| 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) |
|---|
| 04/04/1993 | CA2079397A1 Dc motor drive system and method |
| 04/01/1993 | WO1993006572A1 Proximity detection system and oscillator, and method of using same |
| 04/01/1993 | WO1993005870A1 Pump assembly |
| 04/01/1993 | DE4132456A1 Radial piston machine - has pistons located in housing bore and with domes on stroke ring which is movable in recess of housing in longitudinal direction of piston axes. |
| 03/31/1993 | EP0534649A1 Gas compressor having a variable-volume clearance pocket |
| 03/31/1993 | EP0534067A2 Hydrostatic machine with drainage for leaking oil |
| 03/31/1993 | CN1070454A Scroll type compressor |
| 03/30/1993 | US5198197 Apparatus and method for supercritical fluid extraction |
| 03/30/1993 | US5197864 On-off pressure cutoff control for a variable displacement hydraulic pump |
| 03/30/1993 | US5197860 Hydraulic apparatus for construction machines |
| 03/30/1993 | US5197859 Well pump system |
| 03/27/1993 | CA2079047A1 Gas compressor having a variable-volume clearance pocket, and means for varying a clearance pocket in a gas compressor |
| 03/27/1993 | CA2078084A1 Gear pump valving system |
| 03/25/1993 | DE4131095A1 Pumpenanordnung Pump assembly |
| 03/25/1993 | DE4131032A1 Radial piston pump driven by eccentric - uses valve with interchangeable ball to vary delivery flow |
| 03/24/1993 | EP0532756A1 Device for and method of controlling vehicle for loading work |
| 03/23/1993 | US5195874 Multistage compressor |
| 03/17/1993 | EP0532299A1 System controls |
| 03/16/1993 | US5193987 Scroll type compressor |
| 03/13/1993 | CA2078046A1 System controls |
| 03/09/1993 | US5192196 Flow control orifice for parallel flow fluid supply to power steering gear |
| 03/09/1993 | US5192195 Scroll type compressor with separate control block |
| 03/04/1993 | WO1993004286A1 Capacity control for screw compressors |
| 03/04/1993 | WO1993004285A1 Method for monitoring fluid flow from a volumetric pump |
| 03/04/1993 | WO1993004284A1 Detecting occlusion of proximal or distal lines of an iv pump |
| 03/04/1993 | DE4127767A1 Eccentricity adjustment for hydraulic piston machine - has slide and guide rotating in adjusting lever to give adjustment not rotating with shaft. |
| 03/04/1993 | CA2113474A1 Detecting occlusion of proximal or distal lines of an iv pump |
| 03/04/1993 | CA2113473A1 Method for monitoring fluid flow from a volumetric pump |
| 03/03/1993 | EP0528888A1 Method for dampening vibrations in hydraulic systems. |
| 03/02/1993 | US5190446 Pump control method and poppet valve therefor |
| 03/02/1993 | US5190445 Variable capacity pump controller of hydraulically driven wheel |
| 03/02/1993 | US5190443 Hydropneumatic constant pressure device |
| 02/24/1993 | EP0528726A1 Process and apparatus for controlling a pumping station and modular detection device for such a station |
| 02/24/1993 | EP0528714A1 Gas booster |
| 02/24/1993 | EP0528254A2 Control arrangement for positive displacement pumps |
| 02/23/1993 | US5189388 Oil well pump start-up alarm |
| 02/23/1993 | US5187933 Variable displacement pump with hydraulic adjustment for controlling the delivery rate and/or the pressure with respect to at least two consumers |
| 02/18/1993 | WO1993003295A1 Torque compensated cam assembly and method |
| 02/18/1993 | CA2113472A1 Torque compensated cam assembly and method |
| 02/17/1993 | CN1069105A Sungle-cylinder, double-action type hydraulic slurry pump |
| 02/16/1993 | US5186613 Reverse phase and high discharge temperature protection in a scroll compressor |
| 02/16/1993 | US5186612 Variable pressure inlet system for hydraulic pumps |
| 02/11/1993 | DE4126400A1 Excess pressure relief for HP pump with head by=pass valve - is achieved by plunger which operates lever to open by=pass valve |
| 02/10/1993 | EP0526962A1 Two-cycle peristaltic pump with occlusion detector |
| 02/09/1993 | US5184943 Rolling diaphragm injection pump |
| 02/09/1993 | US5184939 For storing motor oil |
| 02/09/1993 | US5184507 Surface hydraulic pump/well performance analysis method |
| 02/09/1993 | CA1313557C Pump control system for instantly reversing the drive motor |
| 02/09/1993 | CA1313550C Electrically commutated, variable speed compressor control system |
| 02/04/1993 | WO1993002289A1 Pump control using calculated downhole dynagraph information |
