| 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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| 01/27/1981 | US4246924 Valve arrangement |
| 01/20/1981 | US4245966 Reciprocating piston device with changeable stroke length |
| 01/20/1981 | US4245962 Displacement control system for variable displacement pump |
| 01/13/1981 | US4244678 Displacement control system for variable displacement pump |
| 01/13/1981 | CA1093427A1 Control system |
| 01/06/1981 | US4243892 Energy-efficient fluid medium pumping system |
| 01/06/1981 | CA1093041A1 Gas compressor train for wet air oxidation |
| 12/30/1980 | US4242054 Hydraulic unit |
| 12/30/1980 | US4241753 Control valve for use with variable displacement piston pump |
| 12/30/1980 | CA1092685A1 Control apparatus for two-speed single phase compressor |
| 12/24/1980 | WO1980002864A1 Control circuit for variable displacement pumps with override valve |
| 12/09/1980 | US4238073 Paint spray apparatus having pressure actuated control |
| 12/09/1980 | US4237918 Unloader and check valve |
| 12/02/1980 | US4236881 Liquid metering pump |
| 12/02/1980 | US4236874 Dual capacity compressor with reversible motor and controls arrangement therefor |
| 12/02/1980 | US4236621 Apparatus for protecting a compressor from breakdown |
| 11/26/1980 | EP0019579A1 Blending device |
| 11/25/1980 | US4235130 Adjustable stroke piston and crankshaft assembly |
| 11/12/1980 | EP0018855A1 Variable pressure and displacement reciprocating pump |
| 11/11/1980 | US4232997 Method and apparatus for controlling compressors |
| 11/11/1980 | CA1089327A1 Control system for a fluid drive |
| 11/11/1980 | CA1089326A1 Underspeed actuator for a hydrostatic transmission having a shunt valve |
| 11/04/1980 | US4231716 Mechanical lubricating pump |
| 10/29/1980 | EP0017685A1 Pump drive assembly for liquid metal reactor |
| 10/28/1980 | US4230160 Adjustable suck-back device for sanitary pumps |
| 10/21/1980 | US4229146 Air compressors |
| 10/14/1980 | US4227864 Pump for liquids |
| 10/14/1980 | US4227627 Trimmer arrangement for filling unit of automatic filling machine |
| 10/07/1980 | CA1087010A1 Energy-efficient system for controlling pulp flow through process section of a bleachery |
| 10/01/1980 | EP0016289A1 Positive displacement pump systems |
| 10/01/1980 | EP0016288A1 Positive displacement pump systems |
| 09/30/1980 | US4225288 Pump set comprising a liquid ring vacuum pump preceeded by a compressor |
| 09/23/1980 | US4223806 Apparatus for the pulsed dispensation of very small amounts of liquid, especially hydrogen peroxide |
| 09/16/1980 | US4222716 Combined pressure matching and capacity control slide valve assembly for helical screw rotary machine |
| 09/16/1980 | US4222715 Device for delivery control in a rotary piston compressor |
| 09/16/1980 | US4222712 Multiple displacement pump system with bypass controlled by inlet pressure |
| 09/16/1980 | US4222711 Sump pump control system |
| 09/16/1980 | CA1085637A1 Discharge gas temperature control |
| 09/03/1980 | EP0015069A1 Fluid actuated constant output power control for variable delivery pump |
| 09/02/1980 | US4220440 Automatic load seeking control for a pumpjack motor |
| 09/02/1980 | CA1084810A1 Hydraulic controller |
| 08/26/1980 | US4219312 Volume control system for compressor unit |
| 08/26/1980 | US4218886 Hydraulic power packs |
| 08/26/1980 | US4218885 Hydraulic power packs |
| 08/12/1980 | US4216699 Electrohydraulic control for an axial piston pump |
| 08/05/1980 | US4215974 Pumping rate control method and apparatus for internal combustion engine driven pumps |
| 08/05/1980 | US4215543 Method and apparatus for linear and nonlinear control of a hydraulic press |
