Bizarre Patents
A simulation environment for the sport of boxing utilizing a robotic machine interface system which carries a person
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 |
| 7686573 | Vertically-oriented centrifugal pump An apparatus for elevating a fluid includes: a pumping member rotatable about a vertical axis, the pumping member having at least one ramped path, the ramped path having a lowermost portion insertable below the surface of a fluid to be elevated, and an uppermost por... | 03/30/2010 |
| 7371058 | Oil feeding propeller of scroll compressor An oil feeding propeller of a scroll compressor for preventing deterioration of oil feeding generated when a rotation shaft is rotated in reverse is disclosed. The propeller is tightly fitted into the lower side of the oil passage of the rotation shaft, sucks oil in... | 05/13/2008 |
| 7326028 | High flow/dual inducer/high efficiency impeller for liquid applications including molten metal A centrifugal pump has a pump base with inlet inducer openings that receive molten metal into an impeller chamber. An impeller structure in the impeller chamber passes the metal in a radial direction through an outlet inducer opening into a volute passage for discha... | 02/05/2008 |
| 7244096 | Curved blade oil scoop Disclosed herein is a rotating radial scoop used to move fluid from a larger radius to a smaller radius, comprising a blade at least partially circumscribing a central axis from an outer radius of the scoop to an capture radius of the scoop, wherein the inner surfac... | 07/17/2007 |
| 7244095 | Dual pressure Euler steam turbine A turbine, including a rotor on a shaft, and having in combination stationary nozzles discharging steam at a first pressure or pressures thereby producing impulse forces on the rotor; internal passages in the rotor producing a pressure head increase in the discharge... | 07/17/2007 |
| 7210561 | Lubricating device of reciprocating compressor A lubricating device of a reciprocating compressor includes a pumping unit for pumping lubrication oil contained in a lower portion of a case and a front frame having a supply hole which supplies the lubrication oil pumped from the pumping unit to a sliding part wit... | 05/01/2007 |
| 7189052 | Centrifugal compressor having rotatable compressor case insert A centrifugal compressor is disclosed as including a case, a compressor chamber, and an impeller in the compressor chamber for compressing fluid from an inlet opening and forcing compressed fluid through an outlet opening. Moreover, the compressor includes an insert... | 03/13/2007 |
| 7121433 | Portable dispensing pump A lightweight portable battery powered pump for moving fluids from a reservoir to a variety of end applications is disclosed. A simple and easy to manufacture centrifugal pump impeller and housing are shown. ... | 10/17/2006 |
| 7100743 | Crank shaft in dual capacity compressor A crankshaft in a dual capacity compressor is disclosed, which causes oil contained in a lower portion of the compressor to flow up to an upper portion thereof with respect to all the rotational directions of a motor. A crank shaft (100) includes a driving sh... | 09/05/2006 |
| 7045983 | System for controlling motor speed by altering magnetic field of the motor The present invention provides a system for controlling the speed of a motor by altering the magnetic field of the motor. The system includes field modification module, and a motor having field windings and a rotor. The field windings are configured to receive a dri... | 05/16/2006 |
| 6709227 | Pitot tube insert A pitot tube inlet for the pitot tube of a centrifugal pump is configured to improve pump efficiencies when processing fluids that have a solids content the type or character of which causes the solids to accumulate along the inner peripheral surface of the rotor of... | 03/23/2004 |
| 6702067 | Piston compressor, particularly hermetically enclosed refrigerant compressor The invention relates to a piston compressor, particularly a hermetically enclosed refrigerant compressor, with a crankshaft, which is axially supported in an axial bearing in relation to a bearing housing, and with an oil pump arrangement. In a piston co... | 03/09/2004 |
| 6684979 | Hermetic motor-driven compressor A hermetic motor-driven compressor is capable of decreasing both the resonance sound due to an oil feed pipe and the resonance sound due to a crankshaft generated when the oil feed pipe is rotated while being dipped in the refrigerating machine oil. Withi... | 02/03/2004 |
| 6666301 | Oil supply apparatus for hermetic compressor An oil supply apparatus for a hermetic compressor includes: a crankshaft coupled with a rotor of a motor so as to revolve together and having an oil flow path inside, a sleeve connected to a lower part of the crankshaft so as to revolve together with the ... | 12/23/2003 |
| 6561754 | Inlet structure for pump installations An open or covered inlet structure having pumps arranged therein. To be able to reduce excavation and concreting works, the foundations of the inlet structure are positioned at a substantially higher level. Only at the point at which the pumps (2) and the... | 05/13/2003 |
| 6527086 | Oil supply device for closed reciprocating compressor A closed reciprocating compressor includes a closed container forming an oil storage portion at a lower end thereof. A power generating device disposed in the container reciprocates a piston to compress air. An eccentric shaft is fixed to a lower end of t... | 03/04/2003 |
| 6364059 | Lubricating system, preferably for refrigerating machinery and comprising a pitot tube pump A lubricating system, preferably for smaller refrigerating machinery of piston compressor type (1, 2, 3) having a substantially vertically extending drive shaft (4). A disc-shaped member (11) is arranged adjacent to the lower part of the drive shaft (4) t... | 04/02/2002 |
| 6168376 | Rotary pump with ventilated chamber Centrifugal pump with a pump chamber (18) housing a radial impeller (20) and aspiration port arranged coaxially with the radial impeller, and at least one ventilating conduit (26) that leads from the inner radial area of the pump chamber to the outside, w... | 01/02/2001 |
| 6149384 | Centrifugal pump A centrifugal pump has a casing, an overhung-mounted rotor in the casing having a feed chamber, which centrifugally accelerates the liquid flowing centrally to it, and a discharge chamber positioned axially behind it and connected to the feed chamber in t... | 11/21/2000 |
