| 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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| 10/10/1995 | US5457626 Bimodal liquid chromatography pump employing artificial intelligence logic feedback control |
| 10/10/1995 | US5456581 Control system for a multi-piston pump with solenoid valves for the production of constant outlet pressure flow |
| 10/10/1995 | US5456115 Method of counterflow through a pump and method of controlling the operation of a pump in a pumping installation |
| 10/05/1995 | WO1995026470A1 Variable displacement electro-hydraulic pump |
| 10/05/1995 | WO1995026462A1 Two-section pump |
| 10/05/1995 | WO1995026461A1 Pump control system |
| 10/05/1995 | DE4410865A1 Control of pump used to circulate hot water to provide heating |
| 10/05/1995 | DE4410719A1 Elektrohydraulisch verstellbare Pumpe Electric adjustable pump |
| 10/05/1995 | DE19512154A1 Determination of wear in pump |
| 10/05/1995 | DE19512153A1 Pump wear detection device for protecting hydraulic system |
| 10/05/1995 | CA2185529A1 Pump control system |
| 10/03/1995 | US5454223 Hydraulic load sensing system with poppet valve having an orifice therein |
| 09/28/1995 | DE4410156A1 Control system for variable output pump |
| 09/28/1995 | DE4409114A1 Pump system control device |
| 09/27/1995 | EP0673328A1 Power-assisted steering system. |
| 09/26/1995 | US5452989 Reverse phase and high discharge temperature protection in a scroll compressor |
| 09/21/1995 | WO1995025227A1 Directional control valve |
| 09/21/1995 | WO1995025223A1 Low power electromagnetic pump |
| 09/21/1995 | DE4408879A1 Brake circuit with motor for hydraulic pump |
| 09/20/1995 | EP0672831A2 Apparatus and method for supercritical fluid extraction |
| 09/20/1995 | EP0462241B1 Peristaltic pump motor drive |
| 09/20/1995 | CN2208110Y Multi-functional protective controller for beam-pumping unit |
| 09/19/1995 | US5451146 Scroll-type variable-capacity compressor with bypass valve |
| 09/19/1995 | US5450987 Pumping system with failure responsive discharge valve |
| 09/19/1995 | US5450743 Method for providing constant flow in liquid chromatography system |
| 09/14/1995 | WO1995024557A1 Variable displacement type compressor |
| 09/12/1995 | US5450316 Electronic process controller having password override |
| 09/12/1995 | US5449180 Safety device for primary pump |
| 09/12/1995 | CA2005011C Wobble plate type refrigerant compressor |
| 09/06/1995 | EP0670426A1 Circuit capable of varying pump discharge volume in closed center-load sensing system |
| 08/30/1995 | CN1029640C Low-speed start and run controller for beam pumping unit |
| 08/24/1995 | WO1995022694A1 Device for regulating the total output of at least two hydrostatic variable displacement pumps |
| 08/23/1995 | EP0668113A1 High-pressure cleaning device |
| 08/23/1995 | EP0504415B1 Control system of hydraulic pump |
| 08/23/1995 | EP0372081B1 Hydraulic control unit of hydraulic excavators |
| 08/23/1995 | CN2205877Y Relief type disklike valve for reciprocating pump |
| 08/22/1995 | US5443587 Injection molding machine control having motor slip compensator |
| 08/22/1995 | US5443187 Pump apparatus for pumping melt metal |
| 08/17/1995 | DE4405472A1 Hydraulic control for excavator with several hydraulic user units |
| 08/16/1995 | EP0667452A1 Capacity control device in variable capacity hydraulic pump |
| 08/16/1995 | EP0667451A1 Hydraulic pump control device for construction machinery |
| 08/16/1995 | EP0617758B1 Initial pressure governor for a variable displacement pump |
| 08/16/1995 | CN2205456Y Damping cup body structure of air pressure regulating group |
| 08/15/1995 | US5441389 Eddy current drive and motor control system for oil well pumping |
| 08/10/1995 | DE4403618A1 Piston pump with booster pump |
| 08/10/1995 | DE19503360A1 Pump with precise flow regulation |
| 08/09/1995 | EP0633980A4 Scroll machine with overheating protection. |
| 08/08/1995 | US5439070 Hydraulic power steering apparatus |
| 08/03/1995 | WO1995020723A1 Hydraulic actuator for pressure switch of fluidic system |
| 08/02/1995 | EP0665044A1 Apparatus and method for supercritical fluid extraction |
