US20080199323A1 - Reciprocating Pump with Electronically Monitored Air Valve and Piston - Google Patents

Reciprocating Pump with Electronically Monitored Air Valve and Piston Download PDF

Info

Publication number
US20080199323A1
US20080199323A1 US11/996,402 US99640206A US2008199323A1 US 20080199323 A1 US20080199323 A1 US 20080199323A1 US 99640206 A US99640206 A US 99640206A US 2008199323 A1 US2008199323 A1 US 2008199323A1
Authority
US
United States
Prior art keywords
valve
air
pump
piston
operated pump
Prior art date
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.)
Abandoned
Application number
US11/996,402
Inventor
Mark L. Bauck
Mark T. Weinberger
David M. Behrens
Vu K. Nguyen
Christopher M. Lange
Wade D. Palashewski
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.)
Graco Minnesota Inc
Original Assignee
Graco Minnesota Inc
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 by Graco Minnesota Inc filed Critical Graco Minnesota Inc
Priority to US11/996,402 priority Critical patent/US20080199323A1/en
Assigned to GRACO MINNESOTA INC. reassignment GRACO MINNESOTA INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BAUCK, MARK L., BEHRENS, DAVID M., LANGE, CHRISTOPHER M., NGUYEN, VU K., PALASHEWSKI, WADE D., WEINBERGER, MARK T.
Publication of US20080199323A1 publication Critical patent/US20080199323A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
    • F04B9/123—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber
    • F04B9/125—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber reciprocating movement of the pumping member being obtained by a double-acting elastic-fluid motor
    • 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
    • F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
    • 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
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • 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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L2003/25—Valve configurations in relation to engine

Definitions

  • Air-operated reciprocating piston pumps are well known for the pumping of various fluids. Such pumps typically have mechanically or pneumatically operated air valves to control the flow of air to the two sides of the piston. Control of such pumps has traditionally been by monitoring and controlling the resulting fluid flow rather than the pump itself. Prior art devices such as Graco's EXTREME-MIXTM proportioner have monitored the position of the piston for purposes of control.
  • the control uses a magnet mounted in the valve cup of the air motor and two reed sensors mounted in the valve cover to monitor the speed and position of the valve.
  • a solenoid is mounted on the valve cover and can be commanded to extend a plunger into the valve cup to stop valve movement and therefore the pump from running away (typically caused by the fluid supply being empty.)
  • the user interface comprises an LCD and buttons to set up and control the pump.
  • the display can be toggled to display cycle rate, flow rate (in various units), total cycles and diagnostic errors. Setup parameters can include fluid units (quarts, liters, etc.) and the runaway set point.
  • the reed switches and magnets are located so as to detect when the air valve is at the extreme position of each stroke or in transition or both.
  • the controller calculates the rate at which the motor is running by counting the opening and closing of the reed switches activated by the varying positions of the air valve.
  • the controller compares that rate to a pre-programmed value to determine if the air motor is in a runaway condition. The that condition is present, the controller activates the solenoid preventing changeover which stops the motor. This acts to prevent spilled fluid and/or pump damage.
  • a magnetoresistive sensor is located in the center of the air motor to precisely monitor the piston position.
  • the data from this sensor in conjunction with that from the air valve sensors provides the input necessary for precise control and diagnostics of the pump and makes it suitable for metering and plural component application.
  • FIG. 1 shows a cross-section of the air valve as part of the instant invention showing the magnets and reed switches.
  • FIG. 2 shows a detail of the FIG. 1 cross-section of the air valve as part of the instant invention.
  • FIG. 3 shows a cross-section (opposite that of FIG. 1 ) of the air valve as part of the instant invention showing the solenoid.
  • FIG. 4 shows a view of a pump incorporating the instant invention.
  • FIG. 5 shows a detail of the user interface of the instant invention.
  • FIG. 6 shows the diagnostic codes which may be obtained by sensing the sir valve.
  • FIG. 7 shows the piston and magnetoresistive sensor.
  • the controller 12 uses a magnet 14 mounted in the valve cup 16 of the air motor 18 and two reed sensors 20 mounted in the valve cover 22 to monitor the speed and position of the valve 16 .
  • a solenoid 24 is mounted on the valve cover 22 and can be commanded to extend a plunger 26 into the valve cup 16 to stop valve movement and therefore the pump 10 from running away (typically caused by the fluid supply being empty or the hose of other supply conduit having a leak/rupture.)
  • the user interface 28 comprises an LCD display 30 and buttons 32 to set up and control the pump 10 .
  • the display 30 can be toggled to display cycle rate, flow rate (in various units), total cycles and diagnostic errors. Setup parameters can include fluid units (quarts, liters, etc.) and the runaway set point.
  • the reed switches 20 and magnets 14 are located so as to detect when the air valve 16 is at the extreme position of each stroke or in transition or both.
  • the controller 12 calculates the rate at which the motor 18 is running by counting the opening and closing of the reed switches 20 activated by the varying positions of the air valve 16 .
  • the controller 12 compares that rate to a pre-programmed value to determine if the air motor 18 is in a runaway condition. The that condition is present, the controller 12 activates the solenoid 24 preventing changeover which stops the motor 18 . This acts to prevent spilled fluid and/or pump damage.
  • a magnetoresistive sensor 34 is located in the center of the air motor 18 to precisely monitor the piston 36 position.
  • the data from this sensor 34 in conjunction with that from the air valve sensors 20 provides the input necessary for precise control and diagnostics of the pump 10 and makes it suitable for metering and plural component application.

