| Patents for F04B 51 - Testing machines, pumps, or pumping installations (2,128) |
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| 12/04/2001 | US6324913 Method for determining the operating speed, working pressure and pivot angle of an axial piston unit for a hydrostatic drive mechanism |
| 11/22/2001 | US20010043873 Reciprocating pump |
| 11/20/2001 | US6318167 Volumetric test stand cylinder monitor/controller |
| 10/18/2001 | US20010031944 Drug pump systems and methods |
| 10/16/2001 | US6302653 Methods and systems for detecting the presence of a gas in a pump and preventing a gas from being pumped from a pump |
| 10/10/2001 | CN2453157Y Means for monitoring rotating body |
| 09/25/2001 | US6293758 Peristaltic pump provided with a pressure measurement device to monitor the condition of the hose |
| 09/12/2001 | EP1131559A1 Apparatus and method for detection of a leak in a pump membrane |
| 09/07/2001 | WO2001065232A1 Force sensor assembly for an infusion pump |
| 09/05/2001 | EP1129288A1 Detecting obstructions in enteral/parenteral feeding tubes and automatic removal of clogs therefrom |
| 09/04/2001 | US6283719 Detecting obstructions in enteral/parenteral feeding tubes and automatic removal of clogs therefrom |
| 07/11/2001 | CN1303467A Diagnosing system for fluid machinery |
| 06/20/2001 | EP0871505B1 Automatic infusion pump tester |
| 06/05/2001 | US6241704 Drug pump systems and methods |
| 04/24/2001 | US6223130 Apparatus and method for detection of a leak in a membrane of a fluid flow control system |
| 04/18/2001 | EP1092131A1 Determining when fluid has stopped flowing within an element |
| 01/31/2001 | EP1072795A1 Diagnosing system for fluid machinery |
| 01/17/2001 | EP1069312A1 Method and device for the evalution of a hydraulic system |
| 01/04/2001 | DE19927961A1 Determining operating revolution rate, working pressure, pivot angle for axial piston machine involves frequency analysis of detected sound in solid, liquid or air signal from machine |
| 12/28/2000 | CA2309523A1 Wireless pump jack dynamometer |
| 11/08/2000 | CN2405038Y Testing means for beam oil pumping installation during working |
| 10/18/2000 | CN2401709Y Work state intelligent monitoring instrument for oil well pump |
| 10/10/2000 | CA2066581C Computer controlled metering pump |
| 10/04/2000 | CN2399532Y Frequency conversion shield electrical pump rotation monitor |
| 09/26/2000 | US6123686 Systems and methods for cassette identification for drug pumps |
| 09/06/2000 | CN2395055Y Multifunction complex test diagnostic instrument for oil pumping unit |
| 07/27/2000 | DE19902259A1 Montageverfahren Assembly method |
| 07/26/2000 | EP1022460A2 Mounting method |
| 07/25/2000 | US6092370 Apparatus and method for diagnosing the status of specific components in high-pressure fluid pumps |
| 07/12/2000 | EP1018347A2 Systems and methods for communicating with ambulatory medical devices such as drug delivery devices |
| 07/05/2000 | EP1015765A2 Temperature control system in a high pressure pump for failure detection of valves and plunger seal |
| 05/31/2000 | EP1004011A1 Method for operating a helium leak indicator and the application of this method to helium leak indicators |
| 05/25/2000 | WO2000029749A1 Apparatus and method for detection of a leak in a pump membrane |
| 05/25/2000 | CA2650669A1 Apparatus and method for detection of a leak in a pump membrane |
| 05/23/2000 | US6065941 System for measuring when fluid has stopped flowing within a line |
| 05/11/2000 | WO2000026537A1 Detecting obstructions in enteral/parenteral feeding tubes and automatic removal of clogs therefrom |
| 05/02/2000 | US6055851 Apparatus for diagnosing failure of hydraulic pump for work machine |
| 04/05/2000 | CN2372482Y All-purpose tester for beam pumping unit |
| 03/28/2000 | US6041801 System and method for measuring when fluid has stopped flowing within a line |
| 02/15/2000 | US6024539 Systems and methods for communicating with ambulatory medical devices such as drug delivery devices |
| 01/19/2000 | EP0972937A2 Peristaltic pumps |
| 01/13/2000 | WO2000002016A1 Determining when fluid has stopped flowing within an element |
| 01/05/2000 | CN2357155Y Eccentric detecting element for internal and external magnetic rotor of magnetic pump |
| 01/05/2000 | CN2357154Y Wireless loading displacement integrated sensor for primary instrument |
| 12/01/1999 | CN2351593Y Hydraulic pump ram components technological parameter comprehensive survey meter |
| 11/30/1999 | US5992222 High pressure pump system and method of operation thereof |
| 11/03/1999 | EP0635094B1 Scroll machine |
| 10/28/1999 | DE19914606A1 Arrangement for testing hydrostatic displacement units in the operating state, esp. pumps and motors |
| 10/14/1999 | WO1999051883A1 Diagnosing system for fluid machinery |
