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 |
| 7284495 | Shaftless radial vane rotary device and a marine propulsion system using the device A radial vane fluid motor or pump has an open ended tubular rotor having a cylindrical outer surface rotatably mounted in a tubular stator having its inner surface contoured to provide successive portions of increased and decreased spacing relative to the rotor body... | 10/23/2007 |
| 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 |
| 7165933 | Screw pump for transporting emulsions susceptible to mechanical handling A screw pump for transporting a viscous product is described comprising a cylindrical housing connected to a removable bottom piece in one end and a removable cap in the opposite end, a rotor having one or more screw blades connected to a driving motor, an inlet and... | 01/23/2007 |
| 7018167 | Fluid machinery An object is to improve the durability of wings and suppress vibration of the wings and generation of noise. A fluid machine includes a rotatably supported wing support, and a plurality of wings (21) formed on the wing support at a plurality of circumferentia... | 03/28/2006 |
| 7018170 | Ribbon drive pumping apparatus and method with added fluid A ribbon drive pumping apparatus and method for substantially incompressible fluids, such as 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 f... | 03/28/2006 |
| 7001229 | Water vehicle propeller In this specification regarding water vehicle propellers, the gist of the technical disclosure resides in the construction of a propeller having elongated blades which extend in a helical path and longitudinally of the hull of a water vehicle in an unbroken length, ... | 02/21/2006 |
| 6951445 | Apparatus for use in slurry pumps Apparatus for use with a slurry pump, including a stationary part which includes a processing chamber having an inner side wall and a central axis, an inlet and an outlet to and from the processing chamber and a rotatable part at least partially disposed within the ... | 10/04/2005 |
| 6619910 | Froth pumps An impeller suitable for use in a centrifugal pump, the pump including a pump chamber and a pump inlet. The impeller includes a main body portion which includes a plurality of primary pumping blades or vanes and one or more flow inducing blades or vanes w... | 09/16/2003 |
| 6474939 | Cell for pumping a multiphase effluent and pump comprising at least one of the cells A cell for pumping a multiphase effluent includes two rotary parts (4-5), the first one (4) having a hydraulic wheel designed for transmitting kinetic energy to each of the multiphase effluent phases entering cell (1a-1b), and the second one (5), followin... | 11/05/2002 |
| 6312216 | Multiphase turbo machine for improved phase mixing and associated method The invention is a device and method which varies the pressure of a multiphase fluid comprising at least one liquid phase and at least one gaseous phase. The device comprises a housing, a hub, a rotating shaft, and at least two blades defining at least on... | 11/06/2001 |
| 5575615 | Multiphase fluid treatment Apparatus for the treatment of a multiphase fluid, comprises a pretreatment stage (60) upstream of a treatment stage, the pretreatment stage being arranged to cause an incoming flow of multiphase fluid to concentrate fluids of greater and lesser specific ... | 11/19/1996 |
| 5549451 | Impelling apparatus A pumping device is provided having a housing comprised of an inlet housing (70) and a discharge housing (98). The inlet housing (70) contains an impeller device (80) that is comprised of a conical structure (82) rotatable about a rotational axis (86). Th... | 08/27/1996 |
| 5501574 | Blood pump A dynamic blood pump includes a rotating core member and rotating ring portion effective to pre-spin blood before the blood enteres helical pumping channels of the pump. The blood is pumped and further rotated as it moves axially along the helical channel... | 03/26/1996 |
| 5368438 | Blood pump A dynamic blood pump includes a rotating core member and rotating ring portion effective to pre-spin blood before the blood enteres helical pumping channels of the pump. The blood is pumped and further rotated as it moves axially along the helical channel... | 11/29/1994 |
| 5332355 | Impelling apparatus This invention relates to an impelling device having a suction casing having an axially located intake port, and providing a conically shaped suction cavity, and an impeller located within the conically shaped suction cavity having a conically shaped impe... | 07/26/1994 |
| 5290145 | Multiple stage drag and dynamic pump A multiple stage drag and dynamic pump is provided for pumping fluid. The pump comprises a housing and a shaft positioned in the housing, the shaft rotating about the longitudinal axis of the housing. A rotor assembly has a plurality of pump stages mounte... | 03/01/1994 |
| 5277542 | Turbine with spiral partitions on the casing and rotor thereof With a turbine of the present invention, a preferably spiral partition is formed upright on the outer periphery of a rotor carried rotatably in a casing. A large number of blades are mounted between turns of the partition at a predetermined interval on th... | 01/11/1994 |
| 5186602 | Turbine and turbocharger using the same With a turbine of the present invention, a preferably spiral partition is formed upright on the outer periphery of a rotor carried rotatably in a casing. A large number of blades are mounted between turns of the partition at a predetermined interval on th... | 02/16/1993 |