Abstract

An air operated pump 10 uses a magnet 14 mounted in the valve cup 16 of the air motor 18 and two reed sensors 20 mounted in the valve cover 22 to monitor the speed and position of the valve 16. A solenoid 24 is mounted on the valve cover 22 and can be commanded to extend a plunger 26 into the valve cup 16 to stop valve movement and therefore the pump from running away. A magnetoresistive sensor 34 is located in the center of the air motor 18 to precisely monitor the piston 36 position and with air valve sensors 20 provides the input necessary for precise control and diagnostics of the pump 10 and makes it suitable for metering and plural component application.

Description

    TECHNICAL FIELD
  • This application claims the benefit of U.S. application Ser. Nos. 60/703,306, filed Jul. 28, 2005 and 60/704,290 filed Aug. 1, 2005.
    • BACKGROUND ART
  • Air-operated reciprocating piston pumps are well known for the pumping of various fluids. Such pumps typically have mechanically or pneumatically operated air valves to control the flow of air to the two sides of the piston. Control of such pumps has traditionally been by monitoring and controlling the resulting fluid flow rather than the pump itself. Prior art devices such as Graco's EXTREME-MIX™ proportioner have monitored the position of the piston for purposes of control.
    • DISCLOSURE OF THE INVENTION
  • It is therefore an object of this invention to provide a system which allows enhanced monitoring and control of a reciprocating air motor so as to allow monitoring of piston position, cycle and flow rates, total cycles, runaway control and the ability to diagnose failing air motor and pump lower components.
  • The control uses a magnet mounted in the valve cup of the air motor and two reed sensors mounted in the valve cover to monitor the speed and position of the valve. A solenoid is mounted on the valve cover and can be commanded to extend a plunger into the valve cup to stop valve movement and therefore the pump from running away (typically caused by the fluid supply being empty.) The user interface comprises an LCD and buttons to set up and control the pump. The display can be toggled to display cycle rate, flow rate (in various units), total cycles and diagnostic errors. Setup parameters can include fluid units (quarts, liters, etc.) and the runaway set point.
  • The reed switches and magnets are located so as to detect when the air valve is at the extreme position of each stroke or in transition or both. The controller calculates the rate at which the motor is running by counting the opening and closing of the reed switches activated by the varying positions of the air valve. The controller then compares that rate to a pre-programmed value to determine if the air motor is in a runaway condition. The that condition is present, the controller activates the solenoid preventing changeover which stops the motor. This acts to prevent spilled fluid and/or pump damage.
  • A magnetoresistive sensor is located in the center of the air motor to precisely monitor the piston position. The data from this sensor in conjunction with that from the air valve sensors provides the input necessary for precise control and diagnostics of the pump and makes it suitable for metering and plural component application.
  • These and other objects and advantages of the invention will appear more fully from the following description made in conjunction with the accompanying drawings wherein like reference characters refer to the same or similar parts throughout the several views.
    • BRIEF DESCRIPTION OF DRAWINGS
  • FIG. 1 shows a cross-section of the air valve as part of the instant invention showing the magnets and reed switches.
  • FIG. 2 shows a detail of the FIG. 1 cross-section of the air valve as part of the instant invention.
  • FIG. 3 shows a cross-section (opposite that of FIG. 1) of the air valve as part of the instant invention showing the solenoid.
  • FIG. 4 shows a view of a pump incorporating the instant invention.
