| Patents for F04B 49 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups (22,036) |
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| 01/29/1980 | US4185540 Positive-displacement machine |
| 01/29/1980 | CA1070585A1 Twin check valve pump system having fail-safe characteristic |
| 01/22/1980 | US4184383 Dual stroke drive mechanism for pumps |
| 01/22/1980 | US4184341 Suction pressure control system |
| 01/22/1980 | CA1070129A1 Variable capacity multiple compressor refrigeration system |
| 01/15/1980 | US4183723 Rotary vane pump having multi-independent outputs due to stator surfaces of different contour |
| 01/08/1980 | US4182365 Control valve for use with variable displacement piston pump |
| 01/08/1980 | US4182354 Method and apparatus for flow diversion in a high pressure fluid delivery system |
| 01/08/1980 | US4182125 Control circuit for variable displacement pump with venturi bypass control |
| 01/01/1980 | US4181468 Geothermal energy pump monitor and telemetric system |
| 01/01/1980 | CA1068983A Hydraulic pumping unit with a variable speed triplex pump |
| 12/25/1979 | US4180375 Liquid chromatography pump |
| 12/25/1979 | US4180083 System for controlling flow rate in pipelines |
| 12/25/1979 | US4180040 Regulator for a fuel injection pump |
| 12/25/1979 | US4179899 Refrigerating system |
| 12/25/1979 | CA1068581A Pump systems for liquids |
| 12/18/1979 | CA1068380A1 Heat pump system with multi-stage centrifugal compressors |
| 12/18/1979 | CA1068127A1 Air sampling pump |
| 12/11/1979 | US4178132 Method and device for controlling the number of pumps to be operated |
| 11/27/1979 | US4175474 Variable displacement pump |
| 11/27/1979 | US4175398 Control system for air conditioner |
| 11/27/1979 | CA1066950A1 Power steering pump |
| 11/14/1979 | EP0005327A1 Gear train for driving a screw compressor with means for speed variation |
| 11/14/1979 | EP0005190A1 Radial piston pump |
| 11/06/1979 | US4173434 Pressure regulator for a fluid pump |
| 11/06/1979 | US4173255 Low well yield control system and method |
| 11/06/1979 | CA1065706A1 Timing control for fuel injection pump |
| 10/30/1979 | CA1065448A1 Compressor motor protector |
| 10/30/1979 | CA1065440A1 Pump control |
| 10/23/1979 | US4171933 Pumping mechanism |
| 10/23/1979 | US4171931 Apparatus for abating noise in axial blower |
| 10/16/1979 | US4171191 Apparatus for transferring metered quantities of material from one location to another |
| 10/16/1979 | US4171188 Rotary air compressors with intake valve control and lubrication system |
| 10/16/1979 | US4171186 Submerged pump control |
| 10/16/1979 | US4171185 Sonic pump off detector |
| 10/16/1979 | CA1064444A1 Two speed compressor with vibration dampening means |
| 10/16/1979 | CA1064366A1 Fluid transfer systems and valves therefor |
| 10/09/1979 | US4170438 Fluid pump with a continuously variable speed converter |
| 10/09/1979 | US4170113 Hydraulic system with unloading valve assembly |
| 10/09/1979 | CA1064132A1 Lubricator pressure cycle alarm |
| 10/09/1979 | CA1063987A1 Compressor startup control |
| 10/09/1979 | CA1063871A1 Fluid operated hydraulic pump including an improved hydraulic fluid pressure release assembly |
| 10/02/1979 | US4169695 Electromagnetic pump with pressure-regulating mechanism |
| 10/02/1979 | CA1063481A1 Pneumatic sewage ejector |
| 09/25/1979 | US4168612 Automatic control system for a hydrostatic transmission |
| 09/19/1979 | EP0004056A1 Pressure-regulated water supply installation |
| 09/19/1979 | EP0004041A1 Apparatus for limiting the fluid volume output in a rotary pump |
| 09/18/1979 | US4167896 Pump for auger treater |
| 08/21/1979 | US4165204 Sump pump |
| 08/21/1979 | CA1060757A1 Load sensing power steering system |
