US3855129B1 - - Google Patents

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Publication number
US3855129B1
US3855129B1 US23212872A US3855129B1 US 3855129 B1 US3855129 B1 US 3855129B1 US 23212872 A US23212872 A US 23212872A US 3855129 B1 US3855129 B1 US 3855129B1
Authority
US
United States
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
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English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Millipore Investment Holdings Ltd
Waters Technologies Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to US00232128A priority Critical patent/US3855129A/en
Priority to GB1060773A priority patent/GB1429854A/en
Priority to CA165,223A priority patent/CA991950A/en
Priority to FR7307779A priority patent/FR2175029B1/fr
Priority to JP48025942A priority patent/JPS6132620B2/ja
Priority to DE19732366193 priority patent/DE2366193C2/de
Priority to DE2311016A priority patent/DE2311016C3/de
Priority to US05/417,146 priority patent/US3981620A/en
Publication of US3855129A publication Critical patent/US3855129A/en
Priority to US05/546,727 priority patent/US3958898A/en
Application granted granted Critical
Publication of US3855129B1 publication Critical patent/US3855129B1/en
Assigned to MILLIPORE INVESTMENT HOLDINGS LIMITED, A CORP. OF DE reassignment MILLIPORE INVESTMENT HOLDINGS LIMITED, A CORP. OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: WATERS ASSOCIATES, INC., A CORP. OF DE
Anticipated expiration legal-status Critical
Assigned to WATERS TECHNOLOGIES CORPORATION reassignment WATERS TECHNOLOGIES CORPORATION MERGER (SEE DOCUMENT FOR DETAILS). Assignors: WATERS INVESTMENTS LIMITED
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P8/00—Arrangements for controlling dynamo-electric motors rotating step by step
    • H02P8/12—Control or stabilisation of current
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
    • F04B11/005—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons
    • F04B11/0058—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons with piston speed control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/14—Pistons, piston-rods or piston-rod connections
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/26—Conditioning of the fluid carrier; Flow patterns
    • G01N30/28—Control of physical parameters of the fluid carrier
    • G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/26—Conditioning of the fluid carrier; Flow patterns
    • G01N30/28—Control of physical parameters of the fluid carrier
    • G01N30/36—Control of physical parameters of the fluid carrier in high pressure liquid systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/26—Conditioning of the fluid carrier; Flow patterns
    • G01N30/28—Control of physical parameters of the fluid carrier
    • G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
    • G01N2030/324—Control of physical parameters of the fluid carrier of pressure or speed speed, flow rate
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/26—Conditioning of the fluid carrier; Flow patterns
    • G01N30/28—Control of physical parameters of the fluid carrier
    • G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
    • G01N2030/326—Control of physical parameters of the fluid carrier of pressure or speed pumps
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/26—Conditioning of the fluid carrier; Flow patterns
    • G01N30/28—Control of physical parameters of the fluid carrier
    • G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
    • G01N2030/328—Control of physical parameters of the fluid carrier of pressure or speed valves, e.g. check valves of pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Power Engineering (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)
US00232128A 1972-03-06 1972-03-06 Novel pumping apparatus Expired - Lifetime US3855129A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US00232128A US3855129A (en) 1972-03-06 1972-03-06 Novel pumping apparatus
CA165,223A CA991950A (en) 1972-03-06 1973-03-05 Pumping apparatus
FR7307779A FR2175029B1 (de) 1972-03-06 1973-03-05
JP48025942A JPS6132620B2 (de) 1972-03-06 1973-03-05
GB1060773A GB1429854A (en) 1972-03-06 1973-03-05 Control of pumping apparatus
DE2311016A DE2311016C3 (de) 1972-03-06 1973-03-06 Chromatographisches Analysegerät
DE19732366193 DE2366193C2 (de) 1972-03-06 1973-03-06 Verfahren und Einrichtung zum Steuern eines Schrittmotors
US05/417,146 US3981620A (en) 1972-03-06 1973-11-19 Pumping apparatus
US05/546,727 US3958898A (en) 1972-03-06 1975-02-03 Pump control systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00232128A US3855129A (en) 1972-03-06 1972-03-06 Novel pumping apparatus

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US05/417,146 Division US3981620A (en) 1972-03-06 1973-11-19 Pumping apparatus
US05417147 Division 1973-11-19

Publications (2)

Publication Number Publication Date
US3855129A US3855129A (en) 1974-12-17
US3855129B1 true US3855129B1 (de) 1985-10-08

