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)
05/1995
05/18/1995WO1995013474A1 Control device for a variable volume pump
05/18/1995WO1995008869A3 Driving circuit with several sensors
05/16/1995US5415528 Solution pumping for maximizing output while minimizing uneven pumping pressures
05/16/1995US5415489 Reciprocating driver apparatus
05/16/1995CA2014900C Hydraulic motor-pump system and transmission with variable eccentricities for crankpin cams
05/11/1995DE4439512A1 Piston compressor with changeable displacement
05/11/1995DE4337869A1 Plastering machine
05/10/1995CN2196699Y Power-off alarm for oil-extracting well by use of oil-pumping machine and electric deep-well pump
05/09/1995CA2035842C Device for detecting rupture in the diaphra gm in a double diaphragm pump
05/04/1995WO1995012069A1 Relief valve seat for positive displacement pump
05/04/1995DE4337210A1 Central hydraulic installation for a motor vehicle
04/1995
04/27/1995WO1995011384A1 Unloader device for governed compressor for air brake systems of automotive vehicle
04/27/1995WO1995011152A1 Power-assisted steering system
04/27/1995DE4438827A1 Induction regulator
04/26/1995EP0649722A2 Hydraulic device
04/26/1995CN2195632Y Operating parameter monitor for multi-mechanical pumps
04/25/1995US5409354 Variable displacement pump
04/25/1995US5409032 Pressure washer bypass valve
04/20/1995DE4436883A1 Output control valve for a refrigerant compressor
04/20/1995DE4335429A1 Regulating device for hydraulic machines with variable displacement volume
04/19/1995EP0648931A1 Valve arrangement
04/19/1995EP0648315A1 High-pressure cleaning device.
04/19/1995CN2194988Y Pressure limiting device for inflation of tyre
04/19/1995CA2133795A1 Hydraulic device for supplying a hydraulic driving unit
04/18/1995US5407328 Displacement detector of variable displacement type compressor
04/18/1995US5406922 Self-contained electric-motor fuel pump with outlet pressure regulation
04/13/1995WO1995009981A1 Soft-start pump control system
04/13/1995DE4334167A1 Hydraulic system for loading a hydraulic consumer with a regulated consumer pressure and choke valve in particular for use in such a hydraulic system
04/13/1995CA2173203A1 Soft-start pump control system
04/12/1995EP0647783A1 Air pump
04/06/1995WO1995009305A1 Flow-metered pumping with load compensation system and method
04/06/1995DE4405234C1 Arrangement for the cumulative power regulation of at least two hydrostatic variable-displacement pumps
04/06/1995DE4333591A1 Controller for switching the electric drive motor, in particular of an air compressor, on and off to match the demand
04/06/1995DE4332318A1 Position indicator
04/05/1995EP0646724A1 Method and apparatus for controlling hydraulic systems of construction equipment
04/05/1995CN2194042Y Multi-fucntional protector for water pump
04/04/1995US5402670 Mass measuring system
03/1995
03/30/1995WO1995008869A2 Driving circuit with several sensors
03/29/1995EP0645539A1 Control valve for a variable capacity vane compressor
03/29/1995EP0644791A1 Apparatus and method for supercritical fluid extraction
03/29/1995EP0644782A1 Automated peritoneal dialysis system with detector for recognition of empty supply reservoir and tubing occlusion
03/29/1995CN1100779A Limiting protection structure for radial plunger type hydraulic motor and pump
03/28/1995US5401140 Closed loop sludge flow control system
03/28/1995US5401139 Pumping system
03/28/1995US5400611 Refrigerating cycle machine
03/22/1995CN2192745Y Load-off one-way valve
03/22/1995CN2192744Y High-pressure load-off device for rotor vacuum pump
03/21/1995US5398506 Control system for hydraulic pump system