| 08/21/1979 | CA1060707A1 Control system for variable displacement pumps |
| 08/14/1979 | US4164240 Device for low-loss variation of flow from a positive displacement pump by periodic interruption of the flow |
| 07/31/1979 | US4162874 Horsepower summation control for variable displacement |
| 07/31/1979 | CA1059370A1 Control system for variable displacement pumps |
| 07/31/1979 | CA1059369A1 Control system for variable displacement pumps |
| 07/24/1979 | CA1059104A1 Faucet assembly |
| 07/10/1979 | CA1058129A1 Control system for variable capacity gas compressor |
| 06/28/1979 | WO1979000386A1 Improvements to cylinder heads of piston compressors,particularly for refrigerating fluids |
| 06/19/1979 | US4158529 Control device for a pumping arrangement |
| 06/19/1979 | US4158290 Electro-hydraulic controller |
| 06/19/1979 | CA1056647A1 Control system for axial piston fluid energy translating device |
| 06/12/1979 | CA1056258A1 Flow sensing auxiliary pump by-pass valve |
| 06/05/1979 | US4157233 Variable delivery hydraulic pump |
| 05/22/1979 | CA1054984A1 Dispensing device |
| 05/15/1979 | CA1054444A1 Oil pump with a flow-limiter valve |
| 05/08/1979 | US4152896 Hydraulic power system with a load-sensing and a cutoff control valve |
| 04/24/1979 | CA1053121A1 Hydraulic control device |
| 04/17/1979 | US4149830 Variable displacement piston pump |
| 04/17/1979 | US4149827 Method and apparatus for controlling operation of a compressor |
| 04/10/1979 | US4148249 Axially balanced, adjustable volume rotary machine and drive system utilizing same |
| 04/10/1979 | CA1052459A1 Oil well pumpoff control system |
| 04/03/1979 | US4147475 Control system for helical screw compressor |
| 04/03/1979 | CA1051750A1 Hydraulic controller |
| 03/20/1979 | US4145161 Speed control |
| 03/13/1979 | US4143996 Hydraulic control system and method |
| 03/13/1979 | CA1050274A1 Apparatus for the continuous feeding of plural liquids in separate streams of adjustable quantity and ratio |
| 03/06/1979 | US4142841 Variable displacement pump control |
| 03/06/1979 | US4142654 Adjustable stroke hand operated liquid dispenser |
| 03/06/1979 | US4142375 Control apparatus for air conditioning unit |
| 02/27/1979 | US4141676 Pump for soil fumigant |
| 02/27/1979 | CA1049375A1 Transmission ratio control system |
| 02/21/1979 | EP0000777A1 Control apparatus for an axial piston pump |
| 02/20/1979 | US4140439 Reciprocating compressor having a cut-off device operable within predetermined angular range |
| 02/20/1979 | US4139987 Load responsive system pump controls |
| 02/13/1979 | CA1048462A1 Variable volume clearance chamber for compressors |
| 02/06/1979 | US4138204 Gear pump |
| 02/06/1979 | US4137826 Piston pump |
| 02/06/1979 | US4137716 Load responsive system pump controls |
| 01/30/1979 | US4137014 Two speed compressor with rotor support structure |
| 01/30/1979 | US4137011 Flow control system for liquid chromatographs |
| 01/30/1979 | CA1047463A1 Control system for helical screw compressor |
| 01/30/1979 | CA1047366A1 Paint pump for airless spray guns |
| 01/30/1979 | CA1047311A1 Fluid operated hydraulic pump |
| 01/30/1979 | CA1047310A1 Method and means for controlling long stroke pumping units |
| 01/23/1979 | US4135860 Method and device for controlling the pressure of a working medium delivered by a compressor |
| 01/23/1979 | US4135859 Pollution control device adapted for attachment to reservoir gland stuffing boxes |
| 01/23/1979 | US4135496 Extracorporeal circulation apparatus |
| 01/23/1979 | US4135368 Motor vehicle air-conditioning system |
| 01/23/1979 | US4135365 Load responsive system pump controls |
| 01/23/1979 | CA1047010A1 Compressor unloader assembly |