Patents
Sitemap › F04 - Positive-displacement machines for liquids; Pumps for liquids or elastic fluids › F04B - Positive-displacement machines for liquids; Pumps › F04B 13 - Pumps specially modified to deliver fixed or variable measured quantities
Patents for F04B 13 - Pumps specially modified to deliver fixed or variable measured quantities (2,234)
12/1998
12/10/1998WO1998055199A1 Active pump phasing to enhance chromatographic reproducibility
12/03/1998WO1998053777A1 Solid state fluid delivery system
12/03/1998CA2297180A1 Solid state fluid delivery system
11/1998
11/26/1998WO1998053208A1 Reciprocating diaphragm pump with packless piston-cylinder unit
11/04/1998CN2296410Y Transmitter for waste water flow
10/1998
10/14/1998EP0870924A2 Feeding device with dosing pumps
10/14/1998EP0870109A1 Fluid delivery device
09/1998
09/17/1998WO1998040309A1 A condiment dispensing apparatus
09/16/1998EP0536267B1 Adjustable rotor for a radial piston fluid machine
08/1998
08/20/1998WO1998035888A1 Metering valve for aerosols
08/20/1998DE19710379C1 Suction throttled hydraulic pump for vehicle
08/20/1998CA2280012A1 Metering valve for aerosols
07/1998
07/23/1998WO1998031935A1 Linear peristaltic pump
07/16/1998DE19701035A1 Pump set of regulating mechanism for stepped application of solns. in medical field
06/1998
06/23/1998US5769615 Single-piston fluid displacement pump
06/03/1998EP0729435A4 Fluid-driven apparatus for dispensing plural fluids in a precise proportion
05/1998
05/26/1998US5755561 Piston pumping system delivering fluids with a substantially constant flow rate
05/13/1998EP0776424A4 Direct action fluid motor and injection pump
04/1998
04/29/1998EP0837988A1 Dosing pump
02/1998
02/03/1998US5713486 Quick-charge and-discharge dispensing system for liquid indirectly weighed in a dispenser
01/1998
01/13/1998US5707212 Apparatus for precisely controlling the feeding of viscous and non-viscous liquid products into a packaging machine
01/06/1998US5704767 Integral pump and flow meter device
01/06/1998US5704405 Process and apparatus for filling insulating glass panes with heavy gas
12/1997
12/18/1997DE19623537A1 Metering pump for viscous fluids
12/17/1997CN2270822Y Pressure-measuring, air-charging and air-releasing device for movable tyre
12/03/1997EP0810422A1 Quick-charge and -discharge dispensing system for liquid indirectly weighed in a dispenser
12/03/1997EP0749530B1 Dosing cap
11/1997
11/04/1997US5683232 Pump particularly useful in respirator apparatus and exhalation valve assembly thereof
10/1997
10/14/1997US5676527 Air pump having an adjustable stroke
10/02/1997WO1997035659A1 Process for conveying materials and device for implementing it
09/1997
09/25/1997DE19611339A1 Verfahren zum Fördern von Werkstoffen und Vorrichtung zur Durchführung des Verfahrens A method for conveying materials and apparatus for performing the method
09/24/1997EP0680561B1 Dosing arrangement
09/12/1997WO1997033090A1 Metering pump
09/04/1997WO1997032128A1 Pump
08/1997
08/27/1997EP0791138A1 Metering pump with an air-purge device
07/1997
07/10/1997WO1997024529A1 Fluid delivery device
06/1997
06/04/1997EP0776424A1 Direct action fluid motor and injection pump
06/03/1997US5634777 Radial piston fluid machine and/or adjustable rotor
06/03/1997US5634492 Compressor valve lifter
05/1997
05/21/1997EP0670010B1 Mixing pump
05/21/1997CN1150221A Electromagnetic pumps
05/13/1997CA2031993C Variable stroke metering pump with damping and pump cycle duration control
03/1997
03/12/1997EP0761966A2 Pump displacement control for a variable displacement pump
02/1997
02/12/1997EP0757757A1 Single-piston, multi-mode fluid displacement pump
02/04/1997US5599177 Precision metered multiple fluid pumping system
01/1997
01/30/1997WO1997003290A1 Dosing pump
