| Patents for F04D 15 - Control, e.g. regulation, of pumps, pumping installations, or systems (4,967) |
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| 02/24/1999 | EP0897476A1 Hybrid magnetically suspended and rotated centrifugal pumping apparatus and method |
| 02/10/1999 | CN1041999C Readily installed universal sewage grinder pump |
| 02/04/1999 | DE19733201A1 Circulating domestic water supply |
| 01/27/1999 | EP0893582A2 Method for controlling a coolant pump of an internal combustion engine |
| 01/27/1999 | CN1206451A 泵组合体 Pump assembly |
| 01/26/1999 | US5863185 Liquid flow apparatus |
| 01/21/1999 | WO1999002245A1 Method for operating a cross-flow filtration installation and installation for carrying out said method |
| 01/21/1999 | CA2265620A1 Method for operating a cross-flow filtration installation and installation for carrying out said method |
| 01/13/1999 | CN2303955Y Domestic electronic-controlled automatic water-supply pump |
| 12/30/1998 | WO1998059174A1 Electronic control method for drain pumps used in electrical home appliances |
| 12/30/1998 | EP0887553A1 Submersible pump |
| 12/30/1998 | EP0886731A1 Coolant pump for automotive use |
| 12/23/1998 | EP0823028B1 A safety pumping system |
| 12/17/1998 | WO1998057076A1 Pump protection fitting |
| 12/17/1998 | DE19724564A1 Circulation pump esp. for use with district heating hot water supply systems |
| 12/17/1998 | CA2263438A1 Pump protection fitting |
| 12/10/1998 | DE19741547A1 Submersed water pump |
| 12/10/1998 | DE19724511C1 Pumpenschutzarmatur Pump protection valve |
| 12/10/1998 | DE19723856A1 Laboratory thermostat |
| 12/03/1998 | WO1998054469A1 Mechanical seal with flushing arrangement |
| 12/01/1998 | US5844397 Downhole pumping system with variable speed pulse width modulated inverter coupled to electrical motor via non-gap transformer |
| 11/12/1998 | WO1998050700A1 Water feeder |
| 11/11/1998 | EP0877463A2 Canned pump |
| 11/10/1998 | US5833437 Bilge pump |
| 11/10/1998 | US5833434 Device for regulating the output of a verticle-axis centrifugal pump |
| 11/05/1998 | WO1998049449A1 Fluid machinery |
| 10/27/1998 | US5828287 Automatic thermal shut-off switch |
| 10/22/1998 | WO1998046879A1 Bearing and seal-free blood pump |
| 10/14/1998 | EP0870656A1 Washer pump for selectively supplying wash fluid to two areas |
| 10/14/1998 | CN1196122A Method of detecting characteristics of liquids in pipes and pump controlling |
| 09/24/1998 | DE19711185A1 Immersion motor/pump unit for pumping water |
| 09/23/1998 | EP0866228A2 Pump unit |
| 09/22/1998 | US5810771 Systems and methods for automated testing of medical equipment |
| 09/22/1998 | US5810208 Electrically powered pumping system |
| 09/17/1998 | DE19802227A1 Immersion pump with lower and upper housing sections |
| 09/16/1998 | EP0864755A2 Double pump with sequential or synchronous operation |
| 09/15/1998 | US5807067 Transtator hydraulics device |
| 09/10/1998 | DE19709598A1 Rotary liquid pump |
| 09/10/1998 | DE19709484A1 Unit for regulating coolant temperature of internal combustion engine in motor vehicle |
| 09/01/1998 | US5800120 Rotary pump apparatus |
| 08/26/1998 | EP0860611A1 Pump with temperature and speed sensor |
| 08/25/1998 | US5798454 Magnetically suspended device with function of measuring viscosity |
| 08/25/1998 | US5797996 Method for controlling the amount of water filled in a dishwashing machine |
| 08/25/1998 | US5797731 Group of full-circumferential-flow pumps and method of manufacturing the same |
| 08/25/1998 | CA2108307C High temperature resistant bearing assembly using thermally expansive and porous solid lubrication |
| 08/12/1998 | CN1190024A Measure apparatus for medical liquid |
| 08/05/1998 | EP0856666A1 Liquid delivery device, method of controlling such liquid delivery device, and liquid delivery pump |
| 08/05/1998 | EP0856323A2 Medical liquid metering device |
| 08/05/1998 | EP0856107A1 Output regulation with load sensing |
| 07/21/1998 | US5782604 Pump |
| 07/15/1998 | EP0853232A2 Sensor arrangement |
| 07/07/1998 | US5775879 For communicating energy to a multiphase effluent |
