Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 7409997 | Electric submersible pump with specialized geometry for pumping viscous crude oil A centrifugal pump has impellers for pumping low flow, high viscous materials. The impellers have high exit angles greater than 30 degrees and preferably greater than 50 degrees. The impellers and diffusers have specific geometry that varies with viscosity. The pump... | 08/12/2008 |
| 7322879 | Reprofiling device for the rails of railroads that captures waste A device for the continuous reprofiling of the rails of railroads includes at least one abrasive rail reprofiling unit (2) guided along the railroad tracks and comprising at least one abrasive disk (3) that can be pressed against a rail (1). Thi... | 01/29/2008 |
| 7287379 | Turbo compressor system for internal combustion engine comprising two serially placed turbo units with their rotation axes essentially concentric A turbocharger system for an internal combustion engine having at least one exhaust line for evacuating exhaust gases from the combustion chamber of the engine and at least one inlet line for supplying air to the combustion chamber. A high-pressure turbine interacts... | 10/30/2007 |
| 7150152 | Vibration limiter for coaxial shafts and compound turbocharger using same A compound turbocharger is provided, including at least one housing. A first turbocharger having an outer shaft is disposed within the housing, and a second turbocharger is provided having an inner shaft co-axial with and extending within the outer shaft. At least o... | 12/19/2006 |
| 7144226 | Centrifugal compressor having a flexible coupling This compressor unit comprises a motor (34) and at least one compressor (44) comprising a driven shaft (54) driven by the rotor of the motor and bladed wheels fitted on the driven shaft (54), the assembly composed of the motor and the com... | 12/05/2006 |
| 7080635 | Intake and exhaust device for multi-cylinder engine An intake and exhaust device for a multi-cylinder engine includes: a first intake and exhaust system corresponding to a first cylinder group and having an exhaust passage and an intake passage; a second intake and exhaust system corresponding to a second cylinder gr... | 07/25/2006 |
| 7059830 | Axial-flow serial fan This specification discloses a serial fan comprising a plurality of rotor vanes, one or more supports and a frame. Each of the rotor vanes comprises an inlet, an outlet, and one or more blades. Each support supports at least one of the rotor vanes so that the corres... | 06/13/2006 |
| 7048520 | Multistage sealed coolant pump A multistage sealed pump is provided for use in an X-ray tube cooling system which is substantially more efficient than pumps of known construction and which provides substantially higher pumping pressure at lower motor current than conventionally. The pump employs ... | 05/23/2006 |
| 7044716 | High-pressure multi-stage centrifugal compressor A high-pressure multi-stage centrifugal compressor is provided containing at least three compressor elements which are arranged in series as compressor stages, and at least two electric motors to drive these compressor elements. At least one compressor element forms... | 05/16/2006 |
| 7013669 | Arrangement for multi-stage heat pump assembly A gasdynamic arrangement for a multi-stage centrifugal turbomachine, such as a two-stage compressor, comprising two coaxial impellers assembled on a common shaft with axial intake ports and radial peripheral discharge zones, the intake ports of the two impellers pre... | 03/21/2006 |
| 6997686 | Motor driven two-stage centrifugal air-conditioning compressor A two-stage compressor for generating necessary pressure differential for air-conditioning applications with air-cooled, water-cooled and evaporative-cooled condensing systems using low-pressure refrigerant, such as R134a, is provided. A rotating assembly is mounted... | 02/14/2006 |
| 6964559 | Two shaft vacuum pump with cantilevered rotors A vacuum pump (1) comprising a pump chamber casing (5) accommodating two co-operating rotors (2, 3) which are respectively arranged on a shaft (8, 9). A bearing/gear chamber (6) is disposed adjacent to the pump chamber casing (5... | 11/15/2005 |
| 6960059 | Blower with a plurality of impellers A blower having a plurality of impellers is described. The blower has two driving devices and two impellers respectively mounted on the two driving devices. The blades of the two impellers, which are radially or axially disposed, are overlapped so as to enhance the ... | 11/01/2005 |