| 08/24/1999 | US5943633 Automatic infusion pump tester |
| 08/10/1999 | US5935106 Occlusion detection system for an infusion pump |
| 08/10/1999 | US5935099 Drug pump systems and methods |
| 06/03/1999 | WO1999014498A3 Temperature control system in a high pressure pump for failure detection of valves and plunger seal |
| 06/01/1999 | US5908982 Test apparatus for rotary drive |
| 05/06/1999 | WO1999022139A1 Pressure calibration pump apparatus |
| 04/28/1999 | EP0710199B1 Testing and speed control of electric motors in vehicles having electronically controlled braking systems |
| 04/07/1999 | CN2313078Y Testing table for oil-jetting pump of diesel engine |
| 03/25/1999 | WO1999014498A2 Temperature control system in a high pressure pump for failure detection of valves and plunger seal |
| 03/02/1999 | US5876370 Intermittent fluid delivery apparatus and method |
| 02/25/1999 | WO1999009387A1 Method for operating a helium leak indicator and the application of this method to helium leak indicators |
| 02/18/1999 | DE19735250A1 Method to operate helium leak detector |
| 01/27/1999 | CN2305502Y Prepressing leakage measurer for double isolation sleeve of magnetic pump |
| 01/05/1999 | US5856929 Integrated systems for testing and certifying the physical, functional, and electrical performance of IV pumps |
| 10/21/1998 | EP0871505A1 Automatic infusion pump tester |
| 10/08/1998 | WO1998044260A1 Device for checking power and working machines |
| 10/07/1998 | EP0727016B1 Method of determining the operating condition of a hydraulic device |
| 10/01/1998 | DE19713358C1 Vorrichtung zum Prüfen von Kraft- und Arbeitsmaschinen und Verfahren zum Koppeln von Kraft- und Arbeitsmaschinen mit einer solchen Vorrichtung Apparatus for testing engines and machines and method for coupling of engines and machines with such a device |
| 09/22/1998 | US5811947 Testing and speed control of electric motors in vehicles having electronically controlled braking systems |
| 09/22/1998 | US5810771 Systems and methods for automated testing of medical equipment |
| 08/25/1998 | CA2040067C Method and apparatus for analyzing the operating condition of a machine |
| 08/04/1998 | US5788669 Pump tracking system |
| 07/29/1998 | CN2286807Y Microcomputer control device for oil table frame of reciprocating compressor |
| 05/27/1998 | EP0843563A1 Systems and methods for cassette identification for drug pumps |
| 04/21/1998 | US5742519 Integrated systems for testing and certifying the physical, functional, and electrical performance of IV pumps |
| 02/19/1998 | WO1998006946A1 Apparatus for diagnosing failure of hydraulic pump for work machine |
| 02/10/1998 | US5717603 Integrated test station for testing liquid flow and electrical safety characteristics of IV pumps |
| 01/21/1998 | EP0819851A2 Control device for a supplying pomp or the like |
| 01/07/1998 | EP0816679A1 Method and device for the early detection of faults in pumps |
| 12/09/1997 | US5695473 Occlusion detection system for an infusion pump |
| 12/09/1997 | US5694808 For pumping incompressible media |
| 12/09/1997 | CA2065831C Slant plate type compressor with variable displacement mechanism and method of controlling the capacity thereof |
| 11/13/1997 | DE19618498A1 Arrangement for monitoring pump in dishwasher etc. |
| 10/02/1997 | DE19613042A1 Device for testing the stopping behaviour for hydraulic machines especially hydraulic pumps |
| 10/01/1997 | EP0798558A2 Plunger pump for a high performance liquid chromatograph |
| 09/23/1997 | US5669877 Systems and methods for automated testing of medical equipment |
| 09/18/1997 | DE19625947C1 Pump-operating fault detection method |
| 09/10/1997 | EP0793591A1 Method of detecting an inoperable pump motor in an anti-lock braking system |
| 08/19/1997 | US5658250 For infusing fluid into a patient |
| 07/17/1997 | WO1997025083A1 Automatic infusion pump tester |
| 07/15/1997 | US5647854 Base plate for a drug pump |
| 06/24/1997 | US5641899 Method of checking for purge flow in an evaporative emission control system |
| 06/18/1997 | CN2256473Y Hydraulic driven metering pump |
| 06/04/1997 | EP0496803B1 Computer controlled metering pump |
| 05/07/1997 | EP0710327B1 High pressure pump system and method of operation thereof |
| 04/17/1997 | DE19539395A1 Electrically driven liquid pump e.g. for wet cleaning machine |
| 04/16/1997 | CN1147638A Comprehensive motor and water pump test system |
| 03/04/1997 | US5608650 Systems and methods for testing pump flow rates |
| 12/04/1996 | EP0744973A1 Systems and methods for communicating with ambulatory medical devices such as drug delivery devices |
| 08/21/1996 | EP0727016A1 Method of determining the operating condition of a hydraulic device |
| 08/07/1996 | CN2232497Y Inflater type low-pressure safety valve pressure corrector |