| 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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| 12/08/1993 | CN2148838Y Liquid pump |
| 12/07/1993 | US5267830 Pump for abrasive materials |
| 11/25/1993 | WO1993023135A1 Apparatus and process for pumping and separating a mixture of gas and liquid |
| 11/16/1993 | CA1324371C Unit apt to act upon the flow |
| 11/11/1993 | WO1993022563A1 Centrifugal pump, intended in particular for gas containing fluids, and method of operating such a pump |
| 11/09/1993 | US5259829 Centrifugal separating apparatus |
| 11/09/1993 | CA1324033C Method and apparatus for pumping high-consistency fiber suspension |
| 10/27/1993 | CN1077782A Two-phase flow centrifugal pump |
| 10/26/1993 | US5256032 Centrifugal chopper pump |
| 10/26/1993 | CA2002384C Fluidizing centrifugal pump |
| 10/20/1993 | CN1022503C Making method for corrosion resisting pump and overflow element |
| 10/12/1993 | CA2013132C Pump for and method of separating gas from a fluid to be pumped |
| 10/05/1993 | CA2005118C Drainage pump |
| 09/29/1993 | CN2142895Y Mechanical speed-changing drive device for slurry pump of drilling machine |
| 09/29/1993 | CN1022260C Centrifugal pump housing constructed of sheet metal |
| 09/28/1993 | US5248223 Fuel pump with anti-reversion inlet |
| 09/07/1993 | US5242124 Apparatus for conveying, comminuting and mixing materials comprising/not comprising solid matter |
| 09/01/1993 | EP0475985B1 Method of and apparatus for separating heavy impurities from fiber suspensions in connection with pumping |
| 08/31/1993 | US5240621 Centrifuging |
| 08/31/1993 | US5240372 Centrifugal pumps and systems utilizing same |
| 08/25/1993 | CN2140981Y Metal-ceramic combined wear pump case |
| 08/24/1993 | US5238363 Dual suction vertical pump with pendant auger |
| 08/24/1993 | US5238117 Mineral processing screen separator |
| 08/04/1993 | EP0553918A1 Pump device for a viscous fluid |
| 08/04/1993 | CN1074979A Miniature full-sealed corrosion-resistant plastic pump |
| 07/28/1993 | EP0553002A1 Protecting device for a primary pump |
| 07/20/1993 | US5228831 Sheet metal centrifugal pump casing |
| 07/20/1993 | US5228829 Method and apparatus for dividing flow of high-consistency fiber suspension |
| 07/07/1993 | EP0537146A4 Rotary disc pump |
| 07/07/1993 | CN1074016A Entrainment pump for viscous fluids, particularly suitable for lubricating dobbles and looms |
| 07/06/1993 | US5224817 Shunt flow turbopump with integrated boosting |
| 06/30/1993 | CN2137296Y Transmission pump for use in sanitation |
| 06/24/1993 | WO1993011980A1 Washing system, in particular for motor vehicle window panes |
| 06/17/1993 | DE4140731A1 Waschanlage, insbesondere fuer scheiben eines kraftfahrzeugs Wash, especially for slices of a motor vehicle |
| 06/16/1993 | CN2136348Y Charge plugging-up avoiding rotor |
| 06/10/1993 | WO1993011359A1 Pump with built-in vacuum pump |
| 06/02/1993 | EP0544621A1 Pump for particulate solids |
| 06/02/1993 | EP0543853A1 A system for simultaneously degassing and pumping a liquid |
| 06/02/1993 | EP0538409A4 Fuel-bundle inversion for dual-phase nuclear reactors |
| 06/01/1993 | US5215430 Ignition-source free fuel pump |
| 05/26/1993 | EP0542835A1 Method and apparatus for improving flotation separation |
| 05/26/1993 | CN2134514Y Anti-leak, corrosion-resisting centrifugal pump |
| 05/19/1993 | EP0541883A1 Pump driven by reaction turbine |
| 05/19/1993 | CN2133691Y Vertical waste water pump |
| 05/15/1993 | CA2078849A1 Motor-driven pump with reaction turbine |
| 05/11/1993 | US5209650 Integral motor and pump |
| 05/11/1993 | US5209641 Apparatus for fluidizing, degassing and pumping a suspension of fibrous cellulose material |
| 05/04/1993 | US5207560 Fluid flow machine with variable clearances between the casing and a fluid flow guiding insert in the casing |
| 04/28/1993 | EP0538409A1 Fuel-bundle inversion for dual-phase nuclear reactors |
