| Patents for F04B 51 - Testing machines, pumps, or pumping installations (2,128) |
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| 07/02/1996 | US5531698 Optical reflection systems and methods for cassette identification fordrug pumps |
| 07/02/1996 | US5531697 Systems and methods for cassette identification for drug pumps |
| 06/27/1996 | DE19546741A1 Measurement adaptor for air conditioning compressor |
| 05/30/1996 | WO1996015929A1 Method of detecting an inoperable pump motor in an anti-lock braking system |
| 05/09/1996 | DE4438585A1 Indicating unit for indicating direction of rotation and operating condition of pump |
| 05/08/1996 | EP0710327A1 High pressure pump system and method of operation thereof |
| 05/08/1996 | EP0710199A1 Testing and speed control of electric motors in vehicles having electronically controlled braking systems |
| 03/20/1996 | CN2222818Y Dynamic parameter testing apparatus for oil pumping unit |
| 03/19/1996 | US5499530 Pneumatic tester for engine oil pumps |
| 02/29/1996 | WO1996006332A1 Systems for testing intravenous pumps |
| 02/29/1996 | CA2197885A1 Systems for testing intravenous pumps |
| 02/27/1996 | US5494343 Method of detecting an inoperable pump motor in an anti-lock braking system |
| 02/14/1996 | CN2219975Y Wireless telemeter for electric pump |
| 02/08/1996 | WO1996003168A1 Occlusion detection system for an infusion pump |
| 01/16/1996 | US5485408 Pump simulation apparatus |
| 10/26/1995 | WO1995028190A1 Systems and methods for cassette identification for drug pumps |
| 10/05/1995 | DE4410800A1 Rotation direction and status indicator for pumps |
| 09/13/1995 | EP0671619A1 Monitoring system for piston engines and compressors |
| 09/13/1995 | EP0671618A1 Monitoring system for piston engines and compressors |
| 08/08/1995 | US5439355 Method and apparatus to test for valve leakage in a pump assembly |
| 08/02/1995 | EP0635094A4 Scroll machine. |
| 08/02/1995 | CN2204341Y Testing table for submersible electric pump |
| 07/05/1995 | CN2202809Y Plunger sealing adjusting device for pressure cylinder of pressure-testing pump |
| 06/21/1995 | CN1029023C Slant plate type combressor with variable displacement mechanism |
| 05/11/1995 | WO1995012761A1 Method of determining the operating condition of a hydraulic device |
| 02/22/1995 | EP0396640B1 Hydraulic braking devices with antilock or traction control device |
| 02/22/1995 | CN2190176Y Rotation monitor for shielding pumps |
| 02/09/1995 | WO1995003963A1 Testing and speed control of electric motors in vehicles having electronically controlled braking systems |
| 01/26/1995 | WO1995002764A1 High pressure pump system and method of operation thereof |
| 01/26/1995 | WO1995002426A1 Medical pump and method of programming |
| 01/25/1995 | EP0635094A1 Scroll machine |
| 10/19/1994 | CN1093772A Universal intelligent diagnostic instrument for deepwell pump oil-production well condition |
| 10/13/1994 | WO1994023203A1 Bypass flowmeter for measuring hydraulic characteristics of pumping installations |
| 10/13/1994 | DE4412003A1 Verfahren zum Herstellen einer Brennstoffpumpe für Kraftfahrzeuge A method of manufacturing a fuel pump for motor vehicles |
| 10/08/1994 | CA2120225A1 Automotive fuel pump having modular construction |
| 08/16/1994 | US5338157 Systems and methods for communicating with ambulatory medical devices such as drug delivery devices |
| 08/09/1994 | US5336053 Method of testing for leakage in a solution pumping system |
| 08/04/1994 | WO1994017307A1 Method of testing for leakage in a solution pumping system |
| 08/04/1994 | CA2152924A1 Method of testing for leakage in a solution pumping system |
| 06/22/1994 | CN2169710Y Deep well oil pump dynamic analogue test device |
| 06/08/1994 | CN2168097Y Automatic testing jig for detection of oil pump motor set |
| 04/14/1994 | DE4220831C1 Pressure infusion pump testing device - converts feed volume and feed pressure of sump into path length and force values using calibrated measuring spring |
| 03/17/1994 | WO1994005355A1 Systems and methods for communicating with ambulatory medical devices such as drug delivery devices |
| 03/03/1994 | DE4228357A1 Radial piston pump - has pressure oil intake channel, adjusted by externally accessible throttle which is formed as adjusting screw and adjusted by rotary slide |
| 02/23/1994 | CN2157334Y Idle motion testing device for pump |
| 02/08/1994 | US5285140 Gas friction pump |
| 12/22/1993 | CN2150364Y Hydraulic testing-machine pump without resonance |
| 11/23/1993 | US5263367 Method and apparatus for determining delivery amounts and rates of pumps in the medicotechnical field |
| 10/14/1993 | WO1993020332A1 Scroll machine |
| 08/04/1993 | EP0496803A4 Computer controlled metering pump |
| 06/09/1993 | CN1021129C Measuring and detecting system for volume pump and pump having this system |