  • FIG. 5 shows a detail of the user interface of the instant invention.
  • FIG. 6 shows the diagnostic codes which may be obtained by sensing the sir valve.
  • FIG. 7 shows the piston and magnetoresistive sensor.
    •  BEST MODE FOR CARRYING OUT THE INVENTION
  • In an air-operated reciprocating piston pump 10, the controller 12 uses a magnet 14 mounted in the valve cup 16 of the air motor 18 and two reed sensors 20 mounted in the valve cover 22 to monitor the speed and position of the valve 16. A solenoid 24 is mounted on the valve cover 22 and can be commanded to extend a plunger 26 into the valve cup 16 to stop valve movement and therefore the pump 10 from running away (typically caused by the fluid supply being empty or the hose of other supply conduit having a leak/rupture.) The user interface 28 comprises an LCD display 30 and buttons 32 to set up and control the pump 10. The display 30 can be toggled to display cycle rate, flow rate (in various units), total cycles and diagnostic errors. Setup parameters can include fluid units (quarts, liters, etc.) and the runaway set point.
  • The reed switches 20 and magnets 14 are located so as to detect when the air valve 16 is at the extreme position of each stroke or in transition or both. The controller 12 calculates the rate at which the motor 18 is running by counting the opening and closing of the reed switches 20 activated by the varying positions of the air valve 16. The controller 12 then compares that rate to a pre-programmed value to determine if the air motor 18 is in a runaway condition. The that condition is present, the controller 12 activates the solenoid 24 preventing changeover which stops the motor 18. This acts to prevent spilled fluid and/or pump damage.
  • A magnetoresistive sensor 34 is located in the center of the air motor 18 to precisely monitor the piston 36 position. The data from this sensor 34 in conjunction with that from the air valve sensors 20 provides the input necessary for precise control and diagnostics of the pump 10 and makes it suitable for metering and plural component application.
  • It is contemplated that various changes and modifications may be made to the pump control without departing from the spirit and scope of the invention as defined by the following claims.

Claims (6)

1. An air operated pump having an air valve with an valve cup and a valve cover, the improvement comprising:
a magnet mounted in said valve cup of said air motor; and
first and second reed sensors mounted in the valve cover to monitor the speed and position of the valve.
2. The air operated pump of claim 1 further comprising a solenoid having a plunger and being mounted on said valve cover said solenoid being capable of extending said plunger into said valve cup to stop valve movement and therefore the pump from running away.
3. The air operated pump of claim 1 further comprising a user interface monitoring said reed sensors to allow the display of various parameters.
4. The air operated pump of claim 3 wherein said parameters may include cycle rate, flow rate, total cycles and diagnostic errors.
5. The air operated pump of claim 1 wherein said air operated pump comprises a piston and further comprising a sensor for sensing the position of said piston.
6. The air operated pump of claim 5 wherein said sensor comprises a magnetoresistive sensor.
US11/996,402 2005-07-28 2006-07-25 Reciprocating Pump with Electronically Monitored Air Valve and Piston Abandoned US20080199323A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/996,402 US20080199323A1 (en) 2005-07-28 2006-07-25 Reciprocating Pump with Electronically Monitored Air Valve and Piston

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US70330605P 2005-07-28 2005-07-28
US70429005P 2005-08-01 2005-08-01
US11/996,402 US20080199323A1 (en) 2005-07-28 2006-07-25 Reciprocating Pump with Electronically Monitored Air Valve and Piston
PCT/US2006/028826 WO2007016081A2 (en) 2005-07-28 2006-07-25 Reciprocating pump with electronically monitored air valve and piston

