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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08/10/1999 | US5935099 Drug pump systems and methods |
08/10/1999 | US5934880 Fluid pressure source apparatus for providing adequate accumulator pressure during pressure failure |
08/10/1999 | US5934879 Pump torque control system |
08/10/1999 | US5934093 Servo device for regulating a refrigerant into a compressor |
08/10/1999 | CA2115824C Pump for use in medical technology |
08/05/1999 | WO1999039104A1 Variable displacement compressor |
08/05/1999 | WO1999009319A9 Two stage reciprocating compressors and associated hvac systems and methods |
08/05/1999 | DE19901442A1 Action detection device for operating valve for hydraulic machinery |
08/04/1999 | EP0933604A2 Compressor control system for air conditioner |
08/03/1999 | US5932987 Variable step rate precision pumping apparatus |
08/03/1999 | US5932095 Multi-chambered supercritical fluid extraction cartridge |
08/03/1999 | US5931647 For pumping fluids from a fluid source to a fluid sink |
08/03/1999 | US5931644 Precision demand axial piston pump with spring bias means for reducing cavitation |
08/03/1999 | US5931008 Protecting device for car air conditioner |
08/03/1999 | US5930996 Auto-acceleration system for prime mover of hydraulic construction machine and control system for prime mover and hydraulic pump |
07/29/1999 | WO1999037920A2 Variable capacity compressor having adjustable crankpin throw structure |
07/29/1999 | DE19903161A1 Pressure regulation valve for high-pressure jet washer |
07/29/1999 | DE19801355A1 High pressure pump for supplying fuel to common rail injection systems of IC engines |
07/28/1999 | EP0931680A2 Procedure and device for monitoring the functioning of a compressor |
07/28/1999 | EP0782671B1 Device for the controlled driving of at least one hydraulic shaft |
07/28/1999 | CN1224124A Displacement control and stroke control for hydraulic unit |
07/27/1999 | US5927955 Sump pump container and method |
07/27/1999 | US5927950 Device for controlling the supply of water (or other liquid) by a pump and for protecting the same in the event of dry running |
07/27/1999 | US5927073 Electric hydraulic hybrid motor |
07/27/1999 | US5927072 Load sense hydraulic system |
07/22/1999 | DE19902107A1 Displacement control device for a hydraulic unit such as a hydrostatic transmission of skid-steer loader |
07/22/1999 | DE19901964A1 Valve group for water jet cleaner preventing unstable operation |
07/21/1999 | EP0929745A1 Integrated controller pump |
07/21/1999 | CN2329792Y Rod-type pump under-well non-pressing well device |
07/20/1999 | US5925825 For use in a liquid pumping system |
07/20/1999 | US5924975 Linear pump |
07/20/1999 | CA2161504C Method and apparatus for slowing back spin of a rod string of a progressing cavity pump powered by an electric motor when power is lost |
07/20/1999 | CA2031566C Liquid additive metering |
07/14/1999 | EP0929019A1 System for providing pressure regulation in an enclosure under suction from a vacuum pump |
07/14/1999 | EP0928898A2 Control valve for variable displacement compressors |
07/14/1999 | CN1222863A Intracardiac blood pump |
07/14/1999 | CN1222648A Compressor driving apparatus |
07/13/1999 | US5921342 Power assisted steering apparatus for automotive vehicle |
07/13/1999 | US5921274 Internal relief and bypass valve for pumps and piping systems |
07/08/1999 | DE19847917A1 Piston for pump or compressor with adjustable delivery volume |
07/06/1999 | US5918573 Energy efficient fluid pump |
07/01/1999 | DE19757833A1 Adjusting suction speed for automatic liquid sample taking units using suction delivery |
06/30/1999 | EP0925081A1 Intracardiac pump device |
06/30/1999 | EP0925080A1 Intracardiac blood pump |
06/30/1999 | CN2326752Y Over-pressure protection device for water-pump |
06/30/1999 | CN1221470A Pump-off controller |
06/29/1999 | US5916165 Pneumatic controller and method |
06/29/1999 | US5915932 Peristaltic pump having a roller support |