| 6907746 | Multistage compression type rotary compressor and cooling device A multi-stage compression type rotary compressor, having a driving element and a first and a second rotary compression element that are driven by the driving element in a sealed container, is provided. The refrigerant compressed by the first rotary compression eleme... | 06/21/2005 |
| 6854517 | Electric submersible pump with specialized geometry for pumping viscous crude oil A centrifugal pump has impellers for pumping low flow, high viscous materials. The impellers have high exit angles greater than 30 degrees and preferably greater than 50 degrees. The impellers and diffusers have specific geometry that varies with viscosity. The pump... | 02/15/2005 |
| 6786701 | High-pressure misting fan A high pressure misting fan (10) configured for injecting a fluid (F) into a generated stream of air to produce a cooling vapor impregnated airstream (V) is disclosed. The fan (10) broadly includes a rotatable propeller (12), a motor (14)... | 09/07/2004 |
| 6698929 | Turbo compressor A turbo compressor is provided which includes a motor having a stator with a rotor which rotates in the inside of the stator. A rotation shaft is press-fitted into the rotor and is integrally rotated with the rotor. A bearing is provided for supporting th... | 03/02/2004 |
| 6450772 | Compact molecular drag vacuum pump A molecular drag vacuum pump configured for pumping a gas stream from an inlet to an outlet, the pump including a high-speed spinning disk having a channel formed in its edge, disposed within a housing. A passageway is formed on the inside of the housing ... | 09/17/2002 |
| 6422838 | Two-stage, permanent-magnet, integral disk-motor pump A two-stage, permanent-magnet, integral disk-motor centrifugal pump, has a housing having first and second suction ports and first and second discharge ports, the first discharge port being connected to the second suction port. A first impeller is rotatab... | 07/23/2002 |
| 6305911 | Device and process intended for two-phase compression of a gas soluble in a solvent The invention is a two-phase compression device and a process which provides energy to fluids including an essentially liquid fluid and an essentially gaseous fluid or a fluid having a liquid phase and a gas phase, at least one of the fluids or phases bei... | 10/23/2001 |
| 6210126 | Device and process intended for two-phase compression of a gas soluble in a solvent The invention is a two-phase compression device and a process which provides energy to fluids including an essentially liquid fluid and an essentially gaseous fluid or a fluid having a liquid phase and a gas phase, at least one of the fluids or phases bei... | 04/03/2001 |
| 5704768 | Motor pump family of centrifugal pumps A motor pump group has a plurality of centrifugal pumps of the same nominal port diameter including a plurality of impellers having stepwise greater outside diameters for stepwise higher pump heads, and a plurality of respective motors for actuating the p... | 01/06/1998 |
| 5676528 | Motor pump family with single stage and multiple stage impellers A motor pump group has a plurality of centrifugal pumps of the same nominal port diameter including a plurality of impellers having stepwise greater outside diameters for stepwise higher pump heads, and a plurality of respective motors for actuating the p... | 10/14/1997 |
| 5478210 | Multi-stage vacuum pump A vacuum pump includes a plurality of rotors accommodated in a housing, a plurality of bearings for supporting the shafts of the rotors, respectively, a fluid-suction opening and a fluid-discharge opening formed in the housing, and a motor for driving at ... | 12/26/1995 |
| 5084189 | Method and apparatus for separating fluids having different specific gravities An axial flow-type pump for separating immiscible fluids having different specific gravities and a discharge manifold fluid connected to the fluid pump for drawing of the fluid having the heavier specific gravity. The fluid pump employs a rotatable impell... | 01/28/1992 |
| 4969803 | Compressor unit The invention includes a compressor unit with a connected drive by a high-frequency motor for compressing gases and which is suitable for great ocean depths and for natural gas conveyance from the ocean floor where the low temperature obtaining in the wat... | 11/13/1990 |
