Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 8021132 | Pump intake for electrical submersible pump An electrical submersible well pump assembly having a pump, a pump motor, a seal section, and an intake in the head of the seal section for drawing well bore fluid into the pump assembly. A shaft extends from the motor for driving the pump, a shaft coupling is inclu... | 09/20/2011 |
| 7824162 | Vacuum pump A vacuum pump includes a rotor assembly mounted on a driven shaft, and a motor for rotating a drive shaft in forward and reverse directions. A drive member on the drive shaft engages a driven member on the driven shaft. Each member has first and second impact surfac... | 11/02/2010 |
| 7775779 | Pump apparatus, systems and methods Pump apparatus, systems and methods of making and using same are disclosed. One inventive system includes a coupling member, a first shaft and a second shaft, the coupling member connecting the first shaft with the second shaft, the coupling member defining a first ... | 08/17/2010 |
| 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 |
| 7156765 | Lubricating mechanism of oil pump A rotation of an input shaft is accelerated and transmitted to a drive shaft of an oil pump through gears. The oil pump is provided with a lubricant hole and part of the lubricant discharged from a discharge side oil chamber is supplied to a first sliding face of a ... | 01/02/2007 |
| 7069986 | Portable, surface-mounted well pump A portable pump includes a rotating elliptical plate mounted on a rotating shaft, an elliptical plate follower with rollers or bearings positioned on the top and bottom surfaces of the rotating elliptical plate at a fixed distance from the axis of the supporting rot... | 07/04/2006 |
| 7040860 | Uni-directional impeller, and impeller and rotor assembly An impeller, and impeller and rotor assembly, for use with a permanent magnet motor that provide uni-directional rotation. The impeller and rotor assembly includes an interconnecting arrangement and a locking arrangement that permit continuous rotation in a first di... | 05/09/2006 |
| 7037462 | Overflow transfer furnace and control system for reduced oxide production in a casting furnace An apparatus for transferring molten metal from a melting furnace to a casting furnace is provided. A sensing and control system for the transfer of molten metal from a transfer furnace to a casting furnace is also described. The combination of the transfer apparatu... | 05/02/2006 |
| 7033145 | Centrifugal pump for electrical household appliance or the like A centrifugal pump for a household appliance includes a synchronous alternating current electrical motor having a permanent magnet rotor and a bladed impeller coupled to an end of the rotor which extends into a cavity in the hub thereof. The rotor and the hub are pr... | 04/25/2006 |
| 6994531 | High-speed fluidic device A high-speed fluidic device has a friction roller type speed-increasing mechanism, an electric motor, and a high-speed fluidic machine, wherein: the friction roller type speed-increasing mechanism includes a housing, a low-speed side member having an outer ring prov... | 02/07/2006 |
| 6916152 | Centrifugal sewage pumps with two impellers A centrifugal sewage pump with two impellers includes a motor, a first impeller housing, a second impeller housing and a transfer tube. The first impeller housing is attached on one end of the motor and the second impeller housing is attached to the other end of the... | 07/12/2005 |
| 6902696 | Overflow transfer furnace and control system for reduced oxide production in a casting furnace An apparatus for transferring molten metal from a melting furnace to a casting furnace is provided. A sensing and control system for the transfer of molten metal from a transfer furnace to a casting furnace is also described. The combination of the transfer apparatu... | 06/07/2005 |
| 6840743 | Plural fan installation for a cooling system for a motor vehicle, with a control unit, for controlling plural fan motors, mounted within one motor housing The present invention provides a fan installation for a cooling system of a motor vehicle, comprising at least two fans which respectively have an electric fan motor arranged in a separate housing and a fan wheel which can be driven by the fan motor. The fan install... | 01/11/2005 |
| 6749397 | Fluidal machine In a fluidal machine with an impeller rotating to urge a fluid radially outwardly by a centrifugal force, a vane guiding the fluid discharged from the impeller, a vane member which includes a front end of the vane facing to the impeller so that the fluid discharged ... | 06/15/2004 |
| 6716003 | Structure for an air pump An air pump is provided with a motor body having an air slot to allow air to flow from the air slot to air inlets positioned in a front sealing cap of the motor body. The air inlets are aligned with air holes in a closed housing. A shaft of the motor body extends in... | 04/06/2004 |
| 6709234 | Impeller shaft assembly system An impeller shaft assembly, coupler and molten metal pump are described, in which a coupling member is configured to be secured to a pump drive shaft and includes a socket part that is defined by a socket wall formed about and extending along an axis. The socket wal... | 03/23/2004 |
| 6632077 | Hybrid bearing arrangement for centrifugal compressor A centrifugal compressor that includes a low speed shaft connected to a drive motor and a high speed shaft containing an impeller. The high speed shaft is coupled to the low speed shaft by a gear train. The low speed shaft is supported by hydrodynamic, oi... | 10/14/2003 |
| 6602059 | Electric submersible pump assembly with tube seal section The present invention provides an electrical submersible pump assembly having a submersible pump, a submersible electrical motor drivingly connected to the pump, and a seal assembly disposed between the submersible pump and the motor. The seal assembly is... | 08/05/2003 |
| 6497559 | Molten metal submersible pump system Disclosed is a molten metal submersible pump system which includes a unitized body which acts as its own jig during assembly to precisely align the motor mount framework, the pump body, the pump base, and the pump shaft. Further disclosed is such a pump s... | 12/24/2002 |
| 6497555 | Liquid ring pump A liquid ring pump, includes a stationary housing having an interior space for accommodating at least one rotor mounted on a rotor shaft for rotation in the housing. The rotor shaft is supported by a bearing in the interior space, and the rotor is operate... | 12/24/2002 |