| 07/29/1980 | US4214652 Variable power transmission and absorption device |
| 07/23/1980 | EP0013571A1 Aerating valve |
| 07/22/1980 | US4213744 Hydraulic pump and improved by-pass flow means therefor |
| 07/15/1980 | US4212596 Pressurized fluid supply system |
| 07/15/1980 | US4212591 Pressure control for pumps |
| 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 |
| 07/10/1980 | WO1980001400A1 Anti-stall controller |
| 07/08/1980 | US4211080 Hydraulic power packs |
| 07/08/1980 | CA1081042A1 Positive displacement pump |
| 07/01/1980 | US4210116 Electromagnetically actuated pumps |
| 06/17/1980 | US4208171 Hydrodynamic pump units and regulators therefor |
| 06/17/1980 | CA1079589A1 Piston applicating device |
| 06/11/1980 | EP0012015A1 Apparatus for delivering varying quantities of a fluid |
| 05/27/1980 | US4204813 LNG Pump anti-slam device |
| 05/27/1980 | US4204809 Wide range control for delivery apparatus |
| 05/27/1980 | CA1078359A2 Faucet assembly |
| 05/20/1980 | US4203712 Single or plural variable displacement pump control with an improved flow metering valve |
| 05/20/1980 | CA1077739A1 High pressure liquid chromatography system |
| 05/13/1980 | US4202252 Throughput-adjustable fluid-displacement machine |
| 05/13/1980 | US4202251 Generator for flow rate of pressurized fluid |
| 05/13/1980 | CA1077344A1 Load plus differential pressure compensator pump control assembly |
| 05/06/1980 | US4201522 Boost-retarding device for electromagnetic plunger pump and the like |
| 05/06/1980 | US4201517 Automatic control selector for a compressor system |
| 05/06/1980 | CA1076883A1 Variable displacement piston pump |
| 05/06/1980 | CA1076837A1 Liquid chromatography system with solvent proportioning |
| 04/30/1980 | EP0010464A1 Method and device for starting a cryogenic-liquid pump |
| 04/30/1980 | EP0010090A1 Improvements to cylinder heads of piston compressors, particularly for refrigerating fluids |
| 04/29/1980 | CA1076417A1 Horsepower limiter control for a variable displacement pump |
| 04/29/1980 | CA1076416A1 Pump and drive assemblies |
| 04/16/1980 | EP0009631A1 Control circuit for variable displacement pump with venturi bypass control |
| 04/15/1980 | US4197705 Hydraulic control system |
| 04/15/1980 | CA1075802A1 Digital valve and pump control system |
| 04/08/1980 | US4196758 Apparatus for testing the automatically operating control of a pump |
| 04/03/1980 | WO1980000591A1 Gear machine |
| 04/02/1980 | EP0009145A1 Refrigerant compressor capacity control apparatus |
| 04/01/1980 | CA1074744A1 Device for releasing small amounts of liquids |
| 04/01/1980 | CA1074664A1 Speed and load responsive underspeed actuator for hydrostatic transmissions |
| 03/25/1980 | US4194364 Arrangement for controlling the operation of a fluid-displacement machine |
| 03/25/1980 | US4194363 Fluid horsepower control system |
| 03/25/1980 | US4194361 Electro-mechanical control system for hydraulic displacement pumps, such as swash plate or eccenter pumps |
| 03/25/1980 | CA1074272A1 Rotary air compressors |
| 03/18/1980 | US4193742 Vacuum pump assembly with built-in shutoff valve |
| 03/18/1980 | CA1073739A1 Hydraulic pump control system |
| 03/11/1980 | USRE30226 Torque limiting control |
| 03/11/1980 | US4192223 Adjustment device, notably for metering reciprocating pumps |
| 03/11/1980 | CA1073267A1 Liquid fuel injection pumps |
| 03/04/1980 | CA1073081A1 Downhole pump speed control |
| 03/04/1980 | CA1072817A1 Pilot operated pressure compensated pump control |
| 02/26/1980 | US4189921 Hydraulic controller |
| 02/19/1980 | US4188787 Hydraulic control apparatus |
| 02/05/1980 | US4187060 Liquid fuel injection pumps |
| 02/05/1980 | CA1071283A1 Double motor variable speed drive unit |