar section and a surrounding section comprising a plurality of circumferentially arranged segments with planar surfaces, the segments ...	05/30/1978
4083653	Stirring device A stirring device employs a shaft-mounted hub with five axially nested, radially extendable fins shaped to not only provide compact nesting of five fins to enter a bung opening of a drum, but also to provide ample surface area when extended for stirring....	04/11/1978
4021024	Perforated baffle-impeller and process of concentrating dense masses Vessel internals comprising at least one novel perforated, baffle-impellor combination attached to rotatable drive shaft are disclosed for use in a stirred, horizontal vessel containing solid particulate matter. Using such internals, dense masses present ...	05/03/1977

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Class 416/231A - Mixers or agitators