| 6090299 | Three-phase rotary separator The method of operating rotating separator apparatus, to which fluid, including gas and liquids is supplied in a fluid jet via a nozzle, which includes separating the liquids from the gas in the stream, at a first zone within the rotating apparatus, and s... | 07/18/2000 |
| 5997243 | Pitot tube inlet insert An insert is provided for attachment to the inlet or nose of a pitot tube to withstand the wear and damage imposed on the inlet of the pitot tube by high velocity and high pressure fluid moving through the rotary casing and into the pitot tube. The insert... | 12/07/1999 |
| 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 |
| 5951242 | Paper machine having a high pressure fluid slitter with overflow compensation A paper machine has a high pressure liquid pump for use with a liquid slitter for slitting a fiber material web. The high pressure liquid pump includes a pump shell having an axis of rotation and an annular smooth inwardly facing surface. The inwardly fac... | 09/14/1999 |
| 5755961 | Aquarium system An aquarium system includes an inlet reservoir, an aquarium tank defining a container for water in fluid communication with the inlet reservoir to receive water displaced from the inlet reservoir, an outlet reservoir in fluid communication with the tank f... | 05/26/1998 |
| 5750040 | Three-phase rotary separator The method of operating rotating separator apparatus, to which fluid, including gas and liquids is supplied in a fluid jet at via a nozzle, which includes separating the liquids from the gas in the stream, at a first zone within the rotating apparatus, an... | 05/12/1998 |
| 5685691 | Movable inlet gas barrier for a free surface liquid scoop A rotary turbine apparatus which includes a separator having a rotating cylindrical wall receiving a stream of liquid and gas for separating gas from liquid, the liquid collecting in a rotating ring on the wall, and comprising a scoop having an inlet imme... | 11/11/1997 |
| 5525034 | Hybrid two-phase turbine In a rotary turbine having inlets for mixtures of gas and liquid, and a rotary shaft, the combination comprising a separator to receive the mixture of gas and liquid, and to separate the mixture into a stream of gas and a stream of liquid; first structure... | 06/11/1996 |
| 5509791 | Variable delivery pump for molten metal A pump for use in a bath of reactive molten metal such as zinc has a graphite rotor, driven at constant speed, and capable of pumping molten metal at selective rates from the bath. The pump includes an internal delivery flow path and protected drive shaft... | 04/23/1996 |
| 5385446 | Hybrid two-phase turbine A rotary separator turbine having inlet structure for mixtures of gas and liquid, rotary shaft structure comprising separator structure to receive the mixture of gas and liquid and to separate the mixture into a stream of gas and at a stream of liquid; fi... | 01/31/1995 |
| 5338115 | Mixing device for materials with large density differences An auger-tube pump mixing device for mixing materials with large density differences while maintaining low stirring RPM and low power consumption. The mixing device minimizes the formation of vortexes and minimizes the incorporation of small bubbles in th... | 08/16/1994 |
| 5261784 | Variable pressure pitot pump A pump (P) including a stationary pump housing (1) and a rotating pump housing (10, 10a) mounted on the stationary pump housing (1) and defining a fluid receiving chamber (11). A pitot probe (5) freely rotatably mounted in the stationary pump housing (1) ... | 11/16/1993 |
| 5234320 | Centrifugal suction pump A centrifugal suction pump includes a vertically disposed support tube having upper and lower ends, a liquid check valve on the lower end of the support tube, and a hollow rotatable hub mounted on the upper end of the support tube. A number of horizontall... | 08/10/1993 |
| 5145314 | Low drag pitot pump and method of operating same A method of operating a pitot pump that pressurizes a first fluid of a first viscosity and first density wherein the pump includes a rotatable housing and a stationary probe disposed within the housing includes the steps of providing a source of a second ... | 09/08/1992 |
| 5135353 | Variable pressure pitot pump with reduced heating of pumped fluid A variable pressure and variable flow rate pump in accordance with the invention includes a stationary pump housing (1), a rotating pump housing (10), rotatably mounted with respect to the stationary pump housing including a fluid receiving chamber (12) f... | 08/04/1992 |
| 5098255 | VAriable geometry pitot pump Prior centrifugal pitot pumps have suffered from reduced efficiency and inability to control flow parameters during operation. In order to overcome these problems, a pitot pump for pressurizing a fluid includes a rotatable housing having a housing inlet t... | 03/24/1992 |
| 5007798 | Centrifugal pump A centrifugal pump for accommodating entrained gas and vapor at low absolute suction pressures includes an impeller with a central inlet chamber. The impeller has a peripheral wall which is concentric with the impeller's axis; and, at least one passage ex... | 04/16/1991 |
| 4820134 | Loop pump A loop pump (1) for pumping liquid, i.e. a pump comprising a pipe (3) or the like embodied in a plurality of turns/loops. The pipe is rotated by a drive source to introduce alternately air and liquid into an inlet (4) and to pump the liquid to a drawing p... | 04/11/1989 |
| 4818177 | Centrifugal pump with integral suction valve An improved centrifugal pump is provided wherein a suction valve is integrally mounted within the impeller housing. The valve is shifted to the open position by hydraulic action and is preloaded by a spring to the closed position. Mechanical linkage is al... | 04/04/1989 |
| 4792275 | Pump construction A pump is provided within a vortex generator having a plurality of equally spaced blades which rotate in a pump casing to form a nucleus of fluid in the shape of an ellipsoid having an upper tapered end and a lower tapered end with a thicker central secti... | 12/20/1988 |
| 4786230 | Dual volute molten metal pump and selective outlet discriminating means This invention relates to improvements in molten metal pumps for the transfer of principally molten aluminum and zinc from specialized molten and holding furnaces through fluidics control means downstream of the pump to control the direction of flow of mo... | 11/22/1988 |