Family

ID=22871976

Family Applications (1)

Application Number Title Priority Date Filing Date
US00232128A Expired - Lifetime US3855129A (en) 1972-03-06 1972-03-06 Novel pumping apparatus

Country Status (6)

Country Link
US (1) US3855129A (de)
JP (1) JPS6132620B2 (de)
CA (1) CA991950A (de)
DE (1) DE2311016C3 (de)
FR (1) FR2175029B1 (de)
GB (1) GB1429854A (de)

Cited By (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3984315A (en) * 1974-04-26 1976-10-05 Chemie Und Filter Gmbh Verfahrenstechnik Kg Electromagnetic metering pump
US3985021A (en) * 1975-11-10 1976-10-12 Varian Associates High performance liquid chromatography system
US3985019A (en) * 1975-11-10 1976-10-12 Boehme Detlef R Liquid chromatography system with solvent proportioning
US4043906A (en) * 1976-03-18 1977-08-23 Varian Associates, Inc. Method and apparatus for reducing the transient effects of liquid compressibility in a liquid chromatography system
US4045343A (en) * 1975-11-10 1977-08-30 Varian Associates, Inc. High pressure liquid chromatography system
US4131393A (en) * 1977-01-21 1978-12-26 Altex Scientific, Inc. Fluid pump mechanism
US4137011A (en) * 1977-06-14 1979-01-30 Spectra-Physics, Inc. Flow control system for liquid chromatographs
US4180375A (en) * 1977-01-21 1979-12-25 Altex Scientific, Inc. Liquid chromatography pump
US4225290A (en) * 1979-02-22 1980-09-30 Instrumentation Specialties Company Pumping system
US4245963A (en) * 1979-02-09 1981-01-20 Waters Associates, Inc. Pump
US4281687A (en) * 1979-02-09 1981-08-04 Waters Associates, Inc. Fluid storage device
US4294799A (en) * 1980-04-24 1981-10-13 Beckman Instruments, Inc. Temperature regulating apparatus
EP0073906A2 (de) * 1981-09-09 1983-03-16 ISCO, Inc. Verfahren und Vorrichtung für die Temperaturkorrektion in Flüssigkeitschromatographie
EP0106009A1 (de) * 1982-06-29 1984-04-25 Shimadzu Corporation Flüssigkeitschromatograph
USRE31586E (en) * 1977-01-21 1984-05-15 Altex Scientific, Inc. Liquid chromatography pump
USRE31608E (en) * 1977-01-21 1984-06-19 Altex Scientific, Inc. Fluid pump mechanism
US4556538A (en) * 1981-03-27 1985-12-03 Toyo Soda Manufacturing Co., Inc. Chromatographic apparatus
US4624625A (en) * 1981-10-08 1986-11-25 Hewlett-Packard Company High pressure metering pump
EP0217318A2 (de) 1981-09-09 1987-04-08 ISCO, Inc. Verfahren und Vorrichtung für die Flüssigkeitschromatographie
EP0236982A2 (de) * 1986-03-10 1987-09-16 ISCO, Inc. Pumpe
WO1988004235A1 (fr) * 1986-12-10 1988-06-16 Imaje S.A. Cellule a multiples fonctions comportant une chambre a volume variable et circuit d'alimentation fluide d'une tete d'impression a jet d'encre qui en est equipe
FR2608225A1 (fr) * 1986-12-10 1988-06-17 Imaje Sa Cellule a multiples fonctions comportant une chambre a volume variable, et circuit d'alimentation fluide d'une tete d'impression a jet d'encre qui en est equipe
US4917575A (en) * 1986-05-02 1990-04-17 The Dow Chemical Company Liquid chromatographic pump
EP0408177A1 (de) * 1989-06-08 1991-01-16 Beckman Instruments, Inc. Rückschlagventilpatronen mit kontrollierbarer Druckabdichtung
EP0433649A1 (de) * 1989-11-17 1991-06-26 ASKOLL S.p.A. Dosierpumpe für Flüssigkeiten
US5587082A (en) * 1995-06-07 1996-12-24 Teraoka; Iwao High osmotic pressure chromatography
US5861317A (en) * 1996-04-23 1999-01-19 Shimadzu Corporation Automatic sample injector and method of operating same
WO2002099852A2 (en) * 2001-05-30 2002-12-12 Senx Technology Novel piezoelectric transducer assemblies and methods for their use
US20040136833A1 (en) * 2003-01-10 2004-07-15 Allington Robert W. High pressure reciprocating pump and control of the same
US20040202575A1 (en) * 2003-04-09 2004-10-14 Allington Robert W. Signal to noise ratio in chromatography
US20040205422A1 (en) * 2003-04-09 2004-10-14 Allington Robert W. Signal to noise ratio in chromatography
US20040204866A1 (en) * 2003-04-09 2004-10-14 Allington Robert W. Method and apparatus to enhance the signal to noise ratio in chromatography
US20040204864A1 (en) * 2003-04-09 2004-10-14 Allington Robert W. Signal to noise ratio in chromatography
US20050053471A1 (en) * 2003-08-14 2005-03-10 Lg Electronics Inc. Apparatus for controlling operation of reciprocating compressor
US20100012192A1 (en) * 2006-04-12 2010-01-21 Waters Investments Limited Active valve and methods of operation thereof
US20100158704A1 (en) * 2006-07-25 2010-06-24 Waters Technologies Corporation Compliant-seal check valve
GB2483348A (en) * 2010-08-30 2012-03-07 Bosch Gmbh Robert A fluid assembly and a method for controlling a pressure supply unit of the fluid assembly
US20150075230A1 (en) * 2012-03-22 2015-03-19 Wuxi Little Swan Co., Ltd. Washing Machine And Detergent Delivery Pump Assembly Thereof
US20150345484A1 (en) * 2012-09-11 2015-12-03 Warner DÖBELIN Syringe pump system for pulse-free metering and precise mixing in hplc uhplc, micro-hplc and nano-hplc
US20160088978A1 (en) * 2011-10-19 2016-03-31 Bobrick Washroom Equipment, Inc. Automated fluid dispensing system
CN105546046A (zh) * 2016-01-28 2016-05-04 北京星达科技发展有限公司 非圆齿轮组和泵用传动结构
US9649436B2 (en) 2011-09-21 2017-05-16 Bayer Healthcare Llc Assembly method for a fluid pump device for a continuous multi-fluid delivery system
CN107327382A (zh) * 2016-04-29 2017-11-07 殷图源 一种新型柱塞泵
CN108361168A (zh) * 2018-02-05 2018-08-03 南京航空航天大学 基于双重活塞错时补偿策略的连续平稳型计量泵
US10507319B2 (en) 2015-01-09 2019-12-17 Bayer Healthcare Llc Multiple fluid delivery system with multi-use disposable set and features thereof