| 4878813 | Vacuum pump A vacuum pump producing ultra high vacua has a housing containing a first set of rotor blades provided around a first rotor for producing ultra high vacua and a second set of rotor blades provided around a second rotor for producing low to high vacua wher... | 11/07/1989 |
| 4770609 | Two-stage vacuum pump apparatus and method of operating the same A two-stage vacuum pump apparatus has a first stage of vacuum pump constituted by a screw-type vacuum pump and a second stage vacuum pump constituted by an oil-sealed rotary vacuum pump operative to maintain the back pressure of the first stage vacuum pum... | 09/13/1988 |
| 4678405 | Low net positive suction head pumps A pump is disclosed for pumping a volatile fluid having a given vapor pressure. The pump of this invention comprises a pump housing comprising an inlet for introducing the liquid at a relatively low static pressure level into the pump housing and an outle... | 07/07/1987 |
| 4629399 | Aggregate for delivering fuel from a fuel supply tank to an internal combustion engine of a motor vehicle An aggregate for delivering fuel from a fuel supply tank to an internal combustion engine of a motor vehicle comprises an electric drive motor, on the output shaft of which an inner rotor, having teeth on the peripheral surface, is positioned, and a ring-... | 12/16/1986 |
| 4601643 | Rotary compressor machines A rotary compressor machine comprises at least one rotary compressor member, gearing for driving the member(s), a drive shaft for coupling to a drive motor, and an auxiliary shaft extending axially parallel to the rotary compressor axis and connected coax... | 07/22/1986 |
| 4588358 | Rotary vane evacuating pump A rotary vane evacuating pump having two series connected pumping stages is disclosed. Each pumping stage is provided as an exchangeable unit and has a housing which is detachably connected to one face of an interface flange. The housings of the pumping s... | 05/13/1986 |
| 4563132 | Compound turbocharger system for an internal combustion engine A compound turbocharger system for an engine/compressor unit is disclosed including a pair of conventional turbochargers including turbine components connected in series to convert exhaust gas energy from the engine cylinders into mechanical energy for dr... | 01/07/1986 |
| 4496291 | Compound turbocharger system for an internal combustion engine A compound turbocharger system (2, 2', 112) for an engine/compressor unit (4, 4') is disclosed including a pair of conventional turbochargers (14, 16, 111, 113) including turbine components (18, 22, 114, 116) connected in series to convert exhaust gas ene... | 01/29/1985 |
| 4292011 | Turbo pump gas compressor An improved power fluid driven turbo pump is provided for pumping oil wells of the type having, from time-to-time, significant quantities of gas included in the oil so that wide variations in the density of the medium to be pumped may be expected to be en... | 09/29/1981 |
| 4225288 | Pump set comprising a liquid ring vacuum pump preceeded by a compressor A pump set comprising a compressor followed by a liquid ring vacuum pump with the two pumps matched to each other so that a relatively small liquid ring vacuum pump can draw and maintain vacuum under 40 Torr.... | 09/30/1980 |
| 4195969 | Vacuum cleaner A vacuum cleaning apparatus is disclosed having a suction head adapted for use on a collection tank. The suction head includes a base, at least one blower-motor unit mounted on the base and having a suction intake and an exhaust outlet. The exhaust outlet... | 04/01/1980 |
| 4155684 | Two-stage exhaust-gas turbocharger An exhaust-gas turbocharger includes a low pressure stage having a compressor wheel and a turbine wheel mounted on one shaft and a high pressure stage having a compressor wheel and a turbine wheel mounted on another shaft. The two shafts are arranged coax... | 05/22/1979 |
| 4147473 | Method of regulating multistage axial compressor output and an axial compressor for carrying same into effect A method of regulating the output of a multistage axial compressor having two coaxial rotors in series. The regulation of the compressor output is effected by varying the head of the medium to be compressed, the variation of the head of the medium being e... | 04/03/1979 |
| 3985094 | Series waterjet propulsion pumps for marine vehicles A waterjet propulsion system having at least two pumps in series so that low from a hull or other intake is directed through a first waterjet propulsion pump; and then via a two-position diverter valve, either out to a thrust nozzle, or to and through a ... | 10/12/1976 |