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/028826 A-371-Of-International WO2007016081A2 (en) 2005-07-28 2006-07-25 Reciprocating pump with electronically monitored air valve and piston

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/498,074 Continuation-In-Part US9677549B2 (en) 2005-07-28 2009-07-06 Reciprocating pump with electronically monitored air valve and piston

Publications (1)

Publication Number Publication Date
US20080199323A1 true US20080199323A1 (en) 2008-08-21

Family

ID=37709113

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/996,402 Abandoned US20080199323A1 (en) 2005-07-28 2006-07-25 Reciprocating Pump with Electronically Monitored Air Valve and Piston

Country Status (13)

Country Link
US (1) US20080199323A1 (en)
EP (1) EP1907806B1 (en)
JP (1) JP5237804B2 (en)
KR (1) KR101197406B1 (en)
CN (1) CN101233321B (en)
AU (1) AU2006275975B2 (en)
BR (1) BRPI0613878A2 (en)
ES (1) ES2395776T3 (en)
PL (1) PL1907806T3 (en)
RU (1) RU2413096C2 (en)
TW (1) TWI475157B (en)
UA (1) UA89254C2 (en)
WO (1) WO2007016081A2 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102322416A (en) * 2011-09-16 2012-01-18 唐山海森电子有限公司 Intelligent control protective cabinet for precision irrigation pump head
US20140138399A1 (en) * 2012-11-19 2014-05-22 Nordson Corporation Adhesive dispensing system and method including a pump with integrated diagnostics
US9120115B2 (en) 2012-10-25 2015-09-01 Nordson Corporation Dispensing systems and methods for monitoring actuation signals for diagnostics
US9200741B2 (en) 2012-10-25 2015-12-01 Nordson Corporation Adhesive dispensing system and method using smart melt heater control
US9540189B2 (en) 2012-09-20 2017-01-10 Nordson Corporation Adhesive dispensing device having optimized cyclonic separator unit
US9574714B2 (en) 2013-07-29 2017-02-21 Nordson Corporation Adhesive melter and method having predictive maintenance for exhaust air filter
US10099242B2 (en) 2012-09-20 2018-10-16 Nordson Corporation Adhesive melter having pump mounted into heated housing
US10099243B2 (en) 2012-09-20 2018-10-16 Nordson Corporation Adhesive dispensing device having optimized reservoir and capacitive level sensor
US20220279329A1 (en) * 2021-02-26 2022-09-01 Yixuan Xu Tethered aerostat communication device, network organizing method and data transmission method thereof

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9677549B2 (en) * 2005-07-28 2017-06-13 Graco Minnesota Inc. Reciprocating pump with electronically monitored air valve and piston
ES2363717T3 (en) * 2005-07-29 2011-08-12 Graco Minnesota Inc. ALTERNATIVE PUMP WITH ELECTRONICALLY MONITORED AIR VALVE THAT HAS A BATTERY AND ELECTRONIC MONITORING BY SOLENOID.
US7603855B2 (en) 2007-04-10 2009-10-20 Illinois Tool Works Inc. Valve with magnetic detents
US7603854B2 (en) 2007-04-10 2009-10-20 Illinois Tool Works Inc. Pneumatically self-regulating valve
US7587897B2 (en) 2007-04-10 2009-09-15 Illinois Tool Works Inc. Magnetically sequenced pneumatic motor
US9003950B2 (en) 2011-09-09 2015-04-14 Ingersoll-Rand Company Air motor having a programmable logic controller interface and a method of retrofitting an air motor
EP3599377B1 (en) 2018-07-24 2020-11-04 Robatech AG Method for determining a volume transported by means of a piston pump and double-acting, pneumatically driven piston pump for carrying out the method
CN113790188B (en) * 2021-09-26 2024-03-12 智涂机器人(深圳)有限公司 Air valve and pneumatic piston pump

