Patents
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)
02/1984
02/14/1984CA1162214A1 Self-contained fountain arrangement
02/14/1984CA1162154A1 Warm-up valve in a variable displacement system
01/1984
01/31/1984US4428718 Variable displacement compressor control valve arrangement
01/31/1984CA1161409A1 Unloader/check valve
01/24/1984US4427346 Motor-driven reciprocating piston compressor, particularly for hermetically encapsulated small refrigerators
01/17/1984US4426196 Oil supply system
01/17/1984US4426195 Adjustable axial flow piston machines
01/17/1984CA1160605A1 Cylinder unloading mechanism for refrigeration compressor
01/17/1984CA1160539A1 Power transmission
01/17/1984CA1160538A1 Power transmission
01/10/1984CA1160319A1 Pump failure protection for liquid transmission pipelines
01/03/1984US4424005 Method and apparatus for controlling the capacity of a reciprocating compressor
12/1983
12/27/1983US4422834 Power steering pump
12/20/1983US4421462 Variable displacement pump of vane type
12/20/1983US4421459 Fluid level control apparatus
12/20/1983US4420937 Hydraulic circuit for a variable displacement pump
12/20/1983US4420935 Hydraulic system
12/13/1983US4420393 Pump for liquid chromatography and a chromatograph including the pump
12/13/1983US4420290 Power steering pump
12/13/1983US4420289 System for successively producing hydraulic fluid flows at staggered values
12/13/1983CA1158745A1 Method and apparatus for controlling capacity of a multiple-stage cooling system
11/1983
11/30/1983EP0095037A2 Lubricant watching device at a piston compressor
11/24/1983WO1983004074A1 Regulator
11/23/1983EP0094457A1 Safety arrangement for a vacuum pump
11/22/1983US4416590 Hydraulic drive liquid transfer pump system
11/22/1983CA1157314A1 Apparatus for converting a pump to a controller
11/16/1983EP0093916A1 Control apparatus for a variable displacement pump
11/15/1983US4415313 Hydraulic generator with free-piston engine
11/15/1983CA1157129A1 Dosing apparatus
11/09/1983EP0093705A1 Piston compressor
11/08/1983US4413955 Swash plate compressor
11/08/1983US4413951 Capacity control arrangement for fixed speed compressor
11/08/1983US4413778 Antique lawn pump mobile
11/08/1983US4413548 Hydraulic motor with adjustable flow volume
11/08/1983US4413472 High-pressure pump with pressure regulator
11/02/1983EP0092751A1 Compressor unit for heat pump equipment
11/01/1983US4413218 Automatic load seeking control for a multitorque motor
11/01/1983US4412789 Oil pump unit
11/01/1983US4412788 Control system for screw compressor
10/1983
10/26/1983EP0091994A1 Apparatus for generating gas under pressure
10/25/1983US4411141 Parallel operation compressor type refrigerating apparatus
10/25/1983CA1155949A1 Electronic intermitter
10/19/1983EP0091569A2 Output regulator for a hydrostatic pump
10/18/1983US4410299 Compressor having functions of discharge interruption and discharge control of pressurized gas
10/18/1983CA1155369A1 Hydraulic power pack
10/11/1983USPP5120 Rose plant 72-12551
10/11/1983US4408963 Power steering pump
10/11/1983US4408453 Hydraulic control system
10/05/1983EP0090760A2 Method and apparatus for controlling the operation of a compressor crankcase heater
10/04/1983US4407640 Reciprocating pump having unique pressure control valve construction
10/04/1983US4407639 Compressor
10/04/1983US4407139 Method for controlling an air conditioning system
10/04/1983CA1154731A1 Vacuum pump switch
09/1983
09/27/1983US4406951 Hydraulic pump drive system for an automotive vehicle
09/27/1983US4406589 Compressor
09/27/1983US4406588 Compressor suction regulator
09/27/1983CA1154353A1 Crane swing control
09/21/1983EP0089112A1 Variable displacement compressor
09/20/1983US4405292 Pneumatically controlled rate pump
09/20/1983US4405288 Variable displacement hydraulic pump and controls therefor
09/20/1983US4405287 Regulating devices for a plurality of pumps driven by a common source
09/13/1983US4403924 Method and device for regulating the output of diaphragm pumps
09/13/1983US4403921 Multi-cylinder variable delivery compressor
09/13/1983US4403920 Device for regulating the output quantity of a compressed medium
09/07/1983EP0087838A1 Capacity control valve for a compressor
09/07/1983EP0087773A1 Variable displacement pump control system and a valve for such system
08/1983
08/30/1983US4401413 Air compressor switch device
08/24/1983EP0086276A1 Device for maintaining the product of the delivery pressure and delivery rate of an adjustable pump at a constant level
08/16/1983US4398869 Control means for variable displacement pump
08/16/1983CA1152192A1 Electronic constant speed control for a hydrostatic transmission
08/16/1983CA1152185A1 Method and apparatus for transport refrigeration system control
08/10/1983EP0085285A1 Compressor drive system
08/10/1983EP0085247A1 A control device for a compressor in a refrigerating system
08/10/1983EP0085246A1 A control circuit for a variable displacement air conditioning compressor
08/09/1983US4397610 Reciprocable pump with variable speed drive
08/02/1983US4396345 Unloader valve having bypass valving means
08/02/1983CA1151265A1 Compressor motor unit and a method of troubleshooting power supply circuits therefor
07/1983
07/27/1983EP0084070A1 Pressure equalization pumping system
07/26/1983US4395203 Vane compressor having a discharge rate control
07/26/1983US4395199 Control method of a system of internal combustion engine and hydraulic pump
07/26/1983CA1150802A1 Personal sampling pump
07/26/1983CA1150590A1 Flow and pressure compensated valves and pump circuits incorporating the same
07/19/1983USRE31315 Apparatus for converting a pump to a controller
07/19/1983US4393966 Operation control apparatus of a compressor
07/13/1983EP0083491A1 Gerotor pumps
07/12/1983US4392782 Liquid level controller
07/07/1983WO1983002304A1 Pump control with fluid responsive standby pressure
07/05/1983US4391569 Positive displacement pump systems
06/1983
06/28/1983US4390324 Pressure release valve for pumps
06/28/1983CA1148791A1 Combined lift and metering pump
06/22/1983EP0081711A1 Control device for a compressor
06/21/1983US4389168 Apparatus for modulating the capacity of a reciprocating compressor
06/21/1983US4389167 Pump having membrane actuated control valve to unload slave actuated inlet valve
06/21/1983US4389164 Automatic liquid level controller
06/15/1983EP0081076A1 A refrigerant compressor with mechanism for adjusting the capacity of the compressor
06/14/1983US4388052 Fixed displacement pump with variable capacitance flow regulator
06/14/1983US4388048 Stepping type unloading system for helical screw rotary compressor
06/14/1983US4388046 Rotary compressors
06/14/1983US4388044 Water storage tank
06/14/1983US4388043 Conductivity dependent pump and process control