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| Number | Title | Issue Date |
| 8105011 | Fan comprising a fan wheel A fan for cooling a circuit board (26) has a fan wheel (10; 10′) that is adapted for rotation about a rotation axis (11) and in a predetermined rotation direction (14), and an outer wall (18) that is rigidly joined to an inner wa... | 01/31/2012 |
| 7837431 | Impeller and sewage treatment pump including the same In an impeller 11, an inlet portion and an outlet portion are provided at one end side and the other end side in the axial direction, respectively. An inlet 29 is formed in the lower part of the inlet portion, and an outlet is formed in the side face o... | 11/23/2010 |
| 7497657 | Beam jet propellor A beam jet propeller is provided, especially a beam jet propeller which increases the friction force of the fluid by spiral or linear diversion protrusions or diversion grooves on the inner wall of a tube, such that original loose fluid can be twisted together into ... | 03/03/2009 |
| 7488151 | Vortical flow rotor A rotor for use with a fluid flow generator or reactor, said rotor being rotatable about a central axis of the rotor and having a at least one vane arranged, in use, to induce a generally axial fluid-flow into the central axial region of the rotor and an outward flo... | 02/10/2009 |
| 7419354 | Centrifugal pump with screw pump accelerator Method and apparatus for pumping drilling fluid (mud) containing drill cuttings, comprising a centrifugal pump with screw pump accelerator. The screw pump creating positive pressure for centrifugal pump inlet to increase performance. The screw pump mud level fluctua... | 09/02/2008 |
| 7399155 | Fluid flow guide element and fluid flow apparatus equipped therewith A fluid flow guide element (1) constructed, for example, as a diffuser having an inlet opening (2) and an outlet opening (3) whose respective cross-sectional areas differ from one another. Corresponding to the exterior view shown in FIG.... | 07/15/2008 |
| 7344353 | Helical wind turbine A vertical axis wind turbine wherein the blades of the rotor section of the wind turbine comprise at least sections wherein the blades have a non-linear configuration in the “z” axis. In a preferred embodiment, the blades of the rotor section have a linear trail... | 03/18/2008 |
| 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 |
| 7311491 | Molecular drag, turbomolecular, or hybrid pump with an integrated valve A molecular drag, turbomolecular, or hybrid turbo/drag pump (5) of the invention has an outlet stage with a cylindrical peripheral wall (17) and a radial outlet orifice (23) passing through the cylindrical peripheral wall (17). An annular... | 12/25/2007 |
| 7207767 | Inducer, and inducer-equipped pump The present invention is concerned with an axial-flow or mixed-flow inducer (3) which is disposed upstream of a main impeller (2) for improving the suction capability of a pump such as a turbopump. In the inducer (3), a blade angle (βbt | 04/24/2007 |
| 7096712 | Material testing system for turbines The wear resistance of impellers used in multi-stage turbine pumps is tested by using a multi-stage turbine pump having impellers with different physical properties to pump a fluid containing small amounts of an abrasive material. After the fluid has been pumped for... | 08/29/2006 |
| 7097416 | Rotary disc pump A rotary disc pump for pumping fluid materials, comprises a housing having a front and a back wall forming a chamber with a generally coaxial inlet in the front wall and a generally tangential outlet, an impeller is mounted co-axially within the chamber and comprise... | 08/29/2006 |
| 7052230 | Pump assembly A pump assembly including a pump, a pump frame and a motor, the pump including a pumping member which is mounted in a pump housing, relative rotation of the pumping member with respect to the pump housing causing pumping of fluid, and the motor including a rotor and... | 05/30/2006 |
| 7021890 | Turbo pump In order to provide a high-head, large-delivery turbopump adapted for excellent suction performance and foreign matter passability by having characteristics of an inducer, axial flow vanes, and mixed flow vanes imparted together to centrifugal vanes, a progressively... | 04/04/2006 |
| 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 |
| 6974305 | Roto-dynamic fluidic systems An apparatus and method for generating cavitation in fluids is disclosed. The apparatus includes a housing for receiving a rotor, which is driven by a motive force. Multiple embodiments of the rotors are disclosed including, but not limited to, centrally feed, centr... | 12/13/2005 |
| 6409468 | Turbo-molecular pump A compact turbo-molecular pump has a relatively short axial length and yet provides sufficient evacuation and compression capabilities. The turbo-molecular pump comprises a casing (10) which contains an exhaust vane section (L1) having rotary vanes (30) o... | 06/25/2002 |
| 6390768 | Pump impeller and related components A pump impeller and related components for pumping water, sewage or other pumped material from one location to another is disclosed. The pump impeller includes a core member having a back face, a front face, and a central bore extending therebetween. A fi... | 05/21/2002 |
| 6343909 | Centrifugal pump A centrifugal pump with an impeller which has a single helically-formed blade and which is not sensitive to sand abrasion or seizing of the impeller is achieved by providing the impeller (1) with a shielding plate (3) arranged on the suction side which tr... | 02/05/2002 |
| 6013140 | Laser hardening of screw forms A harden screw form and methods of making same for use with, for example, positive displacement rotary axial screw pumps are disclosed. The methods include the use of a CNC machine with a laser and a special, newly developed optic for selectively hardenin... | 01/11/2000 |
| 5893702 | Gas friction pump A gas friction pump including a rotor located in the pump housing and formed of a plurality of coaxial first cylindrical elements, and a stator located in the housing and formed of a plurality of second cylindrical elements coaxial with the first cylindri... | 04/13/1999 |
