| 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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| 04/02/1985 | US4508490 Two stage manual air pump |
| 04/02/1985 | US4508488 Well pump controller |
| 04/02/1985 | US4508487 Automatic load seeking control for a pumpjack motor |
| 04/02/1985 | US4508142 Zero displacement low-shear valve |
| 04/02/1985 | US4508133 Protective cover retainer |
| 04/02/1985 | CA1184821A1 Stepping motor control procedure for achieving variable rate, quasi-continuous fluid infusion |
| 03/28/1985 | WO1985001326A1 Ram air turbine hydraulic power system |
| 03/27/1985 | EP0135068A1 Failure detection system for hydraulic pumps |
| 03/26/1985 | US4507057 Control system for hydraulic pumps of a civil machine |
| 03/26/1985 | US4507054 Liquid dispensing system |
| 03/26/1985 | US4507053 Pump off control |
| 03/26/1985 | US4506859 Device for controlling a connection between a pressure medium source and a fluid supply container in a pressure medium operated system |
| 03/26/1985 | US4506648 Controlled displacement supercharger |
| 03/26/1985 | US4506517 Air conditioning compressor unloading control system |
| 03/26/1985 | US4506516 Refrigeration unit compressor control |
| 03/20/1985 | EP0134211A1 Pumping device for hydraulic plants. |
| 03/19/1985 | US4505648 Unloading mechanisms for air compressors |
| 03/19/1985 | US4505647 Vacuum pumping system |
| 03/19/1985 | US4505643 Liquid pump control |
| 03/19/1985 | US4505186 Lubricant monitoring system |
| 03/19/1985 | US4505122 Variable delivery compressor |
| 03/19/1985 | US4505111 Hydraulic control system for industrial vehicle |
| 03/19/1985 | CA1184278A1 Fluid pump |
| 03/13/1985 | EP0133870A1 Control device for several hydraulic transmission units |
| 03/12/1985 | US4503674 Hydrostatic drive systems |
| 03/05/1985 | US4502850 Rotary compressor |
| 03/05/1985 | US4502844 Refrigerant compressor with mechanism for adjusting capacity of the compressor |
| 03/05/1985 | US4502842 Multiple compressor controller and method |
| 03/05/1985 | US4502834 In a water supply system |
| 03/05/1985 | US4502833 Monitoring system for screw compressor |
| 03/05/1985 | US4502515 Dry battery driven liquid pump |
| 02/26/1985 | US4502090 Protective control system for engine |
| 02/26/1985 | CA1182998A1 Liquid dispensing apparatus |
| 02/19/1985 | US4500268 Rotary pump having brake means with thermal fuse |
| 02/19/1985 | US4500262 Variable pressure and displacement reciprocating pump |
| 02/12/1985 | US4498847 Control system for variable displacement hydraulic pumps |
| 02/12/1985 | US4498846 Stroke control valve |
| 02/12/1985 | US4498843 Insulin infusion pump |
| 02/12/1985 | US4498311 Control device for a variable displacement compressor in an air conditioning system |
| 01/29/1985 | US4496290 Control device for maintaining the product of the lifting pressure and lifting volume times flow constant in an adjustable pump |
| 01/29/1985 | US4496289 Device for controlling and/or measuring operational parameters of an axial piston machine |
| 01/29/1985 | US4496288 Vane type pump with a variable capacity for power steering devices |
| 01/29/1985 | US4495766 Controls for hydrostatic systems |
| 01/23/1985 | EP0131598A1 Multiple displacement hydraulic pump sytem with automatic displacement control for brake boosters and the like |
| 01/22/1985 | US4494447 Self-latching eccentric cam for dual stroke compressor or pump |
| 01/22/1985 | CA1181509A1 Pulsation-free volumetric pump |
| 01/17/1985 | WO1985000202A1 Plural hydraulic pump system with automatic displacement control |
| 01/16/1985 | EP0131368A2 Pump protection system |
| 01/16/1985 | EP0034591B1 Apparatus for controlling capacity of a multiple-stage cooling system |
| 01/15/1985 | US4493188 Drive transmission means |
| 01/09/1985 | EP0130931A2 Degradation sensing and shut-down means for refrigeration motor-compressor units |
| 01/09/1985 | EP0130662A2 Compressor control system |