| 07/07/1998 | US5775877 Submersible motor-driven pump with float switch |
| 06/24/1998 | CN1185558A Hot water circulating pump selectively supplying hot-water through a pair of tube |
| 06/23/1998 | US5769134 Variable speed pump-motor assembly for fuel dispensing system |
| 06/17/1998 | EP0848173A1 Rotary fluid pump |
| 05/28/1998 | DE19647967A1 Pump esp. motor driven centrifugal pump with sensor determining pressure differences |
| 05/26/1998 | US5755560 Pump and combination pump and trap with snap-over mechanism and double-seal outlet valve |
| 05/20/1998 | EP0843100A1 Pump with static device for switching it on |
| 05/20/1998 | EP0842420A1 Method of detecting characteristics of liquids in pipes and pump controlling |
| 05/19/1998 | US5752785 Drainage pump station and drainage operation method for drainage pump station |
| 05/14/1998 | WO1997047884A3 Apparatus for providing pressurized liquid to a device, high speed flood cooled motor/generator therefor |
| 05/13/1998 | EP0797736B1 Pump case |
| 05/07/1998 | DE19745737A1 Warmwasser-Umwälzpumpe zum Liefern von Warmwasser selektiv durch ein Paar von Rohren Hot water circulating pump selectively for supplying hot water by a pair of tubes |
| 05/07/1998 | DE19645129A1 Cavitation protection of pump governed according to rotational speed |
| 05/06/1998 | EP0840014A1 Pumping set with a circuit enabling the saving of energy from the emergency power source |
| 04/28/1998 | US5743715 Method and apparatus for load balancing among multiple compressors |
| 04/22/1998 | EP0695222A4 Readily installed universal sewage grinder pump |
| 04/21/1998 | US5742500 Pump station control system and method |
| 04/15/1998 | EP0725752A4 Transporting and metering particulate material |
| 04/08/1998 | CN2278104Y Submerged electric pump protector |
| 04/01/1998 | EP0833436A2 AC motor control for a high speed deep well pump |
| 03/31/1998 | US5733065 Underground drainage facility, vertical-shaft multi-stage adjustable vane pump, and method of running drainage pump |
| 03/31/1998 | US5733064 Drainage water pumping station and method for operating the same |
| 03/25/1998 | EP0831236A2 Motor pump with cooled frequency converter |
| 03/18/1998 | EP0829220A2 Method for controlling the amount of water filled in a dishwashing machine |
| 03/18/1998 | EP0746684A4 Soft-start pump control system |
| 03/18/1998 | EP0715692B1 Pump-protecting valve |
| 03/10/1998 | US5725357 Magnetically suspended type pump |
| 02/17/1998 | US5718564 Centrifugal pump with adaptor for various valves |
| 02/11/1998 | EP0823028A1 A safety pumping system |
| 02/05/1998 | WO1998004833A1 Self-priming type centrifugal pump |
| 02/03/1998 | US5713729 Pump having a three-way valve |
| 01/29/1998 | DE19629614A1 Left-heart assist pump for post-operative period |
| 01/21/1998 | EP0819851A2 Control device for a supplying pomp or the like |
| 01/20/1998 | US5710466 Fully integrated magnetic micromotors and methods for their fabrication |
| 01/13/1998 | US5707211 Variable speed pump system with a hydropneumatic buffer/pressure tank |
| 01/08/1998 | WO1998000643A1 Bilge pump |
| 01/08/1998 | DE19701411C1 Pump with motor in housing |
| 01/07/1998 | EP0816729A1 Relief valve assembly |
| 01/06/1998 | US5704768 Motor pump family of centrifugal pumps |
| 12/30/1997 | US5701852 Coolant temperature control system for vehicles |
| 12/18/1997 | WO1997047884A2 Apparatus for providing pressurized liquid to a device, high speed flood cooled motor/generator therefor |
| 12/17/1997 | CN1167880A Water supply level adjuster for vertical shaft centrifugal pump |
| 12/11/1997 | WO1997046806A1 Submerged motor pump |
| 12/09/1997 | US5696493 Pedestal housing for electric connection panel for sump pump and full septic tank alarm |
| 12/09/1997 | US5696444 Monitoring system for detecting axial and radial movement of a rotating body independent of rotational position |
| 12/04/1997 | DE19719777A1 Device to limit fire hazard within a turbo machine |
| 11/27/1997 | DE19721108A1 Fuel pump used in vehicle |
| 11/27/1997 | DE19615171C1 Pump for extracting liquid specimens esp. water in e.g. reservoir or container |