| 6474962 | Miniature well and irrigation pump apparatus An irrigation pump for use in irrigating small fields or supplementing larger irrigation systems can also be used for portable water supply for emergency, military, or for underdeveloped countries. The pump system is designed to be light-weight and semi-p... | 11/05/2002 |
| 6471495 | Miniature well and irrigation pump apparatus An irrigation pump for use in irrigating small fields or supplementing larger irrigation systems can also be used for portable water supply for emergency, military, or for underdeveloped countries. The pump system is designed to be light-weight and semi-p... | 10/29/2002 |
| 6468058 | Submersible concatenated system A system for pumping fluid from a well-bore that includes a pump assembly driven by a first motor module assembly via a continuous rotatable shaft. The first motor module assembly includes an induction motor having a multi-phase stator and a wound rotor. ... | 10/22/2002 |
| 6457306 | Electrical drive system for rocket engine propellant pumps A liquid propellant supply system (10) according to the invention is electrical in nature and avoids the need for a gas generator and a turbine assembly. In particular, the system (10) includes an electrical power source (12), a controller (14) and a moto... | 10/01/2002 |
| 6454010 | Well production apparatus and method A well production apparatus includes a down-hole gear pump and a transport assembly to which the gear pump is attached. The transport assembly is formed from a string of modular pipe assemblies having one or more passages for carrying production fluid fro... | 09/24/2002 |
| 6398521 | Adapter for motor and fluid pump An adapter for coupling a motor to a pump includes a collar having a first end being removably coupled to a motor housing and a second end being removably coupled to a pump housing of differing size. The collar forms an internal cavity. The drive coupler ... | 06/04/2002 |
| 6398525 | Monolithic rotor and rigid coupling A device for pumping molten metal that eliminates rotor bearing members comprises a pump having a pump chamber including a first bearing surface, and a monolithic rotor having a second bearing surface that aligns with the first bearing surface. The second... | 06/04/2002 |
| 6280138 | Vertical axis pump Since a reduction gearbox (50) is mounted onto the outer wall of the discharge elbow (30), the installation height of a vertical axis pump is reduced. A pump shaft (34) comes out the outer wall of the discharge elbow (30) and passes through a separate wal... | 08/28/2001 |
| 6179558 | Filtering pump assembly A filtering pump assembly for pumping and filtering a fluid includes a pump subassembly and a filter subassembly. The pump subassembly has an inlet portion with a first cross-sectional shape. The preferred cross-sectional shape of the inlet portion is cir... | 01/30/2001 |
| 6162125 | Motor shaft to gear pump coupling device for fluid borne noise reduction An electro-hydraulic gear pump power pack [10], including a gear pump [12] and a motor [16], are secured together to form a single assembly. The gear pump [12] has a gear drive [14] that is in rotational communication with a drive shaft [18] extending fro... | 12/19/2000 |
| 6129529 | Liquid petroleum gas submersible electric motor driven pump and drive coupling therefor A submersible electric motor driven pump includes a motor assembly having an elongated tubular motor housing, an electric motor disposed in the motor housing, and a rotary motor shaft having an output end which extends from the electric motor; and a pump ... | 10/10/2000 |
| 6106240 | Gerotor pump A gerotor pump including a ring gear and a pinion gear supported on a pump housing for rotation about parallel, laterally separated centerlines. A plurality of pump chambers defined by the teeth of the ring and pinion gears expand in an inlet half of a cr... | 08/22/2000 |
| 6095772 | Shaft coupling system A shaft coupling system (10) is used to connect one shaft (23) to another shaft (44). The system (10) is suited for use in the environment of a pump (11) having a motor assembly (12) and a disposable pump assembly (13). The shaft (23) is driven by a motor... | 08/01/2000 |
| 6093000 | Molten metal pump with monolithic rotor A device for pumping molten metal that eliminates rotor bearing members comprises a pump having a pump chamber including a first bearing surface, and a monolithic rotor having a second bearing surface that aligns with the first bearing surface. The second... | 07/25/2000 |
| 6068457 | Lobed pinion drive shaft for refrigeration compressor A refrigeration unit having a compressor includes a refrigerant gas inlet, a drive shaft, and at least one compression stage. At least one compression stage includes at least one impeller with a hub, the hub having a radially lobed bore. The drive shaft h... | 05/30/2000 |
| 6050790 | Electric waving fan with oscillating multi-direction fan vane element An electric waving fan includes a single air moving fan vane element, a motor for generating power, a transmission apparatus for converting the power to motion, and a power output assembly for moving the single fan vane element simultaneously in two direc... | 04/18/2000 |
| 6050780 | Method for driving a high speed compressor A high speed compressor (10) includes a gear box (11), two compressing units (12, 13) supported on opposite side walls of the gear box (11) and a bull gear (32) rotatably placed in the gear box (11). Each compressing unit includes a scroll (15, 16) and an... | 04/18/2000 |
| 6036451 | Shaft assemblies for lineshaft turbine pump A lineshaft turbine pump includes a packing container having a passageway longitudinally extending therethrough. Rotatably disposed within the passageway is a packing sleeve having a channel longitudinally extending between a threaded first end and an opp... | 03/14/2000 |
| 6007308 | Coupling device for a pump impeller A coupling device for coupling a rotor and an impeller of an electric pump has a coupler body 41 fixed to a shaft of the rotor and accommodated within a cavity 31 of the impeller 11. The body 41 comprises a cylindrical portion 43 and a flange 42 located a... | 12/28/1999 |
| 5960886 | Deep well pumping apparatus A fluid recovery system for producing subsurface oil and water deposits comprises a high capacity pump such as a high capacity centrifugal pump that is immersed within the deposit, a well casing that extends into the deposit from the surface, a source of ... | 10/05/1999 |
