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| Number | Title | Issue Date |
| 7334936 | Mixing device and method of mixing The present invention is a mixing device and a method of mixing viscous fluids with a mixing device. The mixing device includes a shaft and a support mounted for rotation with the shaft. A plurality of vanes extend from the support and are mounted for rotation with ... | 02/26/2008 |
| 7293955 | Supersonic gas compressor A gas compressor based on the use of a driven rotor having a compression ramp traveling at a local supersonic inlet velocity (based on the combination of inlet gas velocity and tangential speed of the ramp) which compresses inlet gas against a stationary sidewall. I... | 11/13/2007 |
| 7278598 | Blender blade In one embodiment of the invention, a blender blade (10) includes a body portion (12) having an upper surface (15) and a lower surface (16). The body portion includes an aperture (13) effectively defining an axis of rotation for th... | 10/09/2007 |
| 7210910 | Enhancements to high efficiency ceiling fan Twisted ceiling fan blades for low, medium and high speed operation of less than approximately 250 rpm. The novel blades twisted blades can be configured for 60″ and 64″ diameter fans, and have less blades (3 for example) than conventional flat type bladed fans ... | 05/01/2007 |
| 7128535 | Turbine drum rotor for a turbine engine The present invention relates to an improved turbine structure for use in a gas turbine engine. The turbine structure includes a one-piece drum rotor and a plurality of turbine blades attached to the one-piece drum rotor. The one-piece drum rotor includes integrally... | 10/31/2006 |
| 6910483 | Double-ended blower and volutes therefor A double-ended variable speed blower for Continuous Positive Airway Pressure (CPAP) ventilation of patients includes two impellers in the gas flow path that cooperatively pressurize gas to desired pressure and flow characteristics. Thus, the double-ended blower can ... | 06/28/2005 |
| 6868903 | Production tool A production tool for use in heavy oil production is provided. Operating to provide for better inflow of oil and sand to a bottom hole rotating pump, the production tool prevents sand up conditions and keeps the well cellar and the walls of the casing clean to ensur... | 03/22/2005 |
| 6520740 | Energy efficient fan One or more fan blades extend radially from a hub that is freely rotatable relative to a main drive shaft. The hub is coupled to the drive shaft so that, when the drive shaft is moved through an orbital path in a cyclical motion, the hub moves in a twirli... | 02/18/2003 |
| 5501524 | Method for mixing granulates, powders and liquids and a device therefor Method for mixing granulates, powders and liquids in a continuous process, whereby the material is placed in a mixing housing and is mixed therein with the aid of a rotor equipped with mixing arms. The material is thereby moved to and fro many times durin... | 03/26/1996 |
| 5127798 | Air mixer An air mixer having a rotor with upper and lower horizontally oriented blades which draws air from above and below into the interior of the rotor so that thorough mixing occurs, after which the mixed air is expelled laterally by vertically oriented blades... | 07/07/1992 |
| 4813787 | Blending apparatus A blending apparatus has a rotor provided with louvers and mixing teeth. The louvers have openings which vary in size and act to convey materials being cut and blended through the disc. The mixing teeth extend from peripheral edges of the rotor. Adjacent ... | 03/21/1989 |
| 4764084 | Inlet flow guide for a low pressure turbine The inlet flow guide includes a generally cylindrical shroud plate, a generally cylindrical bridge piece, elongated attachment members, biasing members and sealing members. The shroud plate is in confronting cylindrical sections, is adapted to be attached... | 08/16/1988 |
| 4693673 | Ceiling fan A ceiling fan having a plurality of fan blades which generate axial air flow and which include vane portions positioned angularly to the surface of the blades which direct air flow radially from the blades to increase the range of circulation of the air i... | 09/15/1987 |
| 4648720 | Beating/emulsifying tool for a domestic electrical appliance for food preparation A domestic electrical appliance for food preparation has a generally cylindrical bowl and a vertical shaft rotatably mounted in this bowl. A beating/emulsifying tool of the invention is arranged to be mounted on the shaft. The tool comprises a disc arrang... | 03/10/1987 |
| 4515527 | Center plate-blade interconnection on a centrifugal blower wheel A center plate-blade attachment configuration for a centrifugal blower wheel which gives improved high speed rupture strength and improved resistance to the center plate slipping circumferentially relative to blades. The inner edge of each blade is provid... | 05/07/1985 |
| 4388042 | Rotor for turbo engines A rotor for turbo engines, for example for small gas turbines or turbo-superchargers (exhaust-driven superchargers). The rotor has at least two vane wheels, and a shaft with structural elements rigidly secured thereto. The rotor, with the vane wheels and ... | 06/14/1983 |
| 4330236 | System for keying discs to a shaft A face disc keyed to the shaft and keyed to a peripheral flange on a turbine blade disc eliminates stress concentration at the highly stressed juncture of the blade disc and shaft on fabricated turbine rotors.... | 05/18/1982 |
| 4305673 | High efficiency mixing impeller The mixing impeller of the invention has a central, axial hub adapted for attachment to a rotatable driven shaft of a mixer motor. Mounted on the hub is a disc that extends radially from the hub. Circumferentially spaced around the disc are a number of im... | 12/15/1981 |
| 4245950 | Turbine rotorconstructions Steam introduced into a turbine casing from a steam inlet is longitudinally divided and each divided steam portion flows in respective first stages which are disposed on the shaft adjacent to each other. The shaft and a plurality of disks which are manufa... | 01/20/1981 |
| 4155151 | Heavy duty impeller and method of fabricating the same A fabricated, heavy duty centrifugal pump impeller wherein the relatively heavy gauge shrouds are formed by plastic deformation such as by metal spinning, stretch forming or hydroforming. The hub is similarly formed and a plurality or regularly circumfere... | 05/22/1979 |
| 4086027 | Shrouded rotor blade annulus for a centripetal turbine stage A shrouded rotor blade annulus for a double flow centripetal turbine stage, comprising a center row of radial blades and two end rows of axial blades mounted on the periphery of a turbine rotor disc or drum, and two segmented annular shrouds, each coverin... | 04/25/1978 |
| 4017212 | Bladed rotor A bladed rotor comprising a plurality of wheels each having a central solid hub and blades formed integrally with the hub, the wheels having radially extending annular end faces which are abutted and welded together, a pair of journals being abutted and w... | 04/12/1977 |
| 4004786 | Stirring device A stirring device is disclosed for mixing liquid and dry ingredients in a tank. The stirring device employs an agitator prop having claws or fingers formed thereon to break up balls of dry ingredients, a shear plate to strain and shear ingredients forced ... | 01/25/1977 |
| 3953150 | Impeller apparatus A high speed, high capacity impeller assembly for a double suction, double volute centrifugal pump. The impeller assembly includes an impeller and two inducers rotatably mounted on a shaft. The inducers feed influent into the eye of the impeller on either... | 04/27/1976 |