| 04/28/1993 | EP0538407A1 Nuclear reactor with bi-level core |
| 04/28/1993 | EP0538400A1 Reactor-core isolation cooling system with dedicated generator |
| 04/28/1993 | CN2130941Y Durable pulp pump |
| 04/21/1993 | EP0537146A1 Rotary disc pump. |
| 04/20/1993 | US5204053 Bi-level fuel management method for boiling-water nuclear reactor |
| 04/20/1993 | US5203681 Submerisble molten metal pump |
| 04/20/1993 | CA1316397C Centrifugal pump |
| 04/14/1993 | EP0537128A2 Pump |
| 04/13/1993 | US5202084 Bi-level reactor including steam separators |
| 04/10/1993 | CA2077582A1 Pump |
| 04/07/1993 | EP0535726A1 Entrainment pump for viscous fluids, particularly suitable for lubricating dobbies and looms |
| 04/07/1993 | EP0535365A1 Centrifugal pump |
| 04/06/1993 | CA1315600C Medium consistency pump with self-feeding |
| 04/01/1993 | DE4138612C1 Appts. for continuously stirring and cleansing liq. contg. solids - includes sepn. pump with centrifugal wheel, cylindrical pump chamber with 2 or more outlets, etc. |
| 03/30/1993 | CA1315176C Device for automatic circulation in a waste water pump station |
| 03/17/1993 | CN2128317Y Acid- and alkali-resisting magnet-driven centrifugal pump without high temp during idle running |
| 03/17/1993 | CN1069910A Device for transporting, conninuting and mixing material of waiting transporting of containing and non-containing solid content |
| 03/04/1993 | WO1993004283A1 A submersible molten metal pump |
| 03/04/1993 | DE4128281A1 Pump for handling domestic sewage - has disc with cutting blades arranged in front of pump inlet |
| 03/03/1993 | EP0530163A1 Non-clogging pump |
| 02/24/1993 | CN2127437Y Supper-minisize, wholly sealed, corrosion resistant plastic pump |
| 02/17/1993 | EP0527630A1 Nuclear reactor comprising steam separator and two axially arranged cores |
| 02/17/1993 | EP0527227A1 Pump having spiral blades |
| 02/16/1993 | US5186604 Electro-rheological disk pump |
| 02/03/1993 | EP0525596A1 Device for conveying, grinding and mixing of material to be conveyed with or without solid content |
| 01/26/1993 | US5181841 Sewage pump |
| 01/26/1993 | US5181828 Molten metal pump |
| 01/24/1993 | CA2074003A1 Apparatus for conveying, comminuting and mixing materials comprising/not comprising solid matter |
| 01/21/1993 | DE4130752C1 Self-priming immersion pump - has central chamber and ring chamber and tangentially aligned suction pipe |
| 01/14/1993 | DE4111713A1 Fluidpumpe Fluid pump |
| 01/07/1993 | DE4121600A1 Submerged/diving pump assembly - has flow turbulence producing device in bottom facing inlet collar allowing sand to be pumped |
| 12/30/1992 | EP0217847B1 Pump or compressor unit |
| 12/23/1992 | CN1019594B Lining cast process for large dredge pump |
| 12/16/1992 | EP0518593A1 Forced-circulation reactor with enhanced flow in natural circulation operation |
| 12/16/1992 | CN2125030U Pump for handling starch thick liquid |
| 12/15/1992 | US5171126 Centrifugal pump with an annular shroud |
| 12/15/1992 | US5170936 Heat pump type heating apparatus and control method thereof |
| 12/10/1992 | DE3546723C2 Centrifugal impeller pump for concentrated nitric acid |
| 12/09/1992 | CN2124329U Centrifugal pump with seal cartridge centre shaft lined with fluoric compound |
| 12/09/1992 | CN2124328U 金属衬里泵 Metal lined pumps |
| 12/02/1992 | CN2123629U Load balance device for single passage pump |
| 11/25/1992 | CN2122952U Centrifugal pump for ships |
| 11/24/1992 | US5165858 Molten metal pump |
| 11/18/1992 | CN1066319A Impeller annular seal |
| 11/11/1992 | EP0512190A1 Clog resistant pump |
| 11/10/1992 | US5162097 Steam cooled nuclear reactor with bi-level core |
| 10/29/1992 | WO1992018774A1 Pump for fluids |
| 10/28/1992 | CN2120207U Submersible cutting pump |
| 10/28/1992 | CN2120206U Efficient subliquid slurry proof pulp pump |
| 10/28/1992 | CN2120205U Flow regulating centrifugal type impurity pump |
| 10/21/1992 | CN1065512A Rotary slurry pump |