| 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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| 09/14/1982 | CA1131543A1 Input torque control system for a variable displacement pump |
| 09/07/1982 | US4348159 Convertible pump servo-valve control |
| 09/07/1982 | US4347806 Liquid dispensing apparatus |
| 08/31/1982 | US4347131 Liquid chromatographic pump module |
| 08/31/1982 | US4347047 Hydraulic pump for power steering |
| 08/31/1982 | CA1130891A1 Load responsive system pump controls |
| 08/24/1982 | US4345881 Close-off valve for suction pipes in hydraulic pumps |
| 08/24/1982 | US4345483 Metering apparatus |
| 08/24/1982 | CA1130150A1 Pumping system for unstable fluids |
| 08/24/1982 | CA1130138A1 Sump pump motor actuator |
| 08/19/1982 | WO1982002743A1 Fluid-pessure operated motors |
| 08/17/1982 | US4344743 Piezoelectric driven diaphragm micro-pump |
| 08/17/1982 | US4344741 Automatic water supply system |
| 08/17/1982 | US4344285 Signal bleed-down valve |
| 08/11/1982 | EP0057211A1 Improved water storage tank |
| 08/10/1982 | US4343275 Electromagnetically actuated pumps |
| 08/10/1982 | CA1129305A1 Low well yield control system and method |
| 08/10/1982 | CA1129275A1 Automatic pump sequencing and flow rate modulating control system |
| 08/04/1982 | EP0056888A1 Unloading means for a gas compressor |
| 08/03/1982 | US4342573 Compact oxygen concentrator |
| 07/28/1982 | EP0056514A2 Hydraulic control system |
| 07/27/1982 | US4341504 Pump control system |
| 07/27/1982 | US4341073 Control circuit for variable displacement pumps with override valve |
| 07/21/1982 | EP0056344A1 Hydraulic drive liquid transfer pump system |
| 07/20/1982 | US4340337 Positive displacement pump systems |
| 07/14/1982 | EP0055794A2 Hydraulic power transmission |
| 07/13/1982 | US4338962 Control and relief valves |
| 07/06/1982 | US4338524 Drive unit for a compressor of a heat pump |
| 07/06/1982 | CA1127002A1 Variable flow or metering pump |
| 06/22/1982 | US4336003 Crane swing control |
| 06/22/1982 | US4336001 Solid state compressor control system |
| 06/22/1982 | US4335999 Pressure control for pumps |
| 06/08/1982 | US4333356 Mixing apparatus |
| 06/08/1982 | CA1125144A1 Control for hydraulic accumulator system |
| 06/01/1982 | US4332531 Variable displacement pump with torque limiting control |
| 06/01/1982 | US4332528 Compression type refrigeration device |
| 06/01/1982 | US4332144 Bottoming cycle refrigerant scavenging for positive displacement compressor, refrigeration and heat pump systems |
| 06/01/1982 | CA1124616A1 Fluid horsepower control system |
| 05/25/1982 | US4330999 Refrigerant compressor |
| 05/19/1982 | EP0051760A1 A pneumatically controlled compressor idling clutch having a valve arrangement |
| 05/18/1982 | US4330238 Automatic actuator for variable speed pump |
| 05/18/1982 | US4330003 Self-proportional fluid metering device actuated by a pressurized fluid |
| 05/11/1982 | US4329120 Pump protector apparatus |
| 05/11/1982 | US4328678 Refrigerant compressor protecting device |
| 04/28/1982 | EP0050296A1 A pulsation-free volumetric pump |
| 04/27/1982 | US4326839 Cylinder unloading mechanism for refrigeration compressor |
| 04/27/1982 | US4326837 Pumping apparatus using a stepping motor |
| 04/20/1982 | US4325678 Hydraulic pressure producing system for a hydraulic press |
| 04/20/1982 | US4325677 Arrangement for the regulation of the output and for limiting the output fluid pressure of an adjustable pump |
| 04/20/1982 | US4325224 Method and apparatus for transport refrigeration system control |
| 04/20/1982 | US4325222 Device responsive to unusual temperature change in refrigerant compressor |
| 04/20/1982 | US4325215 Hydraulic apparatus |
