| Patents for F04B 49 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups (22,036) |
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| 05/06/2005 | CA2541670A1 Current monitoring system and method for metering peristaltic pump |
| 05/05/2005 | US20050096171 Method and apparatus for maintaining hydraulic pressure when a vehicle is stopped |
| 05/05/2005 | US20050095145 Liquid chromatograph pump and control method therefor |
| 05/05/2005 | US20050095143 Pumping apparatus using thermal transpiration micropumps |
| 05/05/2005 | US20050095140 Rod saver speed control method and apparatus |
| 05/05/2005 | US20050093500 Integrated, redundant high availability fan system |
| 05/04/2005 | EP1528338A2 Controller for variable displacement compressor and control method for the same |
| 05/04/2005 | EP1527279A1 Device for compressing gases |
| 05/04/2005 | EP1157212A4 Pump drive decoupler |
| 05/04/2005 | DE10147972B4 Hydraulisches Neutralstart-Steuerventil für eine servogesteuerte variable hydraulische Verstelleinheit und Verfahren zum automatischen Sicherstellen eines Neutralzustands für Kaltstarts einer hydraulischen Einheit Hydraulic neutral start control valve for a servo-controlled variable hydraulic positioner and method for automatically ensuring a neutral state for cold starts a hydraulic unit |
| 05/04/2005 | CN2697347Y Lever balance type constant power controller for hydraulic pump |
| 05/04/2005 | CN1611867A Operation controldevice for reciprocating compressor and method thereof |
| 05/04/2005 | CN1200208C Engine speed control system for building machinery |
| 05/04/2005 | CN1200198C Control method for automatic balance regulation of pumping unit |
| 05/03/2005 | US6886356 Car air-conditioning system |
| 05/03/2005 | US6886354 Compressor protection from liquid hazards |
| 04/28/2005 | WO2005038255A2 Evacuation apparatus |
| 04/28/2005 | US20050089425 Beam pump dynamic load monitoring and methods |
| 04/27/2005 | CN2695679Y Oil-well pump |
| 04/27/2005 | CN2695670Y Swinging angle type radial plunger variable pump |
| 04/27/2005 | CN1609449A Method for driving pump |
| 04/26/2005 | US6884255 Identification and communication system for inflatable devices |
| 04/26/2005 | US6883313 Electro-hydraulic pump displacement control with proportional force feedback |
| 04/21/2005 | WO2005035985A1 Device for automatically controlling a hydraulic pump |
| 04/21/2005 | WO2005035984A1 Hermetic-type compressor |
| 04/21/2005 | WO2005005833A3 Integration of automated cryopump safety purge |
| 04/21/2005 | US20050084724 Regenerative compressor motor control for a fuel cell power system |
| 04/21/2005 | US20050084387 Control system for hydrostatic pump |
| 04/21/2005 | US20050083630 Overload protective apparatus of a compressor and a method thereof |
| 04/21/2005 | US20050081536 Cryopump temperature control of arrays |
| 04/21/2005 | CA2538452A1 Motorized vacuum/pressure pump and stopper |
| 04/20/2005 | EP1524435A2 Oscillation-type compressor |
| 04/20/2005 | EP1524434A1 Oscillation-type compressor |
| 04/20/2005 | CN2694015Y Closing gun stopping machine type relief valve decompressing by pinhole used in high pressure washer pump |
| 04/20/2005 | CN2694014Y Closing gun stopping machine type relief valve decompressing by gap used in high pressure washer pump |
| 04/20/2005 | CN1607478A An adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor |
| 04/20/2005 | CN1607333A Control system for hydrostatic pump |
| 04/20/2005 | CN1198054C Intelligent monitoring protector of water-cooled helium compressor |
| 04/19/2005 | US6882960 System and method for power pump performance monitoring and analysis |
| 04/19/2005 | US6881040 Multi-stage screw compressor unit accommodating high suction pressure and pressure fluctuations and method of operation thereof |
| 04/19/2005 | US6880564 Dosage control apparatus |
| 04/19/2005 | CA2329162C Motor reversal switching system |
| 04/14/2005 | WO2005002415A3 Virtual ports devices and method |
| 04/14/2005 | US20050079074 Vacuum control system |
| 04/14/2005 | US20050076888 Safety fuel injection pump |
| 04/14/2005 | DE10341946A1 Operation of a combined electronically control motor unit and cooperating mechanical device, whereby within a given time interval the motor is operated at different speeds to prevent resonance effects |
| 04/14/2005 | DE10006405B4 Verstellvorrichtung Adjustment |
| 04/13/2005 | EP1522726A2 Safety fuel injection pump |
