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