| 04/15/1982 | WO1982001224A1 A high pressure pump with a return valve,particularly for high pressure cleaners |
| 04/06/1982 | US4323333 Piston metering pump |
| 04/01/1982 | WO1982001048A1 Multiple pump system with horsepower limiting control |
| 04/01/1982 | WO1982001047A1 Torque and high pressure limiting control for variable displacement pumps |
| 04/01/1982 | WO1982001046A1 Horsepower consumption control for variable displacement pumps |
| 04/01/1982 | WO1982001045A1 Improved load-plus valve for variable displacement pumps |
| 04/01/1982 | WO1982001044A1 Unloading means for flow-pressure compensated valve |
| 03/31/1982 | EP0048342A2 Process and apparatus to supply a pressure fluid which is pumped with a variable pressure |
| 03/30/1982 | US4321940 Unloader/check valve |
| 03/24/1982 | EP0047885A1 Flow control valve arrangement |
| 03/23/1982 | US4321016 Apparatus for continuous slurry displacement transfer |
| 03/23/1982 | US4321014 Constant flow pumping apparatus |
| 03/16/1982 | CA1120135A1 Beam pumping unit speed control |
| 03/09/1982 | CA1119463A1 Pressure compensated pump |
| 03/02/1982 | US4317468 Pressure relief valve |
| 02/23/1982 | US4316702 Oil well control circuit |
| 02/23/1982 | CA1118735A1 Adjustable speed drive system for centrifugal fan |
| 02/18/1982 | WO1982000499A1 Improved water storage tank |
| 02/17/1982 | EP0045933A1 Apparatus for controlling a driving force applied to a compressor |
| 02/17/1982 | EP0045928A1 Power transmission |
| 02/17/1982 | EP0045832A1 A control system for a variable displacement pump |
| 02/16/1982 | US4316130 Pneumatic device to control the speed of an electric motor |
| 02/16/1982 | US4315716 Suction control valve |
| 02/10/1982 | EP0045472A1 Hydraulic power generator driven by a free piston engine |
| 02/02/1982 | CA1117365A1 Electrohydraulic control for an axial piston pump |
| 01/27/1982 | EP0044606A1 Variable capacity positive displacement type compressors |
| 01/27/1982 | EP0044518A1 Displacement control system for a variable displacement pump |
| 01/26/1982 | US4312626 Multi-stage compressor control system and method |
| 01/26/1982 | EP0034591A4 Apparatus for controlling capacity of a multiple-stage cooling system. |
| 01/20/1982 | EP0043947A1 Power steering pump |
| 01/19/1982 | US4311438 Method and apparatus for controlling the start of an intermittently operating pump |
| 01/19/1982 | CA1116438A1 Reciprocating stroke length adjustment device and method |
| 01/19/1982 | CA1116424A1 Control system for air conditioner |
| 01/13/1982 | EP0043701A2 Capacity control for a scroll-type fluid displacement apparatus |
| 01/13/1982 | EP0043459A2 Control device for a set of several pumps driven by a common energy source |
| 01/12/1982 | US4310420 Mobile phase supplying method in the liquid chromatography and apparatus therefor |
| 01/12/1982 | US4310289 Hydraulically operated steering system with pressure control |
| 01/05/1982 | US4309156 Fluid activated pump having variable discharge |
| 01/05/1982 | US4309152 Hydraulic motor/pump with variable mechanical advantage |
| 01/05/1982 | US4309149 Vacuum pump switch |
| 12/30/1981 | EP0042774A1 Arrangement for obtaining hydraulic fluid quantities of successively graded values |
| 12/29/1981 | CA1115381A1 Control system for regulating large capacity rotating machinery |
| 12/22/1981 | CA1114931A1 Wide range control for delivery apparatus |
| 12/16/1981 | EP0041518A1 Drive transmission means |
| 12/15/1981 | CA1114338A1 Metering apparatus |
| 12/08/1981 | US4304526 Well system and flow control tank |
| 12/08/1981 | US4304172 Setting device for a hydraulic machine |
| 12/01/1981 | CA1113305A1 Adjustable metering pump |