| 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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| 12/22/1980 | EP0016223A4 Method and apparatus for pumping fragile articles. |
| 12/16/1980 | US4239462 Heat barrier for motor-pump aggregates |
| 12/16/1980 | US4239422 Flushing fluid for centrifugal pumps used in the pipelining of slurries |
| 11/25/1980 | US4235672 Nuclear reactor plant with pressurized water reactor secured against bursting or rupture |
| 11/18/1980 | US4234291 Wear lining |
| 11/11/1980 | CA1089322A1 Sewage pump assembly |
| 11/04/1980 | US4231719 Procedure and apparatus for degassing fuel supply pump |
| 11/04/1980 | US4231718 Fluid pump, particularly a fuel supply pump |
| 10/29/1980 | EP0018266A1 Centrifugal pump for fluid circulation |
| 10/15/1980 | EP0016825A1 Method and apparatus for pumping large solid articles. |
| 10/07/1980 | US4226574 Magnetically driven pump |
| 10/01/1980 | EP0016223A1 Method and apparatus for pumping fragile articles |
| 09/30/1980 | CA1086454A1 Grinder pump |
| 09/09/1980 | CA1085126A1 Multi-shaft screw extruder |
| 09/03/1980 | EP0015037A1 Apparatus for the gasification of coal powder |
| 08/26/1980 | US4219385 Circulating pumps of a liquid metal, generally sodium, ensuring the cooling of the core of a fast neutron reactor |
| 08/06/1980 | EP0013942A2 Centrifugal pump for liquids containing solids |
| 07/22/1980 | US4213709 Rotary processor |
| 07/15/1980 | US4212595 Air pump with primary and secondary inlet flow channels |
| 07/08/1980 | CA1081044A1 Centrifugal slurry pump and method |
| 06/10/1980 | CA1079158A1 Method and system for transferring liquid media |
| 06/03/1980 | US4205947 Method and apparatus for the ventilation of a fuel supply pump |
| 05/29/1980 | WO1980001095A1 Single vane rotodynamic impeller |
| 05/28/1980 | EP0011506A1 Single vane rotodynamic impeller |
| 05/27/1980 | US4204801 Sewage pump assembly |
| 05/15/1980 | WO1980000988A1 A wear-resisting attachment for protection of metallic members against erosion from airborne abrasive particles,and a fan blade provided with such an attachment |
| 05/13/1980 | US4202654 Wear resistant self lubricating centrifugal pump |
| 03/20/1980 | WO1980000472A1 Method and apparatus for pumping fragile articles |
| 03/20/1980 | WO1980000471A1 Method and apparatus for pumping large solid articles |
| 03/18/1980 | US4193737 Fish pump |
| 02/26/1980 | US4190396 Sodium turbine pump |
| 02/12/1980 | US4188173 Vertical pump with free floating check valve |
| 02/12/1980 | US4188172 Method and means for injecting hot liquid when pumping cold liquid |
| 12/18/1979 | US4179239 Modular pump unit for multistage high pressure slurry pump |
| 12/18/1979 | US4179238 Centrifugal pumps |
| 11/20/1979 | US4174791 Liquid-gas pumping apparatus |
| 10/23/1979 | CA1064770A1 Flushing liquid system for the wearing ring in centrifugal pumps and the wearing ring assembly and wearing ring for use therein |
| 08/28/1979 | CA1061185A1 Sump pump |
| 07/31/1979 | US4162854 Multi-shaft screw extruder |
| 07/17/1979 | CA1058447A1 Corrosion and abrasion resistant centrifugal pump |
| 05/01/1979 | US4152096 Pump having seal means and protective means |
| 04/03/1979 | US4147474 Method and system for transferring liquid media |
| 04/03/1979 | US4147468 Impeller type pump having seal means and protective means |
| 03/20/1979 | US4145008 Waste material pumping apparatus |
| 03/13/1979 | CA1050343A1 Ceramic lined centrifugal pump |
| 02/27/1979 | US4141510 Material reduction means for pumps |