| 05/27/1993 | DE4138477A1 Setting dispensing pump throughput before use - filling measurement container to defined level, measuring time, adjusting pumping rate and repeating |
| 05/04/1993 | US5207381 Calibration of fluid delivery equipment |
| 12/16/1992 | CN1067096A Slant plate type combressor with varibk displacement mechanism |
| 10/14/1992 | EP0508823A1 A slant plate type compressor with a variable displacement mechanism |
| 08/05/1992 | EP0496803A1 Computer controlled metering pump. |
| 08/05/1992 | CN2112019U Testing device for multistation oil-well pump |
| 07/15/1992 | CN2110104U Power consumpting test device for electric oil pump |
| 07/09/1992 | WO1992011457A1 Method and apparatus for analyzing the operating condition of a machine |
| 05/27/1992 | EP0487507A2 Method for monitoring a hydraulic brake system and a brake system for carrying out this method |
| 05/12/1992 | US5112196 Method and apparatus for analyzing the operating condition of a machine |
| 04/22/1992 | CN2102387U Load indicator of oil pump |
| 11/13/1991 | CN2088612U Dual-cylinder large flow electric pressure test pump |
| 10/08/1991 | US5056036 Computer controlled metering pump |
| 10/01/1991 | US5052897 Compressor and method of detecting quantity of mixture of coolant and lubricant in the compressor |
| 09/10/1991 | US5047950 Method and an apparatus for measuring the flow in oscillating displacement pumps |
| 09/05/1991 | DE4104708A1 Testing liq. pump for various section heights - using closed feed system and evacuating tank to simulate suction heights and deriving characteristics and functional data |
| 07/11/1991 | DE4000873C1 Testing device for pressure infusion appts. - has measured value pick=up with electronic path measurer for piston and force sensor |
| 07/03/1991 | EP0434939A1 Drag vacuum pump |
| 06/05/1991 | CN2078384U New water valve for teste pressure pump |
| 05/14/1991 | US5015153 Compressor cutoff control responsive to shaft position |
| 05/08/1991 | EP0426152A1 Compressor and method of detecting quantity of mixture of coolant and lubricant in the compressor |
| 04/21/1991 | WO1991006062A1 Computer controlled metering pump |
| 04/17/1991 | CN2075265U Hand testing pressure pump with double cylinder |
| 02/27/1991 | EP0414364A1 Calibration of fluid delivery equipment |
| 02/22/1991 | CA2022015A1 Calibration of fluid delivery equipment |
| 02/19/1991 | US4994984 System and device for supplying desired liquid volumes by means of a metering pump in variable flow rate condition |
| 02/05/1991 | US4990794 Sensing-measuring device for continuous determination of cavitation in dynamic pumps |
| 12/27/1990 | CA1278358C Process for determining the exact output of dispensing pumps |
| 12/26/1990 | CN2068164U Pipe type pump efficiency testing instrument |
| 11/14/1990 | EP0396640A1 process for checking the function or operatability of a device or of an installation or components thereof. |
| 11/14/1990 | CN2065684U Multi-level shelf type pressure-test pump |
| 10/31/1990 | CN1010241B Regulator for cavitation test of pump |
| 09/05/1990 | CN2061619U Hydrodynamic pressure testing pump |
| 04/17/1990 | US4918585 Maintenance reminder system for a pump |
| 03/28/1990 | CN2055195U Experiment console for teaching and studying hydrodynamics and pump characteristic |
| 03/08/1990 | WO1990002066A1 Process for checking the function or operatability of a device or of an installation or components thereof |
| 03/01/1990 | DE3828933A1 Method for monitoring a hydraulic system |
| 03/01/1990 | DE3828932A1 Method for monitoring the operation of a hydraulic, pneumatic, mechanical and/or electrical device |
| 03/01/1990 | DE3828931A1 Method for monitoring the function of a brake system |
| 02/13/1990 | US4899582 Air system analyzer |
| 02/07/1990 | EP0353520A2 Method of and apparatus for detecting shaft position of compressor for air conditioner, and control apparatus for stopping air compressor by using shaft position detecting apparatus |
| 10/31/1989 | CA1262513A1 Method of observing the pumping characteristics of a positive displacement pump and a pump enabling the method to be implemented |
| 08/09/1989 | CN2042523U Automatic measuring instrument of water-pump efficiency |
| 08/02/1989 | CN1034412A Regulator for cavitation test of pump |
| 06/27/1989 | US4842491 Apparatus and method of determining compressor structural resonant frequency |
| 05/23/1989 | US4832575 Automatic test system for check valve closure in pump for liquid chromatography system |
| 03/29/1989 | CN2035005U Double-cylinder electric pressure-testing pump with flywheel and planetary gear reducer |
| 01/17/1989 | US4798086 Test bench for testing hydraulic pumps and motors |
| 01/04/1989 | CN2030266U Energy-saving protection device for air press |