| Patents for F04B 19 - Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups (2,867) |
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| 12/21/1982 | US4364469 Bottom suspension arrangement for a liquid screw conveyor assembly |
| 11/09/1982 | US4357798 Rapid actuating device of hydraulic actuator |
| 10/13/1982 | EP0062129A2 Method and apparatus for producing cement or plaster |
| 07/06/1982 | US4338065 Thermo-pneumatic pump |
| 06/15/1982 | CA1125713A1 Apparatus for exchanging energy between high and low pressure systems |
| 04/13/1982 | CA1121655A1 Double acting concrete pump |
| 03/23/1982 | US4321020 Fluid pump |
| 03/09/1982 | US4318670 Screw pump for conveying waste water and the like |
| 02/24/1982 | EP0046147A1 Device for moving liquid mediums, particularly in heat pumps |
| 02/10/1982 | EP0045472A1 Hydraulic power generator driven by a free piston engine |
| 09/29/1981 | CA1109732A1 Free piston engine pump with energy rate smoothing |
| 09/08/1981 | US4287819 Source of vacuum and device for maintaining a negative pressure in an enclosure |
| 09/01/1981 | US4286736 Liquid Dispenser |
| 08/25/1981 | US4285642 Pump piston cylinder assembly with exterior ring seals |
| 08/25/1981 | CA1107565A1 Free piston fluid energy transfer device |
| 08/04/1981 | US4281969 Thermal pumping device |
| 05/26/1981 | CA1101809A1 Fine tune adjusting mechanism for tandem-operated filling units of a filling machine |
| 03/03/1981 | CA1096623A1 Piston pump for use in gasifying fine grained and dust-like solids fuels |
| 02/10/1981 | US4249868 Pump for high viscosity lubricants with improved priming feature |
| 02/10/1981 | US4249838 Sealed flight screw injector |
| 01/20/1981 | US4245949 Archimedean screw pumps |
| 01/07/1981 | EP0020340A1 High voltage breaker |
| 01/06/1981 | US4242988 Method and device for transferring condensates from a low pressure network into a high pressure network in a system of generation, distribution and utilization of condensable vapor |
| 12/30/1980 | US4242053 Free piston fluid energy transfer device |
| 12/16/1980 | US4239449 Screw pump construction |
| 11/04/1980 | CA1088823A1 Method and device for feeding a system of generation and distribution of vapour condensable into make-up liquid |
| 07/15/1980 | US4212416 Fine tune adjusting mechanism for tandem-operated filling units of a filling machine |
| 07/15/1980 | CA1081539A1 Apparatus for transferring metered quantities of material from one location to another |
| 04/17/1980 | WO1980000764A1 High voltage breaker |
| 12/25/1979 | US4180353 Piston pump for use in gasifying fine grained and dust-like solid fuels |
| 12/11/1979 | US4177767 Method and device for feeding a system of generation and distribution of vapor condensable into make-up liquid |
| 11/13/1979 | US4174194 Reciprocating pump |
| 11/06/1979 | US4173451 Downhole pump |
| 11/06/1979 | US4173435 Plunger pump |
| 09/18/1979 | CA1062543A1 Endless belt pump |
| 08/07/1979 | US4163636 Lifting device for water, waste water, sludge and the like |
| 07/31/1979 | CA1059371A1 Centrifugal fluid pump |
| 05/15/1979 | US4154560 Endless belt pump |
| 04/18/1979 | EP0001463A1 Plunger pump |
| 04/03/1979 | US4147475 Control system for helical screw compressor |
| 03/27/1979 | US4146355 High-pressure plunger pump |
| 01/30/1979 | CA1047463A1 Control system for helical screw compressor |
| 12/05/1978 | US4128083 Gas cushioned free piston type engine |
| 10/17/1978 | US4120619 Reciprocating pumps for dispensing pastes, liquids and other substances |
| 10/10/1978 | CA1040005A1 High-pressure plunger pump |
| 10/03/1978 | US4118799 Apparatus for transferring metered quantities of material from one location to another |
| 10/03/1978 | US4118151 Pump device |
| 09/19/1978 | CA1038852A1 Jack-pump device |
| 09/05/1978 | US4110986 Systems for making use of the energy carried by a fluid and supplied thereto by solar energy |
| 07/25/1978 | US4102613 Concrete pumping machine |
| 07/25/1978 | US4102611 Plunger pump |
| 01/17/1978 | US4068983 Piston pumps driven by fluid-actuated piston having a constant fluid force against the small area surface |
| 10/04/1977 | US4052135 Control system for helical screw compressor |
| 09/13/1977 | US4047854 Metering piston pump with piston-carried distributor for viscous fluid |
| 08/23/1977 | US4043711 Lubricating oil pump |
| 07/19/1977 | US4036564 Concrete pumping apparatus |
| 06/28/1977 | US4031877 Engine lubricating oil pump |
| 04/19/1977 | US4018545 Mix blending pump |
| 03/08/1977 | US4010609 Jack-pump device |
| 11/30/1976 | US3994616 Lifting device for water, waste water, sludge and the like |
| 11/30/1976 | US3994134 Apparatus for power generation in deep seawater |
| 10/19/1976 | US3986354 Method and apparatus for recovering low-temperature industrial and solar waste heat energy previously dissipated to ambient |
| 07/06/1976 | US3967612 Lubricating oil pump for use in an internal combustion engine |
| 03/02/1976 | US3941515 Centrifugal fluid pump |
| 02/17/1976 | US3938425 Pump stroke adjustment device |
| 02/10/1976 | US3937599 Pumping system using solar energy |
| 01/06/1976 | US3930757 Pressure equalizing pump |