| 08/01/1995 | US5438510 User interface and monitoring functions for automated peritoneal dialysis systems |
| 08/01/1995 | US5437218 Diaphragm pump having variable displacement |
| 07/27/1995 | CA2140198A1 Hydraulic actuator for pressure switch of fluidic system |
| 07/26/1995 | EP0664603A1 Pump motor controller |
| 07/26/1995 | EP0663986A1 Process for operating a dry-compression vacuum pump |
| 07/26/1995 | CN1105739A Pressure washer with flow control switch |
| 07/25/1995 | US5435379 Method and apparatus for low-temperature semiconductor processing |
| 07/25/1995 | CA2127722C Body support system |
| 07/20/1995 | DE4401083A1 Fuel injection unit for IC engine |
| 07/20/1995 | DE4401074A1 IC engine fuel pump system |
| 07/20/1995 | DE4401073A1 Motor vehicle fuel pump |
| 07/20/1995 | DE19500541A1 Reversible double flow pump for lifting installation |
| 07/19/1995 | EP0663553A1 Water distribution system |
| 07/19/1995 | CA2139898A1 Pump motor controller |
| 07/13/1995 | DE4411951C1 Spray gun pump motor rotation reversal control system |
| 07/12/1995 | EP0662057A1 Process and circuit arrangement for regulating the flow rate of an hydraulic pump. |
| 07/12/1995 | CN2203365Y Corrosion-resistant plunger for oil pump |
| 07/11/1995 | US5431545 Pumper system for in-situ pigging applications |
| 07/05/1995 | EP0660902A1 Submersible well probe sleeve |
| 07/05/1995 | CN2202808Y Pressure-limiting inflator |
| 07/04/1995 | US5429484 Liquid feed pump particularly used for liquid medicine and liquid feed apparatus for filling of liquid medicine |
| 06/29/1995 | DE4446832A1 Variable displacement piston compressor for vehicle air conditioning system |
| 06/29/1995 | DE4446296A1 Hydraulic control of pump driven by IC engine |
| 06/29/1995 | DE4446087A1 Variable displacement piston compressor |
| 06/27/1995 | US5427506 Compressor pressure relief assembly |
| 06/22/1995 | DE4342587A1 Hydraulic appts. with electric motor driven pump and pressure-limiting valve |
| 06/21/1995 | CN1103943A Refrigerating cycle machine |
| 06/21/1995 | CN1029023C Slant plate type combressor with variable displacement mechanism |
| 06/20/1995 | US5425624 Optical fluid-level switch and controls for bilge pump apparatus |
| 06/20/1995 | US5425623 Rod pump beam position determination from motor power |
| 06/14/1995 | CN2200710Y Safety device of roll-in pump |
| 06/14/1995 | CN1103703A Hydraulic automatic control high pressure reciprocating pump |
| 06/14/1995 | CN1028892C Pressure ratio responsive unloader |
| 06/13/1995 | US5424636 Process and device for detecting revolutions of a rotating element by twice fourier transform |
| 06/08/1995 | WO1995015468A1 Improvement in the electronic control arrangement for motor-driven refrigeration compressors |
| 06/08/1995 | DE4441375A1 Operation of hydraulic motor(s) |
| 06/06/1995 | US5421705 Overload protective device for an internal combustion engine acting as a drive motor of a main pump of a hydraulic pressure generator |
| 06/06/1995 | US5421208 Instantaneous volume measurement system and method for non-invasively measuring liquid parameters |
| 06/06/1995 | CA2045457C High-pressure cleaning appliance |
| 05/31/1995 | EP0655107A1 Programmable infusion pump with interchangeable tubing |
| 05/31/1995 | CN2199332Y Pawl-centrifugal return preventing device for ground driving screw oil extracting pump |
| 05/24/1995 | EP0654890A1 Device for driving a single phase synchronous motor, especially for driving a pump in a household appliance |
| 05/24/1995 | EP0654278A2 Volumetric pump/valve |
| 05/24/1995 | DE4406869C1 High pressure cleaning device |
| 05/24/1995 | CN2198416Y Anti-theft control cabinet for motor of oil pump |
| 05/24/1995 | CN2198415Y 压力调节器 Pressure regulator |
| 05/23/1995 | US5417649 Fluid transfusing device and method of control therefor |
| 05/23/1995 | US5417239 Fuel transfer control apparatus |
| 05/23/1995 | CA2033253C Phase adjustable metering pump, and method of adjusting the flow rate thereof |
| 05/23/1995 | CA2032019C Valveless, positive displacement pump including living hinge foe angular adjustment, and method of making same |