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855129A (en) 1972-03-06 1974-12-17 Waters Associates Inc Novel pumping apparatus
DE2366193C2 (de) * 1972-03-06 1984-10-11 Waters Associates, Inc., Framingham, Mass. Verfahren und Einrichtung zum Steuern eines Schrittmotors
GB1595254A (en) * 1978-01-25 1981-08-12 Berelson R Pumping unit for dishwashing machines
DE2922689A1 (de) * 1978-06-07 1979-12-13 Magnussen Jun Pumpvorrichtung
FR2461126A1 (fr) * 1978-12-15 1981-01-30 Gilson Medical Electronic Fran Pompe a piston a debit reglable precisement
DE3035770C2 (de) * 1980-09-23 1984-08-16 Bruker Analytische Meßtechnik GmbH, 7512 Rheinstetten Mehrfach-Kolbenpumpe mit konstanter Förderleistung
GB2144282B (en) * 1981-09-08 1985-09-18 Epson Corp Speed control device for a stepping motor
GB2113315B (en) * 1982-01-11 1986-05-21 Hewlett Packard Co An improved high pressure meter pump
JPS58181511U (ja) * 1982-05-31 1983-12-03 トヨタ車体株式会社 合成樹脂成形用型
JPH0631618B2 (ja) * 1985-01-23 1994-04-27 株式会社日立製作所 トルク制御式密閉形圧縮機
JPH06349B2 (ja) * 1989-02-10 1994-01-05 工業技術院長 繊維強化熱可塑性合成樹脂の成形用金型
DE102018110918A1 (de) * 2018-05-07 2019-11-07 Lutz Holding GmbH Verfahren zum Betrieb einer Doppelmembranpumpe

