| Patents for F04D 7 - Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts (4,105) |
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| 05/02/1995 | US5411367 Centrifugal slurry pump |
| 04/26/1995 | EP0649987A1 A pump housing for a rotary pump |
| 04/26/1995 | CN2195636Y Non-blocking device for pump |
| 04/20/1995 | WO1995010353A1 Centrifugal liquid pump with internal gas injection assembly |
| 04/12/1995 | CN2194425Y Agriculture manure pumping and applying machine |
| 04/05/1995 | CN1028125C Self-suction impurity pump |
| 04/04/1995 | US5403442 Pumping with deaerating centrifugal pump controls foaming on heat exchanging evaporator surfaces |
| 04/04/1995 | US5402876 Apparatus and method for transporting and metering particulate materials into fluid pressure |
| 03/30/1995 | WO1995008714A1 Turbo-machine with reduced attrition |
| 03/30/1995 | DE4431947A1 Fluid flow engine for particle containing medium - has wall surfaces formed to direct medium flow in regions of higher rotary fluid flow |
| 03/29/1995 | EP0645177A1 Device for introducing gas in a liquid |
| 03/28/1995 | US5401143 Multi-stage automotive fuel pump having angeled fuel transfer passage |
| 03/22/1995 | CN2192749Y Submersible slurry pump |
| 03/16/1995 | DE4330838A1 Pumping station for liquids |
| 03/14/1995 | US5397220 Canned motor pump |
| 03/09/1995 | WO1995006610A1 Transporting and metering particulate material |
| 03/08/1995 | CN2191303Y Flotation type corrosion-proof pump |
| 03/02/1995 | WO1995006188A1 Apparatus for intermittent transfer of fluids having a vapor trap seal |
| 02/24/1995 | CA2129468A1 Apparatus for intermittent transfer of fluid |
| 02/09/1995 | WO1995004218A1 Pump with fluid bearing |
| 02/02/1995 | DE4325549A1 Centrifugal pump |
| 01/31/1995 | US5385447 Axial flow pump for debris-laden oil |
| 01/31/1995 | US5385443 Centrifugal liquid pump with internal gas injection assembly |
| 01/26/1995 | WO1995002768A1 Centrifugal pump |
| 01/18/1995 | EP0633982A1 Apparatus for pumping liquids. |
| 01/17/1995 | US5381886 Apparatus and method with improved drive force capability for transporting and metering particulate material |
| 01/17/1995 | CA1333972C Method and apparatus for separating gas with a pump from a medium being pumped |
| 01/10/1995 | US5380162 Split driveshaft pump for hazardous fluids |
| 01/05/1995 | DE4320414A1 Apparatus for avoiding ferric encrustation in pumps and systems |
| 01/03/1995 | US5378121 Pump with fluid bearing |
| 12/28/1994 | CN1096859A Pump impeller and centrifugal slurry pump incorporating same |
| 12/22/1994 | WO1994029599A1 Apparatus for handling slurry |
| 12/22/1994 | WO1994029202A1 Grooved disk apparatus |
| 12/21/1994 | CN2185817Y Eddy current pump |
| 12/14/1994 | EP0628723A1 Self-cooling integrated pump for cryogenic liquid |
| 12/13/1994 | US5372308 Washing system, especially for windshields of a motor vehicle |
| 12/13/1994 | CA1333457C Pump with separate fluidizing vaned shaft adjacent impeller |
| 12/12/1994 | CA2123823A1 Self-cooled and removable integrated cryogenic liquid pump |
| 12/08/1994 | DE4318122A1 Unit for delivering fuel from a fuel tank to the internal combustion engine of a motor vehicle |
| 12/01/1994 | DE4413940A1 Sludge pump |
| 11/24/1994 | WO1994026416A1 Readily installed universal sewage grinder pump |
| 11/22/1994 | US5366347 Suspension pump with built-in variably eccentric liquid ring pump |
| 11/10/1994 | DE4315234A1 Process for producing liquid mixtures from various individual components |
| 11/09/1994 | EP0623750A1 Pump of the axial type |
| 10/18/1994 | US5356280 Pump for particulate solids |
| 10/18/1994 | US5355993 Grooved disk drive apparatus and method for transporting and metering particulate material |
| 10/12/1994 | EP0619431A1 Pump system and method for operating the same |
| 10/12/1994 | CN2179476Y Full plastic magnetic sealed acid-proof pump |
| 10/11/1994 | CA1332386C Transition duct for centrifugal fan |
