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 |
| 8105051 | Vacuum pump A method of inhibiting combustion within a vacuum pump is provided. The method steps include monitoring and composition of a fluid within the pump and supplying purge gas to the pump to inhibit the onset of a combustion of the fluid. There is also provided a pumping... | 01/31/2012 |
| 7350508 | Advance arrangements An advance arrangement for use in controlling timing of fuel delivery by a fuel pump for use in an engine comprises an advance piston (12) which is slidable within a first bore (14) and which cooperates, in use, with a cam arrangement of a fuel pump to... | 04/01/2008 |
| 7331592 | Compressed air processing apparatus for compressed air systems of motor vehicles A compressed air processing apparatus includes a pressure controller, an air dryer, a multi-circuit protection valve and an electronic control unit. A switching valve is designed and arranged to supply compressed air to an air suspension system and to deaerate the a... | 02/19/2008 |
| 7332132 | Stripping apparatus and process An apparatus and process for stripping gases from solids comprises a structured packing in a stripping section of a vessel. The structured packing comprises a plurality of corrugated ribbons with each corrugated ribbon having at least two faces angular to each other... | 02/19/2008 |
| 7318594 | Active roll stabilization system An active roll stabilization system of a vehicle having an axle with at least two wheels, wherein the axle is provided with a roll stabilizer that is actuated by means of a hydraulic device. The hydraulic device is actuated and controlled by at least one pressure co... | 01/15/2008 |
| 7289920 | Method and apparatus for capture of grid characteristics corresponding to fluctuation events The techniques described herein allow a wind turbine generator system to automatically capture voltage waveform data corresponding to a voltage disturbance event. Data corresponding to a period preceding the voltage disturbance event, during the event and a period o... | 10/30/2007 |
| 7270145 | unloading/venting valve having integrated therewith a high-pressure protection valve The invention relates to valves for air compressors, and more particularly, to an unloading/venting valve having integrated therewith a high-pressure protection valve where a pressure reducing valve has a discharge port in communication with the air system and a ven... | 09/18/2007 |
| 7246862 | Compressed air treatment device that is designed to be installed in an industrial vehicle A compressed air treatment device is designed to be installed in an industrial vehicle consisting of a motor vehicle that can pull a trailer. The device comprises a set of electropneumatic components that are controlled by an electronic command/control unit which is... | 07/24/2007 |
| 7231887 | Milking installation A milking installation comprises a compressed air system with a compressed air line, a pneumatically controllable cylinder and a compressed air pump for supplying compressed air for the cylinder. The compressed air system comprises a dew point sensor for measuring t... | 06/19/2007 |
| 7199481 | Wave energy conversion system A wave energy conversion system converts wave energy within a wave medium into electrical energy. The wave energy conversion system includes a base substantially connected to a wave-medium floor, a tidal platform connected to said base and a tidal float connected to... | 04/03/2007 |
| 7174988 | Power steering system A power steering system includes a reversible-type oil pump supplying hydraulic fluid to first and second pressure chambers of a hydraulic power cylinder through first and second passages and having first and second discharge ports, and a branch passage conveying pa... | 02/13/2007 |
| 7165947 | Screw compressor capable of manually adjusting both internal volume ratio and capacity and combined screw compressor unit accommodating variation in suction or discharge pressure A screw compressor is equipped with a manually operated internal volume ratio adjusting slide valve and capacity adjusting slide valve. The compressor is simple in construction, can be produced with low cost, can accommodate decrease in suction pressure, for example... | 01/23/2007 |
| 7153109 | Variable capacity rotary compressor A variable capacity rotary compressor includes a hermetic casing, a housing installed in the hermetic casing to define therein first and second compression chambers having different capacities, and a compressing unit placed in the first and second compression chambe... | 12/26/2006 |
| 7094019 | System and method of surge limit control for turbo compressors A system and method of surge limit control for turbo compressors including a turbo compressor having an inlet and an outlet, an anti-surge valve, a variable speed drive to operate the compressor, a rotational speed transmitter, an inlet temperature transmitter, an i... | 08/22/2006 |