| 04/13/2005 | EP1522722A1 Combustion engine and method to control stop of a combustion engine |
| 04/13/2005 | EP1522430A1 Method and device to increase the pressure of gases |
| 04/13/2005 | CN2692376Y High pressure cleaning machine multifunction plunger pump |
| 04/13/2005 | CN2692375Y Slurry pump over pressure protection device |
| 04/13/2005 | CN1605748A 安全燃料喷射泵 Safety fuel injection pump |
| 04/13/2005 | CN1196904C Air conditioning system and method |
| 04/13/2005 | CN1196862C Control mechanism and method for reciprocating compressor |
| 04/13/2005 | CN1196861C Equipment and method for controlling compressor |
| 04/13/2005 | CN1196850C Method for controlling stroke period of pumping unit |
| 04/12/2005 | US6877947 Method and apparatus for early fault detection in centrifugal pumps |
| 04/12/2005 | US6877713 Tube occluder and method for occluding collapsible tubes |
| 04/12/2005 | US6877511 Portable drag compressor powered mechanical ventilator |
| 04/12/2005 | US6877326 Operation control apparatus and method of linear compressor |
| 04/12/2005 | US6877178 Inflatable support |
| 04/07/2005 | WO2005031287A2 Method and apparatus employing turbo pump-foreline pump configuration, for example, in mass spectrometer |
| 04/07/2005 | US20050074339 Hybrid compressor device |
| 04/07/2005 | US20050074337 Current monitoring system and method for metering peristaltic pump |
| 04/07/2005 | DE10152782B4 Verfahren zum Ansteuern einer Dosierpumpe A method for driving a metering pump |
| 04/06/2005 | EP1521282A2 A damped pressure switch |
| 04/06/2005 | EP1520987A1 Valve |
| 04/06/2005 | EP1520105A1 Method for detecting the state of charge of an electromagnetic pump having a vibrating core and pertaining to an electrical household appliance |
| 04/06/2005 | CN2690623Y Hydraulic balancing oil pump |
| 04/05/2005 | US6874996 Compressor having independently driven members |
| 04/05/2005 | US6874772 Method for controlling the storage pressure in a closed level control system |
| 04/05/2005 | US6874474 Single-die injection pump for a common rail fuel injection system |
| 04/05/2005 | US6874318 Automatic remote pressure compensation in an open circuit pump |
| 04/05/2005 | CA2303793C Apparatus and method for diagnosing the status of specific components in high-pressure fluid pumps |
| 03/31/2005 | WO2005029692A1 Compressor driving unit and refrigerator using the same |
| 03/31/2005 | WO2005028865A1 Variable displacement type clutchless compressor |
| 03/31/2005 | WO2005028863A1 Power regulating device |
| 03/31/2005 | US20050071064 Signal processing system for construction machine |
| 03/31/2005 | US20050069425 Tube occluder for occluding collapsible tubes |
| 03/31/2005 | US20050069418 Pump drive motor control apparatus |
| 03/31/2005 | US20050069417 Linear compressor and control method thereof |
| 03/31/2005 | US20050067598 Control valve for variable capacity type compressor |
| 03/31/2005 | US20050066676 Air conditioner |
| 03/31/2005 | US20050066673 Pressure equalization system |
| 03/31/2005 | DE19520757B4 Kältemittel-Spiralkompressor Refrigerant scroll compressor |
| 03/30/2005 | EP1519046A2 Apparatus for compensating for speed error of motor |
| 03/30/2005 | CN2688928Y Safety valve of volumetric pump |
| 03/30/2005 | CN2688925Y Preventing unit of low-temperature dehumidifying compressor |
| 03/30/2005 | CN2688897Y Oil-shortage preventer of air compressor |
| 03/29/2005 | US6873504 System and method for detecting loss of phase in a compressor system |
| 03/29/2005 | US6872056 Radial piston pump for producing high fuel pressure, as well as method for operating an internal combustion engine, computer program, and control and/or regulating unit |
| 03/29/2005 | US6871836 Electromagnetic valve for variable discharge fuel supply apparatus |
| 03/29/2005 | US6871661 Combination fitting |
| 03/29/2005 | US6871551 Apparatus for generating and conducting a fluid flow, and method of monitoring said apparatus |
| 03/24/2005 | WO2005026545A1 Electromagnetic pump driving method |
| 03/24/2005 | WO2004068693A3 Brushless and sensorless dc motor control system with locked and stopped rotor detection |
| 03/24/2005 | US20050063840 Air compressor having stable configuration |
| 03/24/2005 | US20050062448 Apparatus for compensating for speed error of motor |
| 03/24/2005 | US20050061722 Pump, pump for liquid chromatography, and liquid chromatography apparatus |