| Patents for F04B 15 - Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts (3,388) |
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| 02/10/1981 | CA1095510A1 Batching pump for lime concrete |
| 02/03/1981 | CA1094995A1 Apparatus for transferring metered quantities of material from one location to another |
| 01/28/1981 | EP0022851A1 Twin-cylinder pump, in particular for pumping thick liquids. |
| 01/07/1981 | EP0020436A1 Pumping apparatus for pumping liquids such as slurrys |
| 12/23/1980 | US4240567 Pump |
| 12/16/1980 | US4239460 Cryogenic pump for liquid gases |
| 11/04/1980 | US4232064 Method for melting and applying a fusion adhesive |
| 10/29/1980 | EP0018265A1 Machine, such as pump, of which at least some moving parts are in contact with sea-water |
| 10/21/1980 | US4229143 Method of and apparatus for transporting fluid substances |
| 10/01/1980 | EP0016410A1 Pump for viscous substances, in particular concrete pump |
| 09/03/1980 | EP0015144A1 Piston and seal in a mud pump or the like |
| 08/07/1980 | WO1980001594A1 Twin-cylinder pump,in particular for pumping thick liquids |
| 08/05/1980 | US4215713 Control valve for viscous materials |
| 06/24/1980 | CA1080036A1 Adjustable liquid dispensing pump |
| 05/01/1980 | WO1980000867A1 Pumping apparatus for pumping liquids such as slurrys |
| 04/22/1980 | US4199002 Concrete pumping apparatus |
| 04/16/1980 | EP0009908A1 Apparatus and method for pumping lubricant wicking material |
| 04/08/1980 | CA1075079A1 Pump for fluent, and especially heavy and abrasive materials |
| 03/18/1980 | US4193743 Oscillatory pump for the transport of viscous materials |
| 03/11/1980 | US4192361 Apparatus for filling capsules and the like |
| 03/04/1980 | US4191513 Pump for conveying cement |
| 03/04/1980 | US4191309 Product portioning in the continuous pumping of plastic materials |
| 02/12/1980 | US4188172 Method and means for injecting hot liquid when pumping cold liquid |
| 12/25/1979 | CA1068543A Meat pump with rotary actuator |
| 12/18/1979 | US4178876 Apparatus for melting and applying a fusion adhesive |
| 12/11/1979 | US4178142 Double-cylinder pump especially for conveying cement |
| 12/04/1979 | US4177016 Self cleaning manifold connection for slurry pump |
| 11/20/1979 | US4174928 Double acting concrete pump |
| 11/20/1979 | US4174788 Batching plant for lime concrete |
| 11/20/1979 | CA1066558A1 High pressure piston pump and wiper, sealing, valving structure |
| 11/06/1979 | US4173436 Pivotable pipe slide for use in a two cylinder concrete pump |
| 11/06/1979 | US4173435 Plunger pump |
| 10/30/1979 | CA1065188A1 Piston pump for conveying semi-fluid materials |
| 08/21/1979 | CA1060857A1 Hot melt dispenser |
| 05/29/1979 | US4156584 Liquid cryogen pump |
| 05/01/1979 | CA1053506A1 Non-return valve assembly for manure pump apparatus |
| 03/27/1979 | CA1051264A1 Fluid distributor device for controlling an apparatus for pumping wet concrete and the like |
| 03/06/1979 | US4142846 Valve means for use in a concrete material pump |
| 02/20/1979 | US4140443 Manure handling system |
| 12/26/1978 | CA1044952A1 Method and apparatus for flushing the plunger of a positive displacement pump |
| 11/21/1978 | CA1042855A1 Automatic change-over device for liquid dispensing system |
| 11/14/1978 | CA1042269A1 Method and apparatus for transporting fluid substances, e.g. water, slurry and similar other materials by utilization of potential energy of liquid columns |
| 10/24/1978 | CA1041033A1 Manure transfer apparatus |
| 10/17/1978 | US4120613 Pump for molten lead, particularly injection pump used in the manufacture of storage battery plates |
| 09/26/1978 | US4116364 Dispensing system for low stability fluids |
| 09/05/1978 | US4111616 Flexible wall pump |
| 07/25/1978 | US4102613 Concrete pumping machine |
| 07/04/1978 | US4097962 Machine for continuous pumping of plastic materials |
| 06/27/1978 | US4096797 Method of compacting solids-containing waste or the like |
| 06/06/1978 | US4093404 Apparatus for preparation of matrices containing frangible particulate matter |
| 05/23/1978 | US4090640 Hot melt adhesive pumping apparatus having pressure-sensitive feedback control |
| 05/02/1978 | US4087209 Displacement slurry pump |
| 03/07/1978 | US4077750 Adjustable liquid dispensing pump |
| 01/17/1978 | USRE29519 Pumps |
| 01/10/1978 | US4067666 Concrete pumping apparatus |
| 11/08/1977 | US4057373 Multi-cylinder pump for concrete |
| 09/13/1977 | US4047854 Metering piston pump with piston-carried distributor for viscous fluid |
| 08/23/1977 | US4043441 Mobile pump |
| 07/19/1977 | US4036564 Concrete pumping apparatus |
| 07/19/1977 | US4036124 Sludge press |
| 07/12/1977 | US4035109 Pump for fluent, and especially heavy and abrasive materials |
| 06/28/1977 | US4032040 Method and control system for batching plural substances and pump system |
| 06/14/1977 | US4029442 High pressure piston pump and wiper, sealing, valving structure |
| 06/14/1977 | US4029000 Injection pump for injecting molten metal |
| 06/07/1977 | US4028017 Manure pump having agitator piston |
| 05/17/1977 | US4023592 Pump and metering device |
| 05/17/1977 | US4023469 Piston and piston rod construction for pumps and method of flushing piston-type pumps |
| 04/26/1977 | US4019839 Distributing valves for viscous materials |
| 03/29/1977 | US4014629 Pump for pumping both low viscosity and high viscosity fluids |
| 03/29/1977 | US4014461 Automatic change-over device for liquid dispensing system |
| 02/15/1977 | US4008012 Double-acting pump |
| 12/28/1976 | US3999895 Rotating barrel pump |
| 12/07/1976 | US3995734 Manure transfer apparatus |
| 11/30/1976 | US3994631 Pump and pump manifold assembly with adjustable ball valve |
| 11/30/1976 | US3994627 Pumping apparatus for wet concrete |
| 11/30/1976 | US3994626 Pump apparatus |
| 11/09/1976 | US3990816 Double acting piston pump for cryogenic medium |
| 11/02/1976 | US3989420 Concrete pumping apparatus |
| 09/28/1976 | US3982669 Hot melt dispensing apparatus and method |
| 09/28/1976 | US3982663 Method and apparatus for metering thixotropic battery paste |
| 09/21/1976 | US3981635 Material handling system |
| 08/24/1976 | US3976229 Hot melt dispensing apparatus |
| 06/22/1976 | US3964645 Apparatus for melting and dispensing thermoplastic material |
| 06/15/1976 | US3963385 Valve assembly for concrete pumps |
| 01/27/1976 | US3934813 Concrete pump valve |
| 01/27/1976 | US3934625 Food dispensing valve means and control system for automatic container filling machines |
| 01/13/1976 | US3931755 Pump |
| 01/06/1976 | US3930875 Sintered mixture of rare earth oxide, metal silicate, aluminum oxide and nitride |