| 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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| 09/16/1997 | US5668328 Method and apparatus for hydraulically tightening threaded fasteners |
| 09/16/1997 | US5667368 Diaphragm metering pump including improved leak detection diaphragm |
| 09/12/1997 | WO1997016643A3 Piston pump |
| 09/10/1997 | EP0794333A1 Pilot by-pass valve for liquid pumps |
| 09/10/1997 | EP0793986A1 Multi-chambered super-critical fluid extraction cartridge and processes using it |
| 09/10/1997 | EP0793779A1 Method and control system of controlling a fluid compression system |
| 09/10/1997 | CN1159219A Device with at least one hydraulic shaft |
| 09/10/1997 | CN1158945A Scroll machine with capacity modulation |
| 09/09/1997 | US5664938 Mixing apparatus for microflow gradient pumping |
| 09/09/1997 | US5664937 Precisely flow-controlling pump |
| 09/04/1997 | WO1997032128A1 Pump |
| 09/03/1997 | EP0793017A2 Pump for a high pressure cleaning apparatus |
| 09/02/1997 | US5662081 Engine assembly |
| 08/28/1997 | WO1997031349A1 Pump control system |
| 08/28/1997 | WO1997031190A1 Pressure control module |
| 08/28/1997 | WO1997031188A1 Inverter-controlled sealed compressor |
| 08/28/1997 | DE19606747A1 Display and position equipment industrial controller e.g. for compressor |
| 08/27/1997 | EP0791737A1 Device for controlling the rotation speed of an engine for a hydraulic working machine |
| 08/26/1997 | US5660531 Gear pump with minimized canitation |
| 08/21/1997 | WO1997030304A1 Valve unit |
| 08/21/1997 | WO1997030288A2 Magnetic direct drive reciprocating pump apparatus and method with integral pressure sensing |
| 08/21/1997 | DE19706587A1 Coolant compressor with variable capacity for refrigerating system |
| 08/21/1997 | DE19605557A1 Ventilpatrone Valve cartridge |
| 08/20/1997 | CN2260182Y Optical information generating device of the control cabinet for oil pumping machine |
| 08/20/1997 | CN1157647A Capacity controller of variable capacity hydraulic pump |
| 08/19/1997 | US5659485 Discharge flow control system and method in hydraulic pump |
| 08/19/1997 | US5658252 Drug pump including pressure plate and tube |
| 08/19/1997 | US5658250 For infusing fluid into a patient |
| 08/19/1997 | US5658131 Electric pump control system |
| 08/14/1997 | WO1997028976A1 Motor vehicle air conditioning control system |
| 08/13/1997 | CN2259509Y Intelligent controlling device for beam pumping machine |
| 08/13/1997 | CN1157024A Pumping device |
| 08/13/1997 | CN1156814A Apparatus for controlling refrigerator equipped with linear compressor |
| 08/12/1997 | US5657000 Peristaltic pump occlusion detector and adjuster |
| 08/12/1997 | US5656896 Power supply for vibrating compressors |
| 08/12/1997 | US5655889 Combined variable volume air pump and peristalic pump |
| 08/12/1997 | US5655888 Pump and combination pump and trap with snap-over mechanism and double-seal outlet valve |
| 08/12/1997 | US5655779 Resilient rectangular lip seal arrangement |
| 08/05/1997 | US5654504 In a well |
| 08/05/1997 | US5653885 Apparatus and method for supercritical fluid extraction |
| 07/31/1997 | WO1997027093A1 Brake pressure control devices |
| 07/31/1997 | DE19649675A1 Artificial heart pump for human or animal implantation |
| 07/31/1997 | DE19602363A1 Bremsdrucksteueranlagen Brake pressure control equipment |
| 07/30/1997 | EP0474749B1 Low pressure recirculation valve |
| 07/29/1997 | US5651665 Adjustable relief valve arrangement for a motor vehicle power steering hydraulic pump system |
| 07/29/1997 | US5651301 Hydrostatic piston machines |
| 07/29/1997 | US5651267 Starting arrangement for small refrigeration systems |
| 07/24/1997 | WO1997026457A1 Method and device for metering liquids |
| 07/23/1997 | EP0785361A1 Oil pump apparatus |
| 07/23/1997 | EP0633980B1 Scroll machine with overheating protection |
| 07/16/1997 | EP0784173A2 Safety relief valve assembly for a fluid displacement apparatus |