03/16/1995WO1995007439A1 Pump arrangement for an oil burner and method for regulating the capacity of this oil burner
03/16/1995WO1995007413A1 Vacuum limiter for pump
03/16/1995CA2171324A1 Vacuum limiter for pump
03/15/1995EP0643253A1 Mist lubrication system for an oil or grease air lubrication
03/14/1995US5397219 Integral liquid pump and drainback valve
03/14/1995US5397054 Pressure jet cleaning appliance
03/09/1995WO1995006818A1 Hydraulic control valve block
03/08/1995EP0515639B1 Hydraulic system
03/08/1995EP0493596B1 Capacity control circuit for variable capacity pump
03/08/1995CN2191300Y Self-controlled jet lubricating pump
03/07/1995US5395320 Programmable infusion pump with interchangeable tubing
03/07/1995US5394696 Hydraulic system
03/01/1995EP0640765A1 Electromechanical device for protecting a pump in the absence of water
02/1995
02/28/1995US5393434 Liquid chromatography method
02/28/1995US5393420 Liquid chromatography system
02/28/1995US5393202 Process and device for optimizing the transfer by pumping of multiphase effluents
02/23/1995WO1995005544A1 Capacity control device for variable capacity hydraulic pump
02/23/1995DE4327667A1 Control arrangement for adjustable hydraulic machines
02/23/1995DE4327651A1 Control module for an adjustable hydraulic machine
02/22/1995EP0639099A1 Apparatus and method for supercritical fluid extraction
02/22/1995EP0639098A1 Apparatus for supercritical fluid extraction
02/21/1995US5391058 Fluidic apparatus
02/16/1995DE4327313A1 Method of controlling the pressure of a hydrostatic machine with variable delivery volume
02/15/1995EP0500825B1 Reciprocating pump
02/14/1995US5388967 Compressor start control and air inlet valve therefor
02/14/1995US5388965 Sludge pump with monitoring system
02/09/1995WO1995004219A1 Improved bootstrap power steering systems
02/09/1995WO1995003963A1 Testing and speed control of electric motors in vehicles having electronically controlled braking systems
02/09/1995DE4427479A1 Abmessen von flüsssigen Zusatzstoffen Measure out flüsssigen additives
02/09/1995DE4332947A1 Stroke gearing, in particular for thrust-piston pumps
02/09/1995CA2168093A1 Bootstrap power steering systems
02/02/1995DE4325283A1 Valve system controllable as a function of operation for a vacuum pump
02/01/1995EP0636425A1 Pressure washer with flow control switch
02/01/1995EP0636203A1 Variable displacement pump
02/01/1995CN2188663Y Automatic air-filling pump-pressure-controlling device for bicycle
01/1995
01/31/1995US5385455 Flow control valve
01/29/1995CA2115688A1 Pressure washer with flow control switch
01/26/1995WO1995002426A1 Medical pump and method of programming
01/25/1995EP0635640A1 Bearing structure used in a compressor
01/19/1995WO1995002126A1 Pump controller
01/18/1995EP0634223A1 Improved liquid suction and exhaust device and apparatus for dispersing liquid comprising such a device
01/18/1995EP0633980A1 Scroll machine with overheating protection.
01/17/1995CA1333962C Method and system for controlling a mechanical pump to monitor and optimize both reservoir and equipment performance
01/12/1995DE4322210A1 Apparatus for producing pressure gas
01/11/1995EP0633158A1 Apparatus and method for starting a vehicle with fuel cells
01/11/1995EP0632867A1 Methods and apparatus for recovering pollutants
01/11/1995EP0632866A1 Process for measuring the flow rate of thick matter pumps
01/11/1995EP0584078B1 Overload protective device for a drive motor of a hydraulic pressure generator
01/10/1995US5380176 Valved discharge mechanism in a refrigerant compressor
01/10/1995US5380159 Pressure compensation device for high-pressure liquid pump
01/10/1995US5380158 Apparatus and method for holding a sump pump
01/05/1995WO1995000760A1 Integral liquid pump and drainback valve