| 02/06/1979 | US4138201 Pump for use in nuclear reactor plants and anchoring means therefor |
| 01/23/1979 | US4135852 Centrifugal slurry pump and method |
| 12/12/1978 | US4129402 Self-priming centrifugal trash pump |
| 12/05/1978 | US4128365 Fuel supply unit |
| 11/28/1978 | CA1043163A1 Propeller pump |
| 11/21/1978 | CA1042719A1 Centrifugal pump for viscous media |
| 10/17/1978 | US4120618 Permanent magnetic centrifugal pump |
| 10/17/1978 | US4120605 Wear liners for abrasive-material handling equipment |
| 10/17/1978 | US4120169 Multiphasic pump for rotating cryogenic machinery |
| 10/10/1978 | CA1040006A1 Centrifugal chopping slurry pump |
| 09/12/1978 | US4113407 High pressure internally lined pump casing |
| 08/22/1978 | US4108619 Degasser spray vessel |
| 08/22/1978 | US4108499 Method and control system for controlling a suspended implement |
| 08/22/1978 | US4108386 Grinder pump |
| 07/11/1978 | US4099890 Impeller type pump having seal means and protective means |
| 07/04/1978 | US4098557 Acid pump |
| 06/27/1978 | US4097253 Mud degasser trough |
| 06/27/1978 | US4097249 Method of fluid degassing |
| 05/23/1978 | US4090640 Hot melt adhesive pumping apparatus having pressure-sensitive feedback control |
| 04/25/1978 | US4086306 Centrifugal pump |
| 04/11/1978 | US4083647 Seal means for a centrifugal pump |
| 04/04/1978 | US4082482 Articulated turbine pump |
| 03/21/1978 | US4080106 Purged valve assembly and method of sealing |
| 01/31/1978 | US4071303 Rotary machine having a suspended shaft |
| 01/17/1978 | US4069101 Self-compensating level control for sump suction pumps |
| 12/27/1977 | US4065232 Liquid pump sealing system |
| 12/20/1977 | US4063849 Non-clogging, centrifugal, coaxial discharge pump |
| 11/29/1977 | US4060182 Bottle with electrically-operated pump |
| 10/04/1977 | US4052133 Corrosion and abrasion resistant centrifugal pump |
| 09/20/1977 | US4049364 Removable impeller assembly for printing press centrifugal pump |
| 08/30/1977 | US4045522 Animal waste treatment system |
| 08/23/1977 | US4043441 Mobile pump |
| 07/26/1977 | US4037985 Flushing liquid system for the wearing ring in centrifugal pumps and the wearing ring assembly and wearing ring for use therein |
| 07/12/1977 | US4035108 Axial flow pump for a pivotal rotor |
| 06/14/1977 | US4029123 Pump tank divider plate for sump suction sodium pumps |
| 05/03/1977 | US4021349 Or aerating a liquidwaste water, centrifugal impeller |
| 05/03/1977 | US4021145 Sump pump assembly |
| 05/03/1977 | US4021136 Centrifugal pump |
| 04/19/1977 | USRE29190 Automatic dredge pump rebuilder |
| 02/22/1977 | US4008985 Pumping device for fluids |
| 01/11/1977 | US4002936 Electric submersible pump |
| 11/23/1976 | US3993416 Fuel tank assembly and a method of constructing same |
| 10/05/1976 | US3984234 Method and apparatus for circulating a molten media |
| 09/28/1976 | US3982700 Mixing devices |
| 08/17/1976 | US3975058 Particulate solids pump |
| 08/10/1976 | US3973866 Centrifugal chopping slurry pump |
| 08/03/1976 | US3972643 Rotary pump |
| 07/27/1976 | US3971513 Dredge pump |
| 06/29/1976 | US3966262 Sump and pump construction for conveying solids in the form of a slurry |
| 06/08/1976 | US3961778 Installation for the treating of a molten metal |
| 06/08/1976 | US3961758 Centrifugal pump with integral grinder |
| 06/01/1976 | US3960333 Fluidic mill |
| 05/25/1976 | US3958895 Pump with shearing means |
| 04/27/1976 | US3953146 Apparatus for treating lint in an automatic washer |