| 10/05/1994 | CN1093148A An apparatus for supply and circulation of cooling water to and through a sealing portion of a rotary shaft of a pump |
| 10/04/1994 | US5352088 Pump housing device |
| 09/29/1994 | DE4309697A1 Method for hydrodynamic conveying of oxidation-sensitive liquids, and installation and pump therefor |
| 09/28/1994 | CN2178292Y High-temp. acid-proof corrosion resisting pump |
| 09/28/1994 | CN2178291Y Pump adapted for handling corrosive fluid |
| 09/28/1994 | CN2178290Y Non-plugging self-priming centrifugal impurity pump |
| 09/21/1994 | CN2177824Y Special wear-proof mortar pump |
| 09/06/1994 | US5344163 Dynamic shaft seal for pumping fibrous slurries |
| 08/30/1994 | CA2009905C High density grout pump |
| 08/24/1994 | CN1091182A Carbon anticorrosion pump |
| 08/23/1994 | US5340272 Multi-stage centrifugal pump incorporating a sealed thrust bearing |
| 08/18/1994 | WO1994018457A1 Apparatus for pumping liquids |
| 08/04/1994 | WO1994017242A1 Process and apparatus for separating fibres from water |
| 08/02/1994 | US5333991 Thermal fatigue prevention apparatus for high temperature pump |
| 07/26/1994 | CA1330908C Fluid flow machine |
| 07/19/1994 | US5330328 Submersible molten metal pump |
| 07/07/1994 | WO1994015102A1 Pump impeller and centrifugal slurry pump incorporating same |
| 07/05/1994 | US5326226 Continuous curve high solidity hydrofoil impeller |
| 06/28/1994 | US5324166 Apparatus and method for pumping a liquid |
| 06/28/1994 | US5323914 Method of and apparatus for separating heavy impurities from fiber suspensions in connection with pumping |
| 06/22/1994 | EP0602576A1 Multistage pump provided with modular internal components made of wearproof materials |
| 06/08/1994 | EP0600821A1 Use of a multi-stage propellor pump for pumping fibrous suspension concentrates and propellor pump specially adapted for this operation |
| 06/08/1994 | EP0600820A1 Pump, especially for concentrated fibrous suspensions |
| 06/03/1994 | CA2110521A1 Apparatus for pumping medium consistency pulp |
| 06/01/1994 | EP0599204A1 Submersible pump assembly |
| 06/01/1994 | CN2167220Y Mud-proof submersible pump |
| 05/31/1994 | US5316449 Motor-driven pump with reaction turbine |
| 05/25/1994 | CN2166262Y Closed impeller plastic anti-corrosion centrifugal pump |
| 05/18/1994 | EP0597815A1 A pump housing device |
| 05/18/1994 | CN2165265Y Convenient stainless steel drink pump |
| 05/11/1994 | WO1994010448A1 Apparatus for pumping a slurry |
| 05/11/1994 | CN2164475Y Abrasion-resistant sand pump |
| 05/10/1994 | US5310316 Impeller for a propeller pump |
| 05/04/1994 | CN2163889Y Sand pump |
| 04/26/1994 | US5306124 Slurry pump and seal system |
| 04/12/1994 | US5303275 Forced-circulation reactor with fluidic-diode-enhanced natural circulation |
| 04/12/1994 | US5302082 Improved efficiency grinding pump for slurry |
| 03/16/1994 | EP0586800A1 Molten metal pump with vaned impeller |
| 03/08/1994 | US5291970 Entrainment pump for viscous fluids, particularly suitable for lubricating dobbies and looms |
| 03/03/1994 | WO1994004827A1 Multi-stage centrifugal pump incorporating a sealed thrust bearing |
| 02/23/1994 | CN2157337Y Improved magnetic driven pump |
| 02/15/1994 | US5286163 Molten metal pump with filter |
| 02/08/1994 | US5284417 Automotive fuel pump with regenerative turbine and long curved vapor channel |
| 02/02/1994 | CN2154924Y Multi-staged corrosion resistant mini pump |
| 01/20/1994 | WO1994001218A1 Grinding pump |
| 01/12/1994 | CN2152901Y Sludge cleaning device for shallow well |
| 01/06/1994 | WO1994000693A1 Improved centrifugal pump and systems utilizing same |
| 01/05/1994 | CN2152100Y Slag slurry pump |
| 12/28/1993 | CA1325552C Self-priming centrifugal pump for dangerous, particularly radio-active liquids |
| 12/21/1993 | CA1325360C Method and apparatus for pumping high consistency pulp |
| 12/08/1993 | CN2148839Y Carbon corrosion resisting pump |