Quotables
"If you build a better mousetrap, you will catch better mice."
George Gobel
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 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 |
| 7284492 | Replaceable hook modules A hook module assembly for a tufting machine is provided that allows for broken and damaged hooks of a level cut loop tufting machine to be replaced. The hook module assembly includes modular blocks having a series of slots in which level cut loop hooks are received... | 10/23/2007 |
| 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 |
| 7108266 | Fan cooled seal seat A seal assembly including a rotatable seal head subassembly also includes a fan that rotates with the seal head assembly, with the fan drawing air through a pump housing for purposes of cooling. ... | 09/19/2006 |
| 7074017 | Quick-release pump module A slurry pump includes a power frame as well as a wet end, and the wet end comprises a casing, an impeller and wear ring in the casing, a stub shaft connected to the impeller, a sleeve assembly for the stub shaft and an adapter for adjusting the wet end to the power... | 07/11/2006 |
| 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 |
| 6692222 | Micro gas turbine engine with active tip clearance control In a micro gas turbine engine, a capacitive sensor is used for measuring a tip clearance of a radial compressor section thereof, and an actuator is used for axially displacing a rotor shaft in response to an output from the capacitive sensor. Because the ... | 02/17/2004 |
| 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 |
| 6368053 | Impeller clearance adjustment system An impeller clearance adjustment system provides for the desired clearance between an impeller and suction housing irrespective of the amount of torque applied to the bolts of the adjustment system. A bearing housing has a plurality of generally evenly sp... | 04/09/2002 |
| 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 |
| 5961291 | Turbo vacuum pump with a magnetically levitated rotor and a control unit for displacing the rotator at various angles to scrape deposits from the inside of the pump A turbo vacuum pump has a rotor and magnetic bearings. The magnetic bearings are held in a housing having a suction port and an exhaust port, and support the rotor rotatably. A peripheral flow pump stage and screw pump stage are formed in the rotor, so th... | 10/05/1999 |
| 5951244 | Impeller clearance adjustment system An impeller clearance adjustment system provides for the desired clearance between an impeller and suction housing irrespective of the amount of torque applied to the bolts of the adjustment system. A bearing frame has a plurality of generally evenly spac... | 09/14/1999 |
| 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 |
| 5800122 | Bearing clearance adjustment device An improved device for adjusting the bearing clearance of a pump is shown and described. In a preferred embodiment, an annular piston is provided adjacent to a bearing assembly, and an elastomeric member is provided adjacent to the piston. The elastomeric... | 09/01/1998 |
| 5653578 | Vertical-axis waterpower machine In a vertical-axis waterpower machine, the shaft is mounted in a bearing-supporting star. It has a track ring for a supporting bearing. Supporting-bearing segments are supported via adjusting elements on a supporting ring firmly connected to the bearing-s... | 08/05/1997 |
| 5344291 | Motor pump power end interconnect A combination frame arranged between a centrifugal pump and a driver, such as a motor, the combination frame having in a central region thereof a compartment for holding shaft bearings and a quantity of oil, and a pump adapter frame arranged between said ... | 09/06/1994 |
| 4927323 | Radial flow fluid pressure module A radical flow mechanism is provided having a symmetric housing assembly defining a hollow rotor chamber. A symmetric shaft and rotor assembly is supported for rotation in the rotor chamber. A plurality of radial flow paths are defined by the rotor and th... | 05/22/1990 |
| 4822241 | Automatic dishwasher with a pump having a selectively adjustable impeller clearance An automatic dishwasher includes a cabinet enclosing an interior washing chamber with a pump mounted in the cabinet for pumping liquids into and out of the washing chamber. The pump includes a housing having spaced apart walls and a rotatable motor shaft ... | 04/18/1989 |
| 4578018 | Rotor thrust balancing An assembly is disclosed for automatically balancing thrust on the rotor of a gas turbine engine. An annular chamber axially positioned relative to the rotor is adapted to receive pressurized hydraulic fluid and apply it to the rotor. The force thereby ap... | 03/25/1986 |
| 4502832 | Turbo-molecular pump A turbo-molecular pump has passive magnetic bearings which are radially stable but axially unstable and mechanical thrust bearings acting axially, the magnetic bearings and the stator forming a structural unit movable axially within the pump housing and c... | 03/05/1985 |
| 4499562 | Mixer having workhead operable in mixing and pumping modes A mixer of the kind having a work head 50 comprising a rotor 60 rotatable within a stator 70 to cause liquid to flow through the stator and having a mixing and shearing effect in the liquid. The mixer has a motor 12 which is vertically movable within a ho... | 02/12/1985 |
| 4492018 | Method of axially positioning a rotating annular member supporting shaft within a support A scheme for accurately and quickly axially positioning a rotatable member such as the axles of a differential or a shaft supported impeller of a centrifugal pump within a housing or similar support for rotation therein with predetermined axial bearing cl... | 01/08/1985 |
| 4487557 | Magnetically driven centrifugal pump A centrifugal pump for circulating fluids at high pressure comprises an impeller having an axis of rotation, a casing defining a pumping chamber, a nonmagnetic canister sealed at one end and extending away from the pumping chamber surrounding an extension... | 12/11/1984 |
| 4439096 | Impeller adjuster for centrifugal pump A centrifugal pump having an adjustable feature enabling precise adjustment of the impeller's location.... | 03/27/1984 |
| 3954230 | Flow elements for influencing flowing media A flow element for influencing flowing media including a bending-elastic exterior covering, a variable skeleton carrier in the covering, and a support between the exterior covering and the skeleton carrier, whereby movement of the latter is transmitted to... | 05/04/1976 |
| 3947149 | Submerged fuel pump with bevel sided impeller blades In a peripheral fluid pump designed for operation submerged in a vehicle fuel tank and comprising an impeller raceway with an outer annular channel, appropriately placed stripper abutments and an inlet and outlet on opposite sides of the raceway in commun... | 03/30/1976 |