| 5782604 | Pump A pump (1) has a rotor (4) and a stator (3) disposed closely adjacent to and biased towards it, but spaced apart from a surface of the rotor. The stator (3) or rotor (4) has recesses (30) on its surface facing the rotor or stator respectively, and an inle... | 07/21/1998 |
| 5487644 | Pump having a single or a plurality of helical blades A vertical pump (1) having a single or plurality of helical blades (10, 11, 12) mounted on a forward end of a rotary drive shaft (2) of the pump. The pump is of nonblocked type in which the helical blade or blades (10, 11, 12) are disposed with superior b... | 01/30/1996 |
| 5427501 | Fuel pump impeller with pump down extension A centrifugal pump for a fluid tank includes a pump housing enclosing an electric motor, a primary impeller coupled to the drive shaft of the motor, and a secondary impeller extending axially downward from the primary impeller proximate to the floor of th... | 06/27/1995 |
| 5425617 | Constant static pressure runner in an axial flow turbine A rotor is provided wherein an rotor core and a jacket cooperate to provide a continuous variation of area left for fluid transit. This continuous variation of area left for fluid transit produces a continuous axial acceleration of fluid and provides a fi... | 06/20/1995 |
| 5344281 | Rotary vortex machine A rotary vortex machine having a stator (1) with an internal annular space (4) accommodating vanes (9) and a rotor (6) with an external annular space (7) accommodating a bridge (10) dividing the external annular space (7) into suction and delivery volumes... | 09/06/1994 |
| 5297925 | Water column floating pump This new invention, the water column floating pump, is a fluid pump which uses a rotationally symmetric container to pump fluid from an inlet reservoir to the outlet end of the rotationally symmetric container. The rotationally symmetric container is adap... | 03/29/1994 |
| 5261783 | Kinetic pump having a centerless impeller The invention is a kinetic pump having a centerless impeller. The pump comprises a pump body rotated by a powered means either having a rotatable shaft or driving a peripheral belt drive. The pump body has a recess formed therein as well as at least one s... | 11/16/1993 |
| 5240372 | Centrifugal pumps and systems utilizing same A centrifugal pump for a first fluid has a housing with an inlet and includes a rotatable impeller which is adjacent to a stationary plate. The inlet communicates with a space defied between the impeller and the plate. An outlet adjacent to the periphery ... | 08/31/1993 |
| 5110483 | Separation of particles adsorbed on carrier material A method is described according to which composite particles made up of carrier magnetite particles with calcium carbonate and calcium phosphate flakes adhered thereto and present in a fluid suspension are separated into particles and flakes. To accomplis... | 05/05/1992 |
| 5090867 | Rotating fluid machine for reversible operation from turbine to pump and vice-versa A rotating fluid machine for reversible operation from turbine to pump and from pump to turbine having a simple structure which allows for easy manipulation when reversing operation, and having a low change in efficiency when the machine operates in rever... | 02/25/1992 |
| 4792282 | Liquid pump A liquid pump having a rotary impeller of improved construction to eliminate the cavitation in the pump housing. Motor noises are muffled because the exhaust port of the pump is on the heel of the skimmer plate of the pump which is slightly below the wate... | 12/20/1988 |
| 4779575 | Liquid friction heating apparatus Liquid friction heating apparatus includes a pump rotor and an impeller rotor in a liquid reservoir. As the pump and impeller are rotated they impart frictional heat to the liquid. Further, the pump at all times delivers liquid to the inlet of the impelle... | 10/25/1988 |
| 4655678 | Combined turbo-molecular pump A turbo-molecular pump has a housing containing a plurality of stationary plates which are alternately arranged with respect to a plurality of rotary plates connected to a rotationally driven rotor. Spiral flow grooves all having the same winding directio... | 04/07/1987 |
| 4648796 | Centrifugal pump for very thick and/or viscous materials and products A centrifugal pump used for conveying very thick and/or viscous materials and products which comprises a screw impeller of at least one start, of which the component blade, which is in the form of a helix (8) having a pitch which increases in the material... | 03/10/1987 |
| 4531892 | Apparatus for pumping of pulp The apparatus comprises a centrifugal pump (1) fed by a screw feeder (8). The screw feeder comprises a screw (9) with a partially open thread (11). The screw (9) is driven separately in opposed direction to and with a lower speed than the impeller (3) of ... | 07/30/1985 |
| 4529354 | Total flow turbine A total flow turbine includes a housing defining a rotor chamber with a rotor rotatably mounted within the chamber and includes a plurality of passages opening at an outer radial face of the rotor and spiraling in a converging fashion inward to a central ... | 07/16/1985 |
| 4427336 | Single vane rotodynamic impeller A single vane impeller having particular application for pumping liquids having a high solids content is disclosed having an axial feed inlet configuration and a centrifugal outlet configuration giving an impeller capable of outlet modification by cutting... | 01/24/1984 |
| 4363572 | Injector for a material transport system An injector for a material transport system includes a helical inducer having a housing with a fluid input port, a material input port and a discharge port, each port is open to an internal chamber of the housing. A rotor with a helical blade is mounted t... | 12/14/1982 |
| 4347035 | Centrifugal pump with single blade impeller A centrifugal pump which has a single-blade impeller and is used particularly for the transport of long-fibered deposited solids, for example, in sewage. The pump impeller discharge end lies in a radial plane adjacent a housing wall there being a clearanc... | 08/31/1982 |