01/30/1997DE19625648A1 Pumpsystem Pumping system
01/16/1997DE19525557A1 Dosierpumpe Metering pump
01/02/1997EP0751296A1 Internal gear pump
12/1996
12/31/1996US5588813 Fluid motor driven pump arrangement having motive fluid exhaust into the pump chamber
12/27/1996EP0749530A1 Dosing cap
11/1996
11/20/1996CN1136305A Fluid-driven apparatus for dispersing plural fluids in a precise proportion
11/13/1996CN1033288C High molecular polymer measuring pump
11/06/1996EP0740641A1 Process and device for the conveyance and measuring of medical liquids
10/1996
10/22/1996US5567123 Pump displacement control for a variable displacement pump
10/16/1996CN2237737Y Hand-hydraulic pump
10/09/1996EP0736689A1 Measuring and injection pumps assembly
09/1996
09/25/1996EP0733768A2 Method and apparatus for dosing gas
09/24/1996US5558116 Metering cap
09/19/1996DE19509242A1 Hose pump
09/04/1996EP0729435A1 Fluid-driven apparatus for dispensing plural fluids in a precise proportion
09/04/1996EP0592411B1 Apparatus for repetitively dispensing a measured volume of liquid
08/1996
08/20/1996US5547348 Radial piston fluid machine and/or adjustable rotor
08/14/1996EP0726375A1 Modular pump with controlled injection
07/1996
07/30/1996US5540562 Single-piston, multi-mode fluid displacement pump
07/17/1996EP0722044A2 Integral pump and flow meter device
07/12/1996CA2166952A1 Integral pump and flow meter device
06/1996
06/04/1996US5522711 Precision metered multiple fluid pumping system
05/1996
05/23/1996WO1996015370A1 Metering pump with an air-purge device
05/21/1996US5518377 Vertical metering pump having piston biasing elastomeric gasket
05/15/1996DE4439962A1 Dosierpumpe mit Entlüftungseinrichtung Dosing with primer
05/07/1996US5513963 Direct action fluid motor and injection pump
05/01/1996EP0709572A1 Pumping system with pistons displacing fluids at a constant flow rate
05/01/1996CN1121583A Method and device for completing simultaneously liquid transferring, measuring and flow controlling
04/1996
04/24/1996CN2225554Y Clutch type water pump
04/16/1996US5507624 Sludge Pump
04/11/1996WO1996010697A1 A positive displacement pump
04/09/1996US5505224 Device for controlling piston displacement and pump including same
03/1996
03/20/1996CN1118714A Apparatus for combining liquids
03/20/1996CN1118699A Pump particularly useful in respirator apparatus and exhalation valve assembly therefor
02/1996
02/22/1996WO1996005428A1 Direct action fluid motor and injection pump
02/14/1996EP0696480A1 Membrane pump
01/1996
01/16/1996US5484270 Pump particularly useful in respirator apparatus and exhalation valve assembly therefor
01/04/1996WO1996000363A1 Metering valve for lubricants
12/1995
12/21/1995DE4420694A1 Dosage pump for liquids or pastes, especially plastics resin
12/13/1995EP0686770A2 Valve unloader finger
12/06/1995EP0536267A4 Radial piston fluid machine and/or adjustable rotor
11/1995
11/29/1995EP0684383A1 Fluid dosing pump
11/16/1995WO1995030491A1 Apparatus and method for spray and other dispensing
11/12/1995CA2148857A1 Compressor valve lifter
11/09/1995WO1995030089A1 Single-piston, multi-mode fluid displacement pump
11/09/1995CA2188952A1 Single-piston, multi-mode fluid displacement pump
11/08/1995EP0680561A1 Dosing arrangement.
11/07/1995CA2083933C Ground-driven hydraulic pump system
10/1995
10/26/1995DE4412703A1 Solvent mixt. prodn. for high pressure liq. chromatography
10/11/1995EP0676339A2 Dispenser for metering two liquid or paste products in the required proportions
09/1995
09/14/1995WO1995024556A1 Dosing cap
09/06/1995EP0670010A1 Mixing pump.
08/1995
08/30/1995EP0669141A2 Piston pump and exhalation valve
08/23/1995CN2205875Y Hydraulic cylinder part for plastic nest type metering diaphragm pump
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