| Patents for F04B 7 - Piston machines or pumps characterised by having positively-driven valving (2,226) |
|---|
| 09/16/1980 | CA1085793A1 Universal, sequential pump dispensing system |
| 09/09/1980 | US4221551 Sliding valve pump |
| 08/07/1980 | WO1980001594A1 Twin-cylinder pump,in particular for pumping thick liquids |
| 08/05/1980 | US4215713 Control valve for viscous materials |
| 07/23/1980 | EP0013629A1 Gas compressor or blower |
| 07/08/1980 | CA1081042A1 Positive displacement pump |
| 05/20/1980 | CA1077739A1 High pressure liquid chromatography system |
| 04/29/1980 | CA1076416A1 Pump and drive assemblies |
| 04/15/1980 | US4198193 Automatic wear compensation apparatus for concrete pumping hopper apparatus |
| 04/08/1980 | CA1075079A1 Pump for fluent, and especially heavy and abrasive materials |
| 03/11/1980 | US4192361 Apparatus for filling capsules and the like |
| 03/04/1980 | US4191513 Pump for conveying cement |
| 02/05/1980 | US4187173 Reverse osmosis method and apparatus |
| 01/01/1980 | CA1069091A Spray pump assembly |
| 12/11/1979 | US4178142 Double-cylinder pump especially for conveying cement |
| 12/11/1979 | CA1067791A1 Fluid handling assembly |
| 11/20/1979 | US4174788 Batching plant for lime concrete |
| 11/06/1979 | US4173436 Pivotable pipe slide for use in a two cylinder concrete pump |
| 10/16/1979 | CA1064339A1 Pneumatically operated oscillator |
| 10/02/1979 | CA1063525A1 Injection lubricating apparatus |
| 09/11/1979 | US4167374 Pump and valve arrangement |
| 09/11/1979 | CA1062081A1 Fluid motor-driven pump using fluid pressure to set position of pilot valve |
| 07/31/1979 | CA1059446A1 Injection type lubricating apparatus |
| 07/10/1979 | US4160628 Positive displacement machine |
| 05/15/1979 | CA1054580A1 Controlled pumping system |
| 05/08/1979 | CA1054109A1 Filling unit with air-operated spool valve system |
| 04/18/1979 | EP0001463A1 Plunger pump |
| 03/27/1979 | US4146355 High-pressure plunger pump |
| 03/20/1979 | US4145166 Displacement pump |
| 03/13/1979 | US4143995 Single drive motor device particularly to supply fluid conveyance tandem line systems |
| 03/06/1979 | US4142846 Valve means for use in a concrete material pump |
| 03/06/1979 | US4142504 Lubricating oil pump for two cycle internal combustion engines |
| 02/20/1979 | US4140443 Manure handling system |
| 02/13/1979 | CA1048460A1 Valve system for filling machines |
| 02/13/1979 | CA1048343A1 Positive displacement metering pump |
| 01/30/1979 | US4137015 Energy conversion system using windmill |
| 11/28/1978 | CA1043164A1 Liquid metering pumps |
| 11/14/1978 | US4125176 Injection type lubricating apparatus |
| 10/31/1978 | CA1041370A1 Piston pump |
| 10/24/1978 | CA1041033A1 Manure transfer apparatus |
| 10/17/1978 | US4120619 Reciprocating pumps for dispensing pastes, liquids and other substances |
| 10/17/1978 | US4120202 Positive displacement pump |
| 09/26/1978 | CA1039108A1 Volumetric pump |
| 08/15/1978 | US4106882 Positive displacement pump for semi-fluid materials |
| 08/08/1978 | US4105373 Fluid distributor device for controlling an apparatus for pumping wet concrete and the like |
| 08/08/1978 | US4105095 Injection lubricating apparatus |
| 07/25/1978 | USRE29707 Product pressurized air dispenser having improved product control valve actuator |
| 06/27/1978 | US4097198 Internal combustion assisted hydraulic engine |
| 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 |
| 05/16/1978 | US4089624 Controlled pumping system |
| 05/09/1978 | US4088033 Piston power generating machine |
| 05/02/1978 | US4087205 Free-piston engine-pump unit |
| 03/14/1978 | US4078583 Automatic filling machine-valve assembly |
| 01/17/1978 | US4068974 Fountain toothbrush having bristle carrier easily producible by injection molding |
| 01/10/1978 | US4067668 Valveless rotary-oscillating double-acting piston pump |
| 12/27/1977 | USRE29503 Apparatus for use as a gas compressor or blower |
| 12/27/1977 | US4065230 Reciprocating infusion pump and directional adapter set for use therewith |
| 11/29/1977 | US4060351 Controlled inlet valves for metering pumps |
| 11/29/1977 | US4060060 Valving system for compressors, engines and the like |
| 11/08/1977 | US4057373 Multi-cylinder pump for concrete |
| 11/01/1977 | US4056258 Actuating device with electronic control for injectors of liquid mixers |
| 11/01/1977 | US4055950 Energy conversion system using windmill |
| 10/25/1977 | US4055281 Filling unit with air-operated spool valve system |
| 10/25/1977 | US4055069 Portable manually controlled hydraulic pipe bending apparatus |
| 10/11/1977 | US4053902 Fluid pump for a writing device |
| 10/11/1977 | US4053901 Fluid pump for a writing device having an air ejector feature |
| 09/13/1977 | US4047854 Metering piston pump with piston-carried distributor for viscous fluid |
| 09/06/1977 | US4046166 Reciprocating valve for a double piston concrete pump |
| 08/30/1977 | US4045343 High pressure liquid chromatography system |
| 08/23/1977 | US4043711 Lubricating oil pump |
| 08/23/1977 | US4043122 Fluid cam assembly |
| 07/26/1977 | US4037996 Volumetric pump |
| 07/19/1977 | US4036564 Concrete pumping apparatus |
| 07/19/1977 | US4036326 Lubricating oil pump |
| 07/19/1977 | US4036124 Sludge press |
| 07/12/1977 | US4035109 Pump for fluent, and especially heavy and abrasive materials |
| 07/12/1977 | US4034900 Spray pump assembly |
| 06/21/1977 | US4030860 Variable proportional metering apparatus |
| 06/14/1977 | US4029442 High pressure piston pump and wiper, sealing, valving structure |
| 06/07/1977 | US4028015 Unloader for air compressor with wobble piston |
| 06/07/1977 | US4027785 Dual pump colorant dispenser |
| 05/03/1977 | US4021153 Liquid metering pumps |
| 05/03/1977 | US4020760 Printing ink metering pump |
| 04/26/1977 | US4019839 Distributing valves for viscous materials |
| 04/12/1977 | USRE29176 Product pressurized compressed air dispenser |
| 04/05/1977 | US4015915 Oil free compressor |
| 03/22/1977 | US4013386 Positive displacement metering pump |
| 02/22/1977 | US4008981 Device for locating the position of the control rack of a pump and for locking the latter in disassembling position |
| 02/15/1977 | US4008003 Valveless positive displacement pump |
| 01/25/1977 | US4004717 Pressure fed liquid dispenser |
| 01/04/1977 | US4000790 Lubricant proportioning pump |
| 12/21/1976 | US3998569 Apparatus for use as a gas compressor or gas blower |
| 12/07/1976 | US3995974 Internal combustion assisted hydraulic engine |
| 12/07/1976 | US3995779 Aerosol container |
| 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 |
| 11/30/1976 | US3994418 Method of feeding material to a gas generator |