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1911294U (de) 1964-12-16 1965-03-04 Bollhoff & Co Verriegelungsvorrichtung.
US3411058A (en) 1965-01-19 1968-11-12 Superior Electric Co Acceleration deceleration control circuit for a stepping motor
US3488030A (en) 1966-08-17 1970-01-06 Halliburton Co Electrical motor operated valve
US3446057A (en) * 1966-10-14 1969-05-27 Varian Associates Method and apparatus for chromatography
US3466517A (en) 1966-12-15 1969-09-09 Superior Electric Co Numerically controlled motor system
DE2121433A1 (de) 1970-04-30 1971-12-09 Ultra Electronics Ltd Verfahren und Vorrichtung zum Betrieb eines Schrittschaltmotors
DE2032875A1 (de) 1970-07-02 1972-01-27 Superior Electric Co Schrittschaltmotor Steuerkreis
US3855129A (en) 1972-03-06 1974-12-17 Waters Associates Inc Novel pumping apparatus

Cited By (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3984315A (en) * 1974-04-26 1976-10-05 Chemie Und Filter Gmbh Verfahrenstechnik Kg Electromagnetic metering pump
US3985021A (en) * 1975-11-10 1976-10-12 Varian Associates High performance liquid chromatography system
US3985019A (en) * 1975-11-10 1976-10-12 Boehme Detlef R Liquid chromatography system with solvent proportioning
US4045343A (en) * 1975-11-10 1977-08-30 Varian Associates, Inc. High pressure liquid chromatography system
FR2370977A1 (de) * 1975-11-10 1978-06-09 Varian Associates
US4043906A (en) * 1976-03-18 1977-08-23 Varian Associates, Inc. Method and apparatus for reducing the transient effects of liquid compressibility in a liquid chromatography system
USRE31586E (en) * 1977-01-21 1984-05-15 Altex Scientific, Inc. Liquid chromatography pump
US4180375A (en) * 1977-01-21 1979-12-25 Altex Scientific, Inc. Liquid chromatography pump
US4131393A (en) * 1977-01-21 1978-12-26 Altex Scientific, Inc. Fluid pump mechanism
USRE31608E (en) * 1977-01-21 1984-06-19 Altex Scientific, Inc. Fluid pump mechanism
US4137011A (en) * 1977-06-14 1979-01-30 Spectra-Physics, Inc. Flow control system for liquid chromatographs
US4245963A (en) * 1979-02-09 1981-01-20 Waters Associates, Inc. Pump
US4281687A (en) * 1979-02-09 1981-08-04 Waters Associates, Inc. Fluid storage device
US4225290A (en) * 1979-02-22 1980-09-30 Instrumentation Specialties Company Pumping system
US4294799A (en) * 1980-04-24 1981-10-13 Beckman Instruments, Inc. Temperature regulating apparatus
US4556538A (en) * 1981-03-27 1985-12-03 Toyo Soda Manufacturing Co., Inc. Chromatographic apparatus
EP0073906A2 (de) * 1981-09-09 1983-03-16 ISCO, Inc. Verfahren und Vorrichtung für die Temperaturkorrektion in Flüssigkeitschromatographie
EP0073906A3 (en) * 1981-09-09 1984-04-18 Isco, Inc. Apparatus and method for temperature correction of liquid chromatography
EP0217318A2 (de) 1981-09-09 1987-04-08 ISCO, Inc. Verfahren und Vorrichtung für die Flüssigkeitschromatographie
US4624625A (en) * 1981-10-08 1986-11-25 Hewlett-Packard Company High pressure metering pump
EP0106009A1 (de) * 1982-06-29 1984-04-25 Shimadzu Corporation Flüssigkeitschromatograph
EP0236982A2 (de) * 1986-03-10 1987-09-16 ISCO, Inc. Pumpe
US4733152A (en) * 1986-03-10 1988-03-22 Isco, Inc. Feedback system
EP0236982A3 (en) * 1986-03-10 1989-11-08 Isco, Inc. Pump
US4917575A (en) * 1986-05-02 1990-04-17 The Dow Chemical Company Liquid chromatographic pump
WO1988004235A1 (fr) * 1986-12-10 1988-06-16 Imaje S.A. Cellule a multiples fonctions comportant une chambre a volume variable et circuit d'alimentation fluide d'une tete d'impression a jet d'encre qui en est equipe
FR2608225A1 (fr) * 1986-12-10 1988-06-17 Imaje Sa Cellule a multiples fonctions comportant une chambre a volume variable, et circuit d'alimentation fluide d'une tete d'impression a jet d'encre qui en est equipe
