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| Number | Title | Issue Date |
| 7927068 | Expandable impeller pump An impeller includes a hub, and a plurality of blades supported by the hub, the blades being arranged in at least two blade rows. The impeller has a deployed configuration in which the blades extend away from the hub, and a stored configuration in which at least one... | 04/19/2011 |
| 7824151 | Zero running clearance centrifugal compressor A turbine engine includes an engine housing enclosing: a centrifugal compressor having a rotor; at least one centrifugal compressor bore mounted to the rotor; at least one blade mounted to each of the at least one centrifugal bore and disposed proximate to at least ... | 11/02/2010 |
| 7591632 | Side channel compressor with housing shells and running wheel The invention relates to a side channel compressor, comprising a housing shell and a running wheel. The running wheel is mounted to be rotatable with respect to the housing shell to provide two annular sealing areas between the housing shell and the running wheel. T... | 09/22/2009 |
| 7350352 | Fluid coupling A fluid coupling comprising a pump having an annular pump shell with an annular core ring mounted on a pump hub and a plurality of impellers radially arranged in the pump shell; a turbine arranged being opposed to the pump and having an annular turbine shell with an... | 04/01/2008 |
| 7322805 | Impeller adjustment device and method for doing the same for close coupled pumps A method and apparatus are provided for adjusting an impeller in a motor and impeller assembly of a pumping device. The method features steps of: tightening mounting bolts so as to move the motor and impeller assembly of the pumping device forward until the impeller... | 01/29/2008 |
| 7246994 | Spacing arrangement A spacing arrangement for a gas turbine engine 10. The spacing arrangement being arranged such that as a rotor blade 26 of a compressor 13 rotates, the rotor disc 28 will move outwards and forwards to maintain a substantially constant gap... | 07/24/2007 |
| 7240682 | Washing fluid pump The invention concerns a washing fluid pump (1) for windows and/or headlamp cleaning installations on motor vehicles including at least one motor, at least one pump housing (2) with at least one impeller (11) arranged therein, at least one intak... | 07/10/2007 |
| 7186071 | Variable flow water pump A variable flow water pump includes a housing having an impeller mounted on a rotatable shaft. The pump impeller has a plurality, of vanes fixed to a back plate or flange. A circumferentially surrounding shroud is axially movable within the housing and may move betw... | 03/06/2007 |
| 7168915 | Apparatus for axial adjustment of chopper pump clearances Axial adjustment apparatus is provided in a centrifugal pump to effect adjustment of the impeller relative to adjacent pump elements. Specifically preferred is adjustment apparatus in a chopper pump that provides adjustment of the impeller relative to a chopper plat... | 01/30/2007 |
| 7109595 | Small multi-functional butane gas-powered portable electric generator The object of the present invention is a multi-functional electric generator comprising, an engine, a generator, a voltage-stabilizer control circuit, a gas storage gauge and a lighter. A manual electrical rod can be assembled to a side of the engine allowing the ge... | 09/19/2006 |
| 7083377 | System and method and for use in hydroelectric power station and hydroelectric power station employing same It is generally known in relation to hydroelectric power stations that, before the water impinges on the turbine of the hydroelectric power station and there delivers its energy to the turbine, the water flows through a pipe. Depending on the respective nature of th... | 08/01/2006 |
| 7048502 | Fluid coupling A fluid coupling comprising a pump having an annular pump shell with an annular core ring mounted on a pump hub and a plurality of impellers radially arranged in the pump shell, and a turbine arranged facing the pump and having an annular turbine shell with an annul... | 05/23/2006 |
| 7018165 | Method of minimizing the gap between a rotating turbine blade and a casing of a turbine, a turbine, and a method of determining the wear behavior of a wheel of a rotor Method of minimizing the gap between a wheel and a casing of a turbine, a turbine, and a method of determining the wear behavior of a wheel of a rotor. To minimize the gap between a wheel and a casing in a turbine, optical methods are also often used in order to min... | 03/28/2006 |
