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| Number | Title | Issue Date |
| 8157534 | Control device for a power unit The present invention refers to a control equipment for a pressure set, said pressure set being made up of a main pump and at least one auxiliary pump, characterized in that it comprises a housing fitted to the exit of the main pump, therewithin it is provided with:... | 04/17/2012 |
| 8021122 | Inflation control apparatus for an inflatable object with two chambers Apparatus for maintaining differential internal fluid pressure in a dual fluid chamber object where it is desired for one chamber to have greater internal pressure than the other includes a sensor for generating a differential signal indicating the difference in pre... | 09/20/2011 |
| 7909582 | Vehicular oil pump control apparatus A control apparatus for controlling two oil pumps which are provided on a vehicle wherein the two oil pumps are selectively driven by respective different drive power sources such that one of the two oil pumps is operated while the other oil pump is held at rest, th... | 03/22/2011 |
| 7874807 | Air compressor with shut-off mechanism A compressor system is disclosed, comprising a first pump driven by a D/C motor, a second pump driven by an A/C motor, and a switch which allows a user to manually selectively engage of one of the D/C motor or NC motor, including a gauge having a user settable shut-... | 01/25/2011 |
| 7789632 | Fast enclosure pumping with power saving A method and apparatus for reducing the pressure in an enclosure are provided. The method includes at least one primary pump on the outlet side and one secondary pump on the inlet side connected in series in the flow path of the pumped gases and driven in the same r... | 09/07/2010 |
| 7695250 | Dual pump assembly The apparatus of the present invention provides a compact dual-pump assembly for an automotive transmission. The dual-pump assembly preferably includes a housing having a valve assembly mounted thereto. The valve assembly includes a shuttle valve disposed in fluid c... | 04/13/2010 |
| 7363996 | Vehicular drive system A second electric motor is arranged on a first axis on which an output shaft of the engine is arranged, a transmission is arranged on a second axis which is parallel with the first axis, and a clutch is arranged on the first axis to selectively connect and disconnec... | 04/29/2008 |
| 7350401 | Liquid feeding system This liquid feeding system has the first and second pumps each of which is provided with a plunger. Liquid sucked through each of the pump suction ports is discharged out of the discharging port through the first pump and/or second pump. Under the starting operation... | 04/01/2008 |
| 7342756 | Fault recognition in systems with multiple circuits A method for detecting compressor or system degradation or malfunction in a multiple circuit compressor system includes the steps of providing a multiple circuit compressor system including at least a first circuit and a second circuit; and comparing a first value c... | 03/11/2008 |
| 7310226 | Modularized redundant heat sink for dissipating heat generated from chips A modularized redundant heat sink for dissipating heat generated from chips includes an independent rectangular fin whose sides are provided with at least more than two elastic pins, and which is provided with a bottom surface for conducting temperature; a circuit b... | 12/18/2007 |
| 7303608 | Groundwater reactive gas injection and venting system for a groundwater remediation system In a system for collecting gas from a subsurface body of contaminated water, a site collects unabsorbed reactive gas from the subsurface body of contaminated water. In addition, a vacuum source is connected to the site. Furthermore, a controller regulates a flow of ... | 12/04/2007 |
| 7303140 | Operationally interactive enclosure A platform for electronic components has a temperature sensing array, a vibration sensing array, a programmable logic device, and one or more cooling fans. The programmable logic device receives temperature data from the temperature sensing array and structure-borne... | 12/04/2007 |
| 7282873 | Mutual active cancellation of fan noise and vibration A multi-fan apparatus and method incorporates mutual active cancellation of fan noise and/or vibrations. The multi-fan apparatus includes two or more fans circuits, each comprising a fan, a fan speed controller and a separate tachometer, and a fan phase controller. ... | 10/16/2007 |
| 7278776 | Apparatus and method for injecting a liquid dye into a polymer melt An apparatus and a method for injecting a liquid dye into a polymer melt, which includes a metering pump with a metering inlet and a metering outlet. The metering inlet connects to a dye tank and the metering outlet connects to a polymer melt carrying component. To ... | 10/09/2007 |
| 7275916 | Integrated engine/compressor control for gas transmission compressors A method and system for controlling an engine that drives a reciprocating compressor, such as the large compressors used for natural gas transmission. A controller receives data from the compressor representing operation conditions, such as load step, suction pressu... | 10/02/2007 |
| 7271561 | Fan module and control device thereof Fan module and control device thereof. The fan module comprises a plurality of fans and the control device. The control device comprises a temperature sensing circuit, and a driving circuit. The temperature sensing circuit detects an ambient temperature of the fans ... | 09/18/2007 |
| 7252483 | Method of managing time, at which maintenance in a gas compressor multiple system should be carried out The method of managing time M, at which maintenance of a gas compressor multiple system incorporating therein a plurality of gas compressors should be carried out, involves making a comparison between a value of M and a predetermined time N for necessary maintenance... | 08/07/2007 |
| 7248004 | Cooling fan, in particular for motor vehicles A radiator blower, in particular for motor vehicles, is indicated that comprises a plurality of individual fans (11, 12), each having an electrical drive motor (13, 14), and a plurality of switches (S1, S2, S3), each capable of bei... | 07/24/2007 |
| 7239941 | Device for programming a pump used to inject medicaments The invention relates to a device for programming a pump used to inject medicaments. Said pump comprises two connectable units, namely: (i) a cartridge unit (12) which contains the liquid to be injected and which comprises an electronic memory unit (36... | 07/03/2007 |
| 7234324 | Method and installation for controlling at least one cryogenic centrifugal compressor compression line Methods and apparatuses for controlling systems of cryogenic centrifugal compressors. A predetermined curve in the form of a first parameter as a function of a second parameter is selected. The first parameter represents the rotational speed of a compressor, and the... | 06/26/2007 |