| 07/16/1997 | EP0783395A1 Hydraulic drive unit |
| 07/15/1997 | US5647854 Base plate for a drug pump |
| 07/15/1997 | US5647733 Diaphragm metering pump having modular construction |
| 07/15/1997 | US5647731 Air compressor |
| 07/15/1997 | US5647730 Self-contained, clearance-volume adjustment means for a gas compressor |
| 07/15/1997 | US5647575 Volumetric shaft/valve |
| 07/10/1997 | WO1997024512A1 Surge recurrence prevention control system for dynamic compressors |
| 07/09/1997 | EP0782672A1 Regulating device for displacement pumps |
| 07/09/1997 | EP0782671A1 Device with at least one hydraulic shaft |
| 07/09/1997 | EP0673328B1 Power-assisted steering system |
| 07/09/1997 | CN2257571Y Multifunction oiling automatic control device for oil field beam unit |
| 07/08/1997 | US5644968 Variable capacity swash plate type compressor with an improved hinge unit for inclinably supporting a swash plate |
| 07/08/1997 | CA2030869C Vacuum pump control apparatus for an evacuating type waste water collecting system |
| 07/02/1997 | EP0781926A1 Scroll machine with capacity modulation |
| 07/02/1997 | EP0781923A1 Capacity controller of variable capacity hydraulic pump |
| 07/02/1997 | EP0781380A1 System for increasing flow uniformity |
| 07/01/1997 | US5642989 Booster compressor system |
| 07/01/1997 | US5642753 Valve unloader assembly |
| 06/26/1997 | WO1997022914A1 Method of output correction for control apparatus, the control apparatus, and hydraulic pump control apparatus |
| 06/26/1997 | DE19626793C1 Hydraulic equipment for parallel regulation of hydrostatic displacement pumps |
| 06/25/1997 | EP0780522A1 Pump Torque control system |
| 06/24/1997 | US5642053 Method of identifying an unknown fluid |
| 06/24/1997 | US5641270 Durable high-precision magnetostrictive pump |
| 06/18/1997 | EP0779431A2 Valve mechanism for a compressor |
| 06/18/1997 | EP0778921A1 Pumping device |
| 06/18/1997 | CN1152098A Diffuser driving apparatus for split air conditioner |
| 06/18/1997 | CN1152078A Variable capacity refrigerant compressor |
| 06/17/1997 | US5639224 Device for monitoring pressure or temperature in a compressor |
| 06/17/1997 | US5638735 Variable displacement compressor |
| 06/14/1997 | CA2192154A1 Regenerative hydraulic power transmission for down-hole pump |
| 06/12/1997 | DE19620665C1 Hydraulic control system for dredger slewing gear |
| 06/12/1997 | DE19620664C1 Hydraulic control circuit for dredger slewing gear |
| 06/11/1997 | EP0777887A1 Bimodal liquid chromatography pump employing artificial intelligence logic feedback control |
| 06/10/1997 | US5637208 Solvent pumping system for chromatography with switching-valve |
| 06/10/1997 | US5636973 Crank chamber pressure controlled swash plate compressor with suction passage opening delay during initial load condition |
| 06/10/1997 | US5636971 Regulation of fluid conditioning stations |
| 06/10/1997 | CA2080066C Slant plate type compressor with variable capacity control mechanism |
| 06/05/1997 | DE19544494C1 Axial piston pump of inclined plate type |
| 06/04/1997 | EP0496803B1 Computer controlled metering pump |
| 06/03/1997 | US5635070 Pumping speed controlled and volume pumped determined from pressure-related signal in feedback circuit |
| 06/03/1997 | US5634779 Hydraulic fluid-driven, multicylinder, modular reciprocating piston pump |
| 06/03/1997 | US5634778 Remote control pump |
| 06/03/1997 | US5634777 Radial piston fluid machine and/or adjustable rotor |
| 06/03/1997 | US5634492 Compressor valve lifter |
| 05/28/1997 | EP0693160B1 Method and apparatus for measuring piston position in a free piston compressor |
| 05/28/1997 | EP0579815B1 Package system for the collection and transport of liquid waste |
| 05/28/1997 | CN1150619A 活塞式压缩机 Piston compressor |
| 05/27/1997 | US5632607 Piston and valve arrangement for a wobble plate type pump |
| 05/27/1997 | US5632606 For pumping fluids from a fluid source to a fluid sink |