EP0277453A1 (de) * 1986-12-10 1988-08-10 Imaje S.A. Mehrzweckzelle mit einem veränderlichen Rauminhalt und damit versehene Flüssigkeitszufuhrschaltung eines Tintenstrahlschreibkopfes
US4910529A (en) * 1986-12-10 1990-03-20 Imaje Sa Multifunction cell with a variable volume chamber and a fluid supply circuit for an ink jet printing head
US4998116A (en) * 1986-12-10 1991-03-05 Imaje Sa Multifunctional cell with a variable volume chamber and a fluid supply circuit for an ink jet printing head
EP0408177A1 (de) * 1989-06-08 1991-01-16 Beckman Instruments, Inc. Rückschlagventilpatronen mit kontrollierbarer Druckabdichtung
EP0433649A1 (de) * 1989-11-17 1991-06-26 ASKOLL S.p.A. Dosierpumpe für Flüssigkeiten
US5587082A (en) * 1995-06-07 1996-12-24 Teraoka; Iwao High osmotic pressure chromatography
US5861317A (en) * 1996-04-23 1999-01-19 Shimadzu Corporation Automatic sample injector and method of operating same
WO2002099852A2 (en) * 2001-05-30 2002-12-12 Senx Technology Novel piezoelectric transducer assemblies and methods for their use
WO2002099852A3 (en) * 2001-05-30 2004-02-19 Senx Technology Novel piezoelectric transducer assemblies and methods for their use
US6997683B2 (en) 2003-01-10 2006-02-14 Teledyne Isco, Inc. High pressure reciprocating pump and control of the same
US20040136833A1 (en) * 2003-01-10 2004-07-15 Allington Robert W. High pressure reciprocating pump and control of the same
US20040151594A1 (en) * 2003-01-10 2004-08-05 Allington Robert W. High pressure reciprocating pump and control of the same
US7037081B2 (en) 2003-01-10 2006-05-02 Teledyne Isco, Inc. High pressure reciprocating pump and control of the same
US20040204864A1 (en) * 2003-04-09 2004-10-14 Allington Robert W. Signal to noise ratio in chromatography
US20040204866A1 (en) * 2003-04-09 2004-10-14 Allington Robert W. Method and apparatus to enhance the signal to noise ratio in chromatography
US20040205422A1 (en) * 2003-04-09 2004-10-14 Allington Robert W. Signal to noise ratio in chromatography
US20040202575A1 (en) * 2003-04-09 2004-10-14 Allington Robert W. Signal to noise ratio in chromatography
US20050053471A1 (en) * 2003-08-14 2005-03-10 Lg Electronics Inc. Apparatus for controlling operation of reciprocating compressor
US7385368B2 (en) 2003-08-14 2008-06-10 Lg Electronics Inc. Apparatus for controlling operation of reciprocating compressor
US8297589B2 (en) 2006-04-12 2012-10-30 Waters Technologies Corp Active valve and methods of operation thereof
US20100012192A1 (en) * 2006-04-12 2010-01-21 Waters Investments Limited Active valve and methods of operation thereof
US20100158704A1 (en) * 2006-07-25 2010-06-24 Waters Technologies Corporation Compliant-seal check valve
US8671975B2 (en) 2006-07-25 2014-03-18 Waters Technologies Corporation Compliant-seal check valve
CN102410186A (zh) * 2010-08-30 2012-04-11 罗伯特·博世有限公司 用于触发流体设备的供压单元的方法和相应的流体设备
GB2483348A (en) * 2010-08-30 2012-03-07 Bosch Gmbh Robert A fluid assembly and a method for controlling a pressure supply unit of the fluid assembly
CN102410186B (zh) * 2010-08-30 2017-04-12 罗伯特·博世有限公司 用于触发流体设备的供压单元的方法和相应的流体设备
US9649436B2 (en) 2011-09-21 2017-05-16 Bayer Healthcare Llc Assembly method for a fluid pump device for a continuous multi-fluid delivery system
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GB1429854A (en) 1976-03-31
DE2311016A1 (de) 1973-09-20
US3855129A (en) 1974-12-17
FR2175029A1 (de) 1973-10-19
FR2175029B1 (de) 1974-05-17
CA991950A (en) 1976-06-29
JPS4947908A (de) 1974-05-09
JPS6132620B2 (de) 1986-07-28
DE2311016C3 (de) 1979-07-26
DE2311016B2 (de) 1978-11-23

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