06/29/1999 | US5915929 Low power electromagnetic pump |
06/29/1999 | US5915925 Pulseless liquid supply system for flow cytometry |
06/24/1999 | DE19757069A1 Boiler flue gas condensate level evaluation method |
06/23/1999 | EP0924586A1 Regulation of fluid conditioning stations |
06/23/1999 | EP0924438A2 Combined valve assembly |
06/23/1999 | EP0924433A1 Scroll-type compressor |
06/23/1999 | EP0924427A1 Power control valve |
06/23/1999 | EP0715704B1 Pump arrangement for an oil burner |
06/23/1999 | CN2325698Y Variable frequency air flow adjusting device |
06/23/1999 | CN2325557Y Device for controlling oil well pump intermittent working |
06/23/1999 | CN1220633A Pneumatic suspension |
06/23/1999 | CN1220347A Scroll-type compressor and operation method therefor |
06/23/1999 | CN1220344A Variable displacement type compressor |
06/22/1999 | US5913664 Safety relief valve assembly for a fluid displacement apparatus |
06/22/1999 | US5913663 Device for regulating the total power of at least two variable displacement hydrostatic pumps |
06/16/1999 | EP0922813A2 hydraulic drive system for hydraulic work vehicle |
06/16/1999 | EP0922162A1 Travelling thick matter pump |
06/16/1999 | EP0636203B1 Variable displacement pump |
06/15/1999 | US5911881 Biasing device that guides file into restrictor |
06/15/1999 | US5911562 High pressure fluid delivery system with automatic priming valve |
06/15/1999 | CA2086423C Radial piston fluid machine and/or adjustable rotor |
06/10/1999 | WO1999029035A1 Method for controlling turn-on/off of motor preheater and motor preheater |
06/10/1999 | WO1999028627A1 Variable capacity swash plate type clutchless compressor |
06/10/1999 | WO1999028620A1 Quick-start of a high pressure pump by means of a pressure intensifier piston |
06/10/1999 | WO1999009319A8 Two stage reciprocating compressors and associated hvac systems and methods |
06/10/1999 | DE19754277A1 Hydraulic drive unit e.g. pressure converter |
06/09/1999 | EP0921311A2 Cryopump |
06/09/1999 | CN2323172Y Automatic pressure controlling device for high pressure pump |
06/08/1999 | US5911127 Prediction of chiller compressor motor overheating |
06/03/1999 | WO1999014498A3 Temperature control system in a high pressure pump for failure detection of valves and plunger seal |
06/02/1999 | EP0919722A2 Regeneration of a cryopump |
06/02/1999 | EP0919721A2 Thermal overload control of a variable displacement compressor |
06/02/1999 | EP0919720A2 Control valve for variable capacity compressors |
06/02/1999 | EP0918675A1 Energy supply for a compressed air braking system, in particular for utility vehicles |
06/02/1999 | EP0918597A1 Pumping unit with speed transducer |
06/02/1999 | DE19753155A1 Kraftstoffversorgungssystem für eine Brennkraftmaschine und darin verwendete Hochdruckpumpe Fuel supply system for an internal combustion engine and used therein high-pressure pump |
06/01/1999 | US5909352 Alternator circuit for use in a liquid level control system |
06/01/1999 | US5907951 Hydraulic control system for construction machine |
05/27/1999 | WO1999025977A1 Variable displacement swash plate type clutchless compressor |
05/26/1999 | EP0918159A2 Cryopump |
05/26/1999 | EP0760059A4 Low power electromagnetic pump |
05/20/1999 | WO1999024094A1 Pneumatic controller and method |
05/19/1999 | EP0916026A1 Process for regulating a unit or a frequency converter |
05/19/1999 | EP0808421B1 Adjustable hydrostatic pump |
05/18/1999 | US5905355 Pump-motor apparatus |
05/18/1999 | US5904126 Pump control system |
05/18/1999 | US5904050 Motor vehicle air conditioning control system |
05/14/1999 | WO1999023387A1 Piston pump |
05/14/1999 | WO1999023386A1 Peristaltic pump controller with nonlinear pump calibration coefficient |
05/14/1999 | WO1999022783A1 Portable peristaltic pump for peritoneal dialysis |
05/14/1999 | CA2306230A1 Peristaltic pump controller with nonlinear pump calibration coefficient |
05/12/1999 | EP0915256A2 Apparatus for controlling the starting and stopping of a hydraulic pump |