| 7076963 | Two-stage compressor for an automotive air conditioner, which can be driven by a vehicle running engine and an electric motor different therefrom A compressor is used in an automotive air conditioner to compress a refrigerant gas. The compressor includes a first compression mechanism driven by an automobile engine and a second compression mechanism driven by an electric motor. The first and the second compres... | 07/18/2006 |
| 7062366 | Method of controlling a compressor driven by the engine of a vehicle The invention relates to a method of controlling a compressor which is driven by the engine of a vehicle and which supplies at least one compressed air tank. The compressor is activated or de-activated according to a comparison which is made between the value of the... | 06/13/2006 |
| 7048000 | Pressure reducing valve A pressure reducing valve includes a housing having a passage therein, a valve body disposed within the passage, and a piston slideably disposed within the passage. The valve body includes a wall arranged transverse to the passage and dividing the passage into an in... | 05/23/2006 |
| 7011183 | Suction oil injection for rotary compressor An apparatus and system for immediately lubricating a compressor within a compressor system using a suction oil line apparatus. The compressor system comprises a compressor, a power source for operating the compressor, a tank capable of storing oil therein, a conven... | 03/14/2006 |
| 7011069 | Oil supply system for engine An oil supply system for an engine includes a pump body provided with a first outlet port and a second outlet port. The oil supply system further includes a hydraulic-oil-delivery passage, a first oil passage, a second oil passage and a return hydraulic passage. The... | 03/14/2006 |
| 6963802 | Method of coordinating and stabilizing the delivery of wind generated energy The invention relates to a method of coordinating and stabilizing the delivery of wind generated power, such as to a power grid, so as to avoid sudden surges and spikes, despite wind speed fluctuations and oscillations. The method preferably uses a plurality of wind... | 11/08/2005 |
| 6932583 | Multiple stage pump with multiple external control valves A multiple stage pump having valves downstream from each respective pump in a same line thereof. The respective lines then merge into a common line. The multiple stage pump prevents pressure variations. The multiple stage pump includes a first pump in a first stage ... | 08/23/2005 |
| 6927503 | Method and apparatus for using wind turbines to generate and supply uninterrupted power to locations remote from the power grid The present invention relates to a wind energy generating and storing system comprising methods and apparatuses for providing energy dedicated for immediate use and energy storage, to provide electrical power on an uninterrupted and continous basis, to locations rem... | 08/09/2005 |
| 6881040 | Multi-stage screw compressor unit accommodating high suction pressure and pressure fluctuations and method of operation thereof A multi-stage screw compressor unit and method of operation thereof are provided, which enable operation with high efficiency always even when suction or discharge pressure fluctuates widely, the compressor unit comprising a combination of a compression stage provid... | 04/19/2005 |
| 6659729 | Screw compressor equipment for accommodating low compression ratio and pressure variation and the operation method thereof The invention provides a method of operating a screw compressor equipment without reducing the efficiency, in which a screw compressor 1 of which the internal volume ratio is variable by means of an internal volume ratio control valve is driven by a drivi... | 12/09/2003 |
| 6551068 | Process for protecting a turbocompressor from operating in the unstable working range To protect a turbocompressor (3) with a downstream process from operation in the unstable working range, a machine controller is used, which optionally contains--besides a surge limit controller (15)--an intake pressure controller (11), an end pressure co... | 04/22/2003 |
| 6435847 | Turbo-molecular pump In a turbo-molecular pump, a rotor is supported by a magnetic bearing (3) in a non-contact mode. A pump control section (2) has a magnetic bearing control device (8) with a digital signal operating processor or DSP (7) which is programmable by a software ... | 08/20/2002 |