| 6997688 | Secondary containment for a magnetic-drive centrifugal pump A centrifugal pump includes a housing having a housing cavity, an inlet, and an outlet. A pump shaft is located within the housing cavity. A radial bearing coaxially surrounds the pump shaft. The shaft and the radial bearing are rotatable with respect to one another... | 02/14/2006 |
| 6921245 | Coaxial seal for a pump A sealing mechanism for a fluid pump comprises first and second seal members which are coaxially and radially oriented relative to each other, and are positioned between the rotating and non-rotating elements of the fluid pump to maintain a competent seal which is s... | 07/26/2005 |
| 6896476 | Fan having magnetic levitation blade assembly A fan includes a casing having a bottom wall and a shaft mounted inside the casing for rotatably supporting a rotary blade assembly comprised of blades inside the casing and above the bottom wall with the blade assembly being axially movable with respect to the shaf... | 05/24/2005 |
| 6893213 | Method and apparatus for adjusting impeller clearance in a pump An impeller clearance adjustment system for providing for a desired clearance between an impeller and a housing by adjusting a spacing (10) between a thrust housing (11) and a frame (12) using a plurality of evenly-spaced shoulder screws (21 | 05/17/2005 |
| 6746206 | Centrifugal pump A centrifugal pump wherein a threaded ring is secured in its position by way of a pressure body which presses it against the axial abutment of a pump shaft and which is screwed axially to the end of the pump shaft. The threaded ring is seated loosely on the pump sha... | 06/08/2004 |
| 6672830 | Vertical pump with oil lubricant; C-seal for pump; and pump with threaded shaft position adjustment A centrifugal pump includes a C-shaped sealing assembly including an annular spring disposed between opposing legs of a base member. The spring biases the legs away from one another into sealing positions. In other embodiments, a vertical pump may be prov... | 01/06/2004 |
| 6669439 | Variable flow impeller-type water pump with movable shroud A variable-capacity water pump includes a housing having an impeller mounted on a rotatable shaft. The pump impeller has a plurality of vanes fixed to a flange. A circumferentially surrounding shroud is axially movable within the housing and may move betw... | 12/30/2003 |
| 6592335 | Ribbon drive pumping apparatus and method The ribbon drive pump has an extended tube having an intake at a first end and an outlet at a second end. A ribbon formed of helical coils is mounted in the tube for rotation and the frequency of the coils decreases from the first end to the second end of... | 07/15/2003 |
| 6551058 | Rotatory pump having a knobbed impeller wheel, and a knobbed impeller wheel therefor A rotatory pump has a housing (20) and an impeller wheel (40) which is mounted on a driving shaft (30) to rotate integrally therewith. The driving shaft is rotatably supported in the housing. The driving shaft also has a disk (44) disposed to be concentri... | 04/22/2003 |
| 6527520 | Ribbon drive pumping with centrifugal contaminant removal A ribbon drive pumping apparatus and method for liquids is disclosed wherein the inherent centrifugal separation that occurs adjacent the pump inlet is used to remove contaminants. The pump has an extended tube having an intake at a first end and an outle... | 03/04/2003 |
| 6431823 | Centrifugal pump with variable capacity and pressure A centrifugal pump includes a casing having an outlet chamber and an impeller rotatable in the casing. A set of controlling sideplates are installed in the outlet chamber. The controlling sideplates are movable along the axis of the impeller, positioned s... | 08/13/2002 |
| 6419450 | Variable width pump impeller A variable width pump impeller that allows for the selection of a fixed impeller width from two or more possible impeller widths. The impeller comprises a first impeller shroud having a plurality of impeller vanes and a second impeller shroud having an eq... | 07/16/2002 |
| 6375414 | Seal for a pump, and a pump comprising the seal A pump (1) for pumping a slurry comprises a pump housing (2) defining a pumping chamber (5) with an impeller (6) located therein for pumping the slurry from an axial inlet port (7) to a radial outlet port (8). The impeller (6) is carried on a pump shaft (... | 04/23/2002 |