| 01/09/1985 | EP0130299A1 Circuit for controlling by-pass valves for hydraulic high-pressure pumps used in the mining industry |
| 01/08/1985 | US4492526 Compressor drive system |
| 01/08/1985 | US4492525 Pneumatic fire pump pressure controller |
| 01/08/1985 | US4492524 Multiple piston pump with a constant discharge capacity |
| 01/08/1985 | US4492106 Manually actuated hydraulic jack for compressively applying terminals on electric cables and conductors in general |
| 01/02/1985 | CA1180426A Control apparatus and method for an oil-well pump assembly |
| 01/01/1985 | US4490988 Degradation sensing and shut-down means for refrigeration motor-compressor units |
| 12/27/1984 | EP0129187A2 Protecting device against the running dry of a diaphragm piston pump |
| 12/27/1984 | EP0129097A2 Stroke control valve for a radial piston pump |
| 12/27/1984 | EP0129020A1 Piezo-electric control device for a fuel injection apparatus |
| 12/27/1984 | CA1180083A Ultrasensitive apparatus and method for detecting change in fluid flow conditions in a flowline of a producing oil well, or the like |
| 12/25/1984 | US4490619 Hydraulically driven generator system with air conditioning means |
| 12/25/1984 | US4489552 Automatic neutral point detecting system for hydraulic pump |
| 12/25/1984 | US4489551 Failure detection system for hydraulic pump |
| 12/18/1984 | CA1179577A1 Electro hydraulic control with dead zone compensation |
| 12/11/1984 | US4487604 Apparatus for dispensing nutritional substances enterically |
| 12/11/1984 | US4487224 Air switch and filter combination |
| 12/05/1984 | EP0127559A1 Variable capacity compressor and method of operating |
| 12/05/1984 | EP0127406A2 An improved pumping system |
| 12/04/1984 | US4486158 Rotary vane compressor with suction port adjustment |
| 12/04/1984 | US4485635 Control device for a compressor in a refrigerating system |
| 12/04/1984 | US4485634 Control device for air conditioner for automobile |
| 11/27/1984 | US4484862 Submersible pumps |
| 11/20/1984 | CA1178256A1 Stepping type unloading system for helical screw rotary compressor |
| 11/13/1984 | US4482301 Valve controlled pump driven by a motor |
| 11/13/1984 | CA1177725A1 Torque and high pressure limiting control for variable displacement pumps |
| 11/06/1984 | US4480965 Capacity modulation device for compressor |
| 11/06/1984 | US4480963 Pump swashplate control assist |
| 11/06/1984 | US4480962 Pump with inlet passages downstream and through its flow control valve |
| 11/06/1984 | US4480961 Swash plate type compressor with a malfunction detector |
| 11/06/1984 | CA1177327A1 Power steering pump |
| 11/06/1984 | CA1177326A1 Power steering pump |
| 10/31/1984 | EP0123523A2 Droplet depositing apparatus and method |
| 10/30/1984 | US4479764 For power steering systems |
| 10/30/1984 | US4479419 Dual capacity reciprocating compressor |
| 10/24/1984 | EP0122770A1 Control system for variable displacement motors |
| 10/24/1984 | EP0122346A1 Fluidic pump-off control devices |
| 10/23/1984 | USRE31711 Variable delivery hydraulic pump |
| 10/23/1984 | US4478136 Electrohydraulic control arrangement for hydrostatic machine |
| 10/17/1984 | EP0122171A1 Automatic hydraulic device to adjust the flow rate and to protect against gauge pressure for hydraulic pumps with a constant flow rate |
| 10/17/1984 | EP0122015A1 Air compressor |
| 10/16/1984 | US4476680 For a hydrostatic transmission |
| 10/09/1984 | US4475871 Variable displacement compressor |
| 10/02/1984 | US4474542 Operation control method and device for a vehicle air conditioning compressor |
| 10/02/1984 | US4474539 Dual pressure gas compressor |
| 10/02/1984 | US4474309 Stepping motor control procedure for achieving variable rate, quasi-continuous fluid infusion |
| 10/02/1984 | US4474104 Control system for variable displacement pumps and motors |
| 09/25/1984 | US4473338 Controlled well pump and method of analyzing well production |