Citations (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3813596A (en) * 1973-03-30 1974-05-28 Rca Corp Magnetic reed sensor suitable for use in ignition timing systems
US4300603A (en) * 1980-04-11 1981-11-17 Laub Iii Herman Antidrip volumetric rapid filling machine usable with very viscous substances
US4669960A (en) * 1985-02-26 1987-06-02 Lexair, Inc. Fluid pressure sensor
US4715264A (en) * 1985-02-22 1987-12-29 Kurt Stoll Piston and cylinder unit
US4756669A (en) * 1986-07-31 1988-07-12 Nippon Air Brake Co., Ltd. Air compressor control apparatus
US4806915A (en) * 1987-09-03 1989-02-21 Progressive Assembly Machine Co., Inc. Apparatus for indicating position of a piston within a cylinder
US4915591A (en) * 1986-01-08 1990-04-10 Saphirwerk Industrieprodukte Ag Reciprocating pump and control using outlet valve position sensors
US4990058A (en) * 1989-11-28 1991-02-05 Haliburton Company Pumping apparatus and pump control apparatus and method
US5182704A (en) * 1988-05-18 1993-01-26 Advanced Flow Control Afc Aktiebolag Method and device for regulating the spraying of coating materials
US5259731A (en) * 1991-04-23 1993-11-09 Dhindsa Jasbir S Multiple reciprocating pump system
US5272647A (en) * 1991-01-30 1993-12-21 Combustion Engineering, Inc. Valve diagnostic apparatus and method
US5271121A (en) * 1992-01-21 1993-12-21 Maverick International, Inc. Pneumatic windshield wiper with sensor controlled motor
US5929770A (en) * 1994-03-15 1999-07-27 Tecdis S.P.A. Electronic device for the remote displaying of information
US6152172A (en) * 1999-07-28 2000-11-28 Husco International, Inc. Hall effect valve spool position sensor
US6152702A (en) * 1996-12-05 2000-11-28 Caterpillar Inc. Capacitive sensing apparatus for sensing a plurality of operating parameters associated with a variable displacement piston pump
US20020188382A1 (en) * 2001-06-08 2002-12-12 Sherwood Randall Lee Method and apparatus for monitoring and controlling pump and valve system operations
US20030017055A1 (en) * 2001-07-17 2003-01-23 Fong John J. Constant pressure pump controller system
US6519508B1 (en) * 1999-04-19 2003-02-11 Yokogawa Electric Corporation Valve positioner and current-to-pneumatic converter
US20030170127A1 (en) * 2000-07-24 2003-09-11 Werner Muenzenmaier Thick matter pump
US20030208305A1 (en) * 2002-05-03 2003-11-06 Junk Kenneth W. Method and apparatus for performing diagnostics in a control loop of a control valve
US20030234050A1 (en) * 2002-06-25 2003-12-25 Smc Corporation Manifold value having position detecting mechanism
US20040013531A1 (en) * 2002-05-22 2004-01-22 Applied Materials, Inc. Variable speed pump control
US20040115065A1 (en) * 2002-12-12 2004-06-17 Caterpillar Inc. Sensor for a variable displacement pump
US6799501B2 (en) * 2001-10-26 2004-10-05 Smc Corporation High speed driving method and apparatus of pressure cylinder
US20050000772A1 (en) * 2003-06-11 2005-01-06 Steffen Wohner Device for sensing the axial position, in relation to the other component, of one of two components mobile relative to each other
US6871299B2 (en) * 2001-02-05 2005-03-22 Fisher-Rosemount Systems, Inc. Hierarchical failure management for process control systems
USRE39843E1 (en) * 2000-09-06 2007-09-18 Wineland Gary W Apparatus to attach sensors on equipment with rotating shafts
US20080092960A1 (en) * 2006-10-21 2008-04-24 Peter Manecke Valve system with position sensor