| 5139391 | Rotary machine with non-positive displacement usable as a pump, compressor, propulsor, generator or drive turbine A rotary machine, having non-positive, displacement, which can be used as a pump, compressor, generator or drive turbine wherein the rotor is form by a particular combination of paddles and blades which improves fluid flow through the rotary machine. The ... | 08/18/1992 |
| 5112188 | Multiple stage drag and dynamic turbine downhole motor A multistage turbine is provided for driving a downhole motor, which is driven by the flow of a fluid therethrough. The turbine comprises a housing and a shaft positioned in the housing, the shaft rotating about the longitudinal axis thereof. A plurality ... | 05/12/1992 |
| 5102294 | Screw pump A screw pump for feeding highly viscous material such as mixed concrete and the like. Plural projections engage the helical screw of the screw pumps to facilitating removal of the material such as gravel caught in the screw pump. Further for preventing ex... | 04/07/1992 |
| 5045246 | Suction device A novel turbine is described which consists of a disc or a shaft, to the upper and lower sides of which blades are attached, the blades on the upper side being at least three times larger than those on the underside. The combination of such a turbine with... | 09/03/1991 |
| 4787826 | Pump, particularly for highly viscous materials A pump, particularly, for pasteous masses, includes a rotatable outer wheel provided with a plurality of inner teeth, a pinion rotatable inside the outer wheel eccentrically thereto and having a plurality of outer teeth, the outer wheel and the pinion for... | 11/29/1988 |
| 4772177 | Screw pump This invention relates to a screw pump for feeding mixed concrete and the like, sticky material such as adhesive fluid without bitting and clogging and feeding them continuously and effectively. For preventing the bitting, a bearing is provided at the inl... | 09/20/1988 |
| 4668159 | Compressed rotative motor A compressed air rotary motor includes high and low pressure rotors having peripheral helicoidal threads. The rotors are sandwiched between a circular plate and end wall while an intermediate wall separates the two rotors. Fluid passageways in the plate a... | 05/26/1987 |
| 4568253 | Horizontal shaft oil pump A horizontal shaft oil pump is provided for use in a compressor comprising an outer housing having an inlet, an outlet, an oil sump, and a crankcase mounted therein. The crankcase has a generally vertically disposed passageway therein in communication wit... | 02/04/1986 |
| 4558985 | Pump with screw conveyors on each end An annular nonreturn valve is provided in a pump with a screw conveyor mounted at each end. This nonreturn valve seals the outlet end of the pump. It also makes it possible for the conveyed material to be discharged without deflection in the slug area. Th... | 12/17/1985 |
| 4426190 | Vane pump The pump comprises a housing (1) in which are installed with a radial clearance an axial-flow suction wheel (5) and an axial-flow impeller wheel (6), which wheels are mounted on a common drive shaft (4) one after the other in the direction of flow. The in... | 01/17/1984 |
| 4395130 | Interconnected pumping mechanism A novel dual or more interconnected pumping mechanisms pump is provided herein. It comprises a first pumping mechanism within a casing. A first pumping mechanism is provided within the casing, the first pumping mechanism having an operating shaft within t... | 07/26/1983 |
| 4375937 | Roto-dynamic pump with a backflow recirculator A roto-dynamic pump having recirculating means for preventing pump cavitation surging at low flow rates and at moderate to low values of net positive suction head.... | 03/08/1983 |
| 4375938 | Roto-dynamic pump with a diffusion back flow recirculator A roto-dynamic pump having recirculating means for preventing pump cavitation surging at low flow rates and at moderate to low values of net positive suction head.... | 03/08/1983 |
| 4365932 | Pumping device for diphasic fluids This device relates to a pump for diphasic fluids and comprises an impeller having a hub which carries blades of a special design. The intersection of the outer surface of each blade with a cylindrical surface coaxial with the hub is a line whose angle of... | 12/28/1982 |
| 4343394 | Apparatus for handling fluent material Apparatus for pumping or conveying fluent material such as grain, sand, concrete, etc. is disclosed. The apparatus comprises a tube having an inlet at one end and an outlet spaced from the inlet and a pair of helical blades of opposite pitch mounted insid... | 08/10/1982 |
| 4285631 | Radial flow centrifugal impeller A radial flow centrifugal impeller comprising an even number of re-heat flow ports, a main engine flow port, and a drive shaft having a helical impeller arrangement provided on its circumference and impeller blades mounted on the circumference of the heli... | 08/25/1981 |
| 4275988 | Axial or worm-type centrifugal impeller pump The pump of the present invention has a housing which accommodates an axial impeller set on the pump drive shaft. The impeller has a hub which carries a number of the helical impeller blades held in position thereto and defining a plurality of blade chann... | 06/30/1981 |
| 4142839 | Centrifugal pump for high V/L performance The centrifugal pump comprises a unique combination of a centrifugal impeller, inducer and jet pump having the capability of handling incoming fluids with a minimum V/L ratio of 1.0. The motive flow for the jet nozzle is provided by high pressure fluid di... | 03/06/1979 |