| 02/04/1993 | WO1993002210A1 Apparatus and methods for preserving, transporting, storing, re-hydrating and delivering viable microorganisms |
| 02/03/1993 | EP0525507A2 Device for adjusting the actuator for displacement volume control of a hydrostatic machine |
| 02/02/1993 | US5183395 Compressor slide valve control |
| 02/02/1993 | US5183393 Power limiter control for a variable displacement axial piston pump |
| 01/20/1993 | CN1068175A Constant pressure variable control system for fully automatic air compression station |
| 01/19/1993 | US5180287 Method for monitoring fluid flow from a volumetric pump |
| 01/14/1993 | DE4122523A1 Piston pump with a coaxial pressure reservoir - - compact arrangement of two pistons on a common piston rod |
| 01/14/1993 | DE4122162A1 Radial piston pump with adjustable delivery - uses control valve combining pressure cut-off and pressure limiting functions |
| 01/13/1993 | EP0522236A1 Control system for valveless metering pump |
| 01/12/1993 | US5179330 Control circuit for an electrically controlled servo device |
| 01/07/1993 | EP0521743A1 Control system for the motor of a peristaltic cardiac prosthesis |
| 01/07/1993 | EP0521639A2 Unloading valve for an air compressor system |
| 01/07/1993 | DE4221286A1 Automatic switching device for motor-pump unit - uses sensor to detect overpressure at output of pump to operate microswitch |
| 01/05/1993 | US5176629 Irrigation system for use with endoscopic procedure |
| 01/05/1993 | US5176504 Apparatus for controlling hydraulic pumps for construction machine |
| 01/05/1993 | US5176428 Hydraulic pump |
| 12/30/1992 | EP0520201A1 Piston-cylinder unit for breathable gas with cylinder for capacitance measurement of displacement |
| 12/30/1992 | CN1019674B Gas pressure balance and safety device in pumping unit |
| 12/29/1992 | US5174723 High-pressure cleaning appliance |
| 12/29/1992 | US5174722 Safety shutdown circuit for pneumatic pump system |
| 12/29/1992 | CA2062411A1 Control system for valveless metering pump |
| 12/24/1992 | DE4128390C1 Rapid control appts. for fluid supply installation - has controller connected via digital communication line to pump motor regulators which provide setting signals for frequency converters |
| 12/23/1992 | WO1992022748A1 Programmable high pressure intensifier |
| 12/23/1992 | EP0519580A2 Rotary compressor |
| 12/23/1992 | EP0519378A1 Dual-mode control for hydrostatic transmission |
| 12/23/1992 | CN2125733U Numerical controlling power device of beam oil pump |
| 12/23/1992 | CN2125732U Piston type air compression engine |
| 12/22/1992 | USRE34148 Scroll type compressor with variable displacement mechanism |
| 12/22/1992 | US5173188 Automated extractions |
| 12/22/1992 | US5173032 Non-clutch compressor |
| 12/22/1992 | US5173031 Delivery flow and pressure controlling device for a hydrostatic pump |
| 12/22/1992 | US5172956 Hydraulic system for a motor vehicle brake system having a pump with pulsation reduction |
| 12/22/1992 | US5172563 Apparatus for controlling automobile air-conditioner |
| 12/20/1992 | CA2065165A1 Gear pump having internal bypass valve |
| 12/16/1992 | EP0518265A1 Electronic regulator for gasoline engine driven piston paint pumps |
| 12/16/1992 | CN2125026U Diaphragm gas compressor |
| 12/16/1992 | CN1067096A Slant plate type combressor with varibk displacement mechanism |
| 12/15/1992 | US5171137 Valve for a hermetic refrigeration compressor |
| 12/15/1992 | US5170625 Control system for hydraulic pump |
| 12/15/1992 | CA2044704A1 Programmable high pressure intensifier |
| 12/10/1992 | DE4118869A1 Control system for hydrostatic machines arranged in parallel - has first input pressure system with second making comparison of quantity of measuring element which adjusts pre-control valve |
| 12/10/1992 | DE4118532A1 Water supply system control - with membrane valve and air pressure vessel connected to manometer regulating pump drive |
| 12/08/1992 | US5169294 Pressure ratio responsive unloader |
| 12/08/1992 | US5168893 Block and bleed valve |
| 12/06/1992 | CA2070236A1 Motor feedback control process and device for a peristaltic cardiac prothesis |
| 12/02/1992 | EP0516196A2 Variable-discharge high pressure pump |
| 12/02/1992 | EP0515639A1 Hydraulic system. |
| 12/01/1992 | US5167495 Reciprocating hydraulic pump |
| 12/01/1992 | US5167493 Positive-displacement type pump system |
| 12/01/1992 | US5167491 High to low side bypass to prevent reverse rotation |