| 7220355 | Evaporative cooler pump strainer A strainer for a water pump includes a bottom panel and an upwardly extending side panel forming a cavity. The base of the water pump is received within the cavity and is removably secured to the filter. ... | 05/22/2007 |
| 7217104 | Method and system for liquid leak detection, notification and removal A system for detecting a collection of liquid, notifying a person or thing that liquid has been detected and pumping the liquid. The system includes a control unit, at least one sensor and relay and a pump. Preferably, the system includes a first sensor that senses ... | 05/15/2007 |
| 7213666 | Hybrid vehicle An engine is connected to front wheels via a primary motor, a clutch and a transmission, and a secondary motor is connected to rear wheels. A vehicle is driven by the secondary motor while performing a combustion suspended idle operating condition in which the engin... | 05/08/2007 |
| 7207183 | System and method for capacity control in a multiple compressor chiller system A capacity control algorithm for a multiple compressor liquid chiller system is provided wherein the speed and number of compressors in operation are controlled in order to obtain a leaving liquid temperature setpoint. In response to an increase in the load in the c... | 04/24/2007 |
| 7201016 | Refrigerant supply apparatus A refrigerant supply apparatus for supplying a refrigerant to a cooling target. The apparatus includes a refrigerant supply channel through which pure water as the refrigerant is supplied to the cooling target, an impurity removing unit disposed in an impurity remov... | 04/10/2007 |
| 7174731 | Rotational speed control system, rotatingly driving system, air blow system, clean bench, outdoor unit of air conditioner This invention relates to a rotational speed control system including a plurality of motor drivers for driving motors, and the object thereof is to drive a plurality of motors at the same rotational speed without depending on the number of motor drivers and without ... | 02/13/2007 |
| 7171277 | System and method for controlling the delivery of medication to a patient A care management system in which the management of the administration of care for patients is automated. Hospital information systems are monitored and the information from those systems is used in verifying the administrations of care to patients. The care managem... | 01/30/2007 |
| 7163380 | Control of fluid flow in the processing of an object with a fluid An apparatus for and methods of control of a fluid flow. In a system for supercritical processing of an object, the apparatus includes a measuring device for measuring a pump performance parameter and a controller for adjusting a fluid flow in response to the perfor... | 01/16/2007 |
| 7155367 | Method for evaluating relative efficiency of equipment The current invention is a computer implemented method of evaluating relative efficiency of equipment by constructing a mathematical model of the operation of the equipment, calculating a distance between an actual operating point and the mathematically obtained opt... | 12/26/2006 |
| 7140833 | Integrated turbo/drag/regenerative pump with counter-rotating turbo blades The present invention relates to vacuum pumps and a method for creating and maintaining a high vacuum. A vacuum pump includes a regenerative section and a turbo-molecular section. A common first rotor carries forward-rotating elements of both the regenerative sectio... | 11/28/2006 |
| 7143016 | System and method for dynamic multi-objective optimization of pumping system operation and diagnostics Control systems and methodologies are disclosed for controlling a process having one or more motorized pumps and an associated motor drives, which comprise selecting a desired operating point within an allowable range of operation about a process setpoint according ... | 11/28/2006 |
| 7135826 | Fan control system A fan control system. The system includes a plurality of fans, each having a control device. One of the fans is designated as a master fan and others are served as slave fans according to a specific designation method, wherein the control device of the master fan ac... | 11/14/2006 |
| 7121813 | Reverse rotation preventing structure of centrifugal compressor The invention relates to a reverse rotation preventing structure of a centrifugal compressor. The reverse rotation preventing structure of the centrifugal compressor comprises: a discharge pipeline of the centrifugal compressor; a suction pipeline of the centrifugal... | 10/17/2006 |
| 7100632 | Sump liner A sump liner comprising a liner wall joined with a base member, the liner wall extending about the periphery of the base member, the liner wall comprising a primary reservoir portion and a secondary reservoir portion, with a weir extending from the base member and t... | 09/05/2006 |
| 7096681 | System and method for variable speed operation of a screw compressor A system and method are provided for variable speed operation of a screw compressor to obtain increased capacity and efficiency. The screw compressor is connected to an induction motor driven by a variable speed drive, wherein the screw compressor has a variable out... | 08/29/2006 |
| 7095188 | Serial fan set and rotation speed-matching curve generation method thereof A serial fan set and rotation speed-matching curve generation method thereof are provided. The serial fan set comprises a rotation speed control module, a first fan and a second fan, in which the rotation speed control module is used to receive the power signal and ... | 08/22/2006 |
| 7090470 | Apparatus and method for preventing a piston and valve collision in a linear compressor An apparatus and method for controlling a linear compressor is provided. The linear compressor controlling apparatus includes a voltage detection unit, a current detection unit, a control unit and a compressor drive unit. The voltage detection unit detects a voltage... | 08/15/2006 |
| 7083392 | Pump and pump control circuit apparatus and method A method and apparatus for a pump and a pump control system. The apparatus includes pistons integrally formed in a diaphragm and coupled to the diaphragm by convolutes. The convolutes have a bottom surface angled with respect to a top surface of the pistons. The app... | 08/01/2006 |
| 7075268 | System and method for increasing output horsepower and efficiency in a motor A system and method are provided to increase the horsepower of an induction motor. One technique for increasing the horsepower of a motor is to connect the motor to a variable speed drive that is providing an output voltage and frequency greater than the standard li... | 07/11/2006 |
| 7063785 | Pump for liquid chromatography The invention provides a pump for liquid chromatography excellent in feeding liquid stably at an extremely low flow rate with high accuracy and in discharging bubbles at startup. At startup, a first plunger feeds solvent at a large flow rate to discharge bubb... | 06/20/2006 |