| 6293766 | Process for operating a compressor with a downstream user, and unit operating according to this process A compressor, especially for compressing the fuel gas for a gas turbine, is controlled by a throttling member (9) arranged on the intake side of the compressor as a function of the gas consumption of the user (7) such that the flow cross section is reduce... | 09/25/2001 |
| 6273686 | Apparatus and method for controlling a rated system pressure The rated system pressure in a pressure control system is adjusted through a pressure relief valve (2). In addition to the pressure relief valve (2), the system includes a check valve (4), a pressure sensor (3), a position switch (10), a first pressure ad... | 08/14/2001 |
| 6244833 | Device to increase slurry density Disclosed is a device and method to increase density of slurry transported by slurry pumping systems. A connection is made to the existing slurry pipeline so that a portion of slurry is drawn into the device. Multiple settling chambers are filled and pres... | 06/12/2001 |
| 6217288 | Method and apparatus for limiting a critical variable of a group of compressors or an individual compressor This invention discloses a method for limiting a critical variable (such as, discharge pressure or suction pressure or pressure ratio) of either a compressor station or an individual compressor when these machines are subjected to large, fast disturbances... | 04/17/2001 |
| 6089831 | Compressed air supply system for vehicle compressed air installation and process for controlling said system An air compressor, from whose outlet a supply line leads to an air drier for the purpose of supplying the compressed air system. On the outlet side of the air drier, the supply line branches into a plurality of line branches that lead to at least two cons... | 07/18/2000 |
| 5951260 | System and method for electronic air compressor control An electronic air compressor control system and method including an actuator connected to an air compressor for regulating the loading and unloading of the air compressor based on predetermined conditions, a power supply electrically connected to the actu... | 09/14/1999 |
| 5885062 | Switching valve fluid compressor and heat pump type refrigeration system A switching valve comprises a valve body to which a plurality of fluid passages are connected, a slider having a gas passage capable of selectively connecting two fluid passages, a balance port for letting the gas passage communicate with the outside of t... | 03/23/1999 |
| 5555726 | Attenuation of fluid borne noise from hydraulic piston pumps In many hydraulic systems, fluid borne noise is generated during operation due to the effects of the hydraulic piston pump. This fluid borne noise is transmitted to various structures of the hydraulic system which emit vibrations that create the largest p... | 09/17/1996 |
| 5547349 | Oil pump system An oil pump system includes an oil pump, a first hydraulic passage, a second hydraulic passage, a return hydraulic passage, and a control valve. When a revolving speed of a rotor of the oil pump is low, and when a hydraulic pressure of a hydraulic oil, di... | 08/20/1996 |
| 5531571 | Regulating device with starting and stopping device for screw-type compressors, and starting and stopping device used hereby A regulating device for screw-type compressors, which contain a compressor dement (1), an electrical motor (2) to drive the compressor element (1), a minimum pressure valve (4) which is mounted on the outlet (5) of the compressor element (1) and a vessel ... | 07/02/1996 |
| 5456581 | Control system for a multi-piston pump with solenoid valves for the production of constant outlet pressure flow A multi-piston pump is provided which uses microprocessor controlled check all valves to control flow rate of a fluid at the pump's outlet port. The pump includes nine cylindrical shaped chambers and associated reciprocating pistons which are driven by a c... | 10/10/1995 |
| 5352098 | Turn valve control system for a rotary screw compressor An apparatus for regulating the fluid throughput of a rotary screw compressor from a full capacity operating condition to a desired predetermined capacity operating condition includes a turn valve or spiral valve which is disposed in fluid communication w... | 10/04/1994 |
| 5261791 | Method and apparatus for recovering pollutants from an aquifer Pumping apparatus for recovering a first liquid, such as a pollutant, floating on a second liquid, such as ground water. A pump immersed in the second liquid, or ground water, operates to produce a cone of depression and discharge the second liquid into a... | 11/16/1993 |
| 5224839 | Variable delivery pump Variability of the output of a pump is achieved in a power efficient manner by forcing fluid through a check valve while intermittently shunting the pump's output side to is input side. A diverter valve is employed for this purpose wherein a perforated va... | 07/06/1993 |