| 6357998 | Ribbon drive pumping apparatus and method A ribbon drive pumping apparatus and method for liquids is disclosed. The pump has an extended tube having an intake at a first end and an outlet at a second end. A ribbon formed of helical coils is mounted in the tube for rotation and the frequency of th... | 03/19/2002 |
| 6357997 | Ribbon drive power generation apparatus and method A ribbon drive power generation system and method is disclosed. The system is equipped with an extended tube having an intake at a first end and an outlet at a second end. A ribbon formed of helical coils is mounted in the tube for rotation and the freque... | 03/19/2002 |
| 6350101 | Barrel pump The barrel pump has a tubular pump housing and a rotor shaft which is supported by a support tube and, at its bottom end, bears an elastic cone which has a circumferential groove which interacts with the opening edge of an inlet in the manner of a snap-ac... | 02/26/2002 |
| 6309174 | Thrust bearing for multistage centrifugal pumps A pump has a thrust bearing has a casing with an inlet port and a discharge port. A shaft is positioned within the pump. A thrust bearing is coupled to the shaft. A pressure alterable bearing cavity is located within the casing. The pressure alterable cav... | 10/30/2001 |
| 6203273 | Rotary machine A rotary machine (10) having rotor elements (54-66), (114) and seal lands (86, 112) is disclosed. Various construction details are developed for facilitating assembly of the machine. In one embodiment clearances are established between rotor blades (66) a... | 03/20/2001 |
| 6196263 | Methods and apparatus for metering flowable material A device for metering flowable material is formed from two components which are movable relative to each other. The relative movement of the components varies the width of a gap between the components to control the flow of material through the gap. One o... | 03/06/2001 |
| 6139256 | Apparatus for controlling the concentricity of a member with a centering device Conventional gas compressors use dry gas sealing arrangements mounted on a shaft of the gas compressor. Functionally, for the dry gas sealing arrangement to properly seal, the concentricity of shaft and the dry gas sealing arrangement must be maintained a... | 10/31/2000 |
| 6074167 | Variable geometry centrifugal pump A variable geometry centrifugal pump varies the pump output and/or centrifugal pump force by varying the effective radial length of the impeller vanes impelling fluid. The pump provides an impeller having graduated vanes with a shorter vane section for lo... | 06/13/2000 |
| 5975840 | Pitot tube pump having axial-stabilizing construction A centrifugal pump of the pitot tube type is structured with axially stabilizing elements which assist in stabilizing the pitot tube assembly of the pump during high pressure operating conditions. The axially stabilizing elements include at least one seat... | 11/02/1999 |
| 5971702 | Adjustable compressor bundle insertion and removal system A rotary machine, such as a compressor, includes a casing having an annular cavity. The cavity is stepped to include a first circumferential surface of a first size and a second circumferential surface of a second size, less than the first size. At least ... | 10/26/1999 |
| 5846049 | Modular containment apparatus for adjusting axial position of an impeller in a magnetically coupled apparatus A pump is provided which includes an axially adjustable impeller in order to adjust the distance between the impeller and a housing section adjacent the impeller and thereby increase pump efficiency. The pump also can be made to have a removable module in... | 12/08/1998 |
| 5827044 | Fan system with variable air volume control A centrifugal fan apparatus for installation in an air plenum adapted to provide pressurized air to a ventilating system includes a centrifugal fan rotor having front and rear sidewalls and a number of blades extending between these sidewalls. The platfor... | 10/27/1998 |
| 5823261 | Well-pump alignment system An improved well-pump for geothermal wells, an alignment system for a well-pump, and to a method for aligning a rotor and stator within a well-pump, wherein the well-pump has a whistle assembly formed at a bottom portion thereof, such that variations in t... | 10/20/1998 |
| 5807070 | Bearing arrangement for the rotor of a radial or diagonal flow compressor A fixed bearing for a radial or diagonal flow compressor is guided in a damping bush whose axial position can be fixed by means of a reconciling plate to establish a desired running gap with respect to the compressor housing. The damping bush has a receiv... | 09/15/1998 |