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1187026A (en) * 1966-07-28 1970-04-08 J F Eardley Ltd An Improvement in or relating to Apparatus for Dispensing Liquid.
GB1237701A (en) * 1968-02-02 1971-06-30 Simon Handling Eng Ltd Improvements in or relating to metering pumps of the reciprocating type
JPS5125836B2 (en) * 1972-04-06 1976-08-03
JPS5125836A (en) * 1974-08-28 1976-03-03 Shin Meiwa Ind Co Ltd Supuurubenniokeru supuurukobakusochi
JPS582480U (en) * 1981-06-30 1983-01-08 日産ディーゼル工業株式会社 three-way manual valve
JPS59154456U (en) * 1983-04-01 1984-10-17 三菱自動車工業株式会社 pilot check valve device
JPS61236903A (en) * 1985-04-10 1986-10-22 Hitachi Ltd Direct-acting servovalve
DE3706338A1 (en) * 1987-02-27 1988-09-08 Wagner Gmbh J DIAPHRAGM PUMP DEVICE
JPH0283385U (en) * 1988-12-15 1990-06-27
DE3900718A1 (en) * 1989-01-12 1990-07-26 Depa Ges Fuer Verfahrenstechni METHOD AND DEVICE FOR CONTROLLING A COMPRESSED AIR-OPERATED DOUBLE DIAPHRAGM PUMP
US5360445A (en) * 1991-11-06 1994-11-01 International Business Machines Corporation Blood pump actuator
JPH0614981U (en) * 1992-07-24 1994-02-25 日産自動車株式会社 Position detection device
US5497804A (en) * 1994-06-27 1996-03-12 Caterpillar Inc. Integral position sensing apparatus for a hydraulic directional valve
JPH092041A (en) * 1995-06-20 1997-01-07 Tokico Ltd Car height adjusting device
US5826616A (en) * 1996-11-19 1998-10-27 Isi Norgren, Inc. Valve spool position detector apparatus
JP3083275B2 (en) 1997-09-18 2000-09-04 株式会社ワイ・テイ・エス Double diaphragm pump
CN2323172Y (en) * 1998-04-07 1999-06-09 中国人民解放军防化指挥工程学院机电研究所 Automatic pressure controlling device for high pressure pump
JP2000046504A (en) * 1998-07-24 2000-02-18 Minolta Co Ltd Position detector
JP2000298030A (en) * 1999-04-14 2000-10-24 Fujitsu Ten Ltd Navigation apparatus
JP2001074129A (en) * 1999-09-02 2001-03-23 Bridgestone Cycle Co Automatic transmission
JP2001327500A (en) * 2000-05-19 2001-11-27 Aloka Co Ltd Ultrasonic probe

Patent Citations (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3813596A (en) * 1973-03-30 1974-05-28 Rca Corp Magnetic reed sensor suitable for use in ignition timing systems
US4300603A (en) * 1980-04-11 1981-11-17 Laub Iii Herman Antidrip volumetric rapid filling machine usable with very viscous substances
US4715264A (en) * 1985-02-22 1987-12-29 Kurt Stoll Piston and cylinder unit
US4669960A (en) * 1985-02-26 1987-06-02 Lexair, Inc. Fluid pressure sensor
US4915591A (en) * 1986-01-08 1990-04-10 Saphirwerk Industrieprodukte Ag Reciprocating pump and control using outlet valve position sensors
US4756669A (en) * 1986-07-31 1988-07-12 Nippon Air Brake Co., Ltd. Air compressor control apparatus
US4806915A (en) * 1987-09-03 1989-02-21 Progressive Assembly Machine Co., Inc. Apparatus for indicating position of a piston within a cylinder
US5182704A (en) * 1988-05-18 1993-01-26 Advanced Flow Control Afc Aktiebolag Method and device for regulating the spraying of coating materials
US4990058A (en) * 1989-11-28 1991-02-05 Haliburton Company Pumping apparatus and pump control apparatus and method
US5272647A (en) * 1991-01-30 1993-12-21 Combustion Engineering, Inc. Valve diagnostic apparatus and method
US5259731A (en) * 1991-04-23 1993-11-09 Dhindsa Jasbir S Multiple reciprocating pump system
US5271121A (en) * 1992-01-21 1993-12-21 Maverick International, Inc. Pneumatic windshield wiper with sensor controlled motor
US5929770A (en) * 1994-03-15 1999-07-27 Tecdis S.P.A. Electronic device for the remote displaying of information
US6152702A (en) * 1996-12-05 2000-11-28 Caterpillar Inc. Capacitive sensing apparatus for sensing a plurality of operating parameters associated with a variable displacement piston pump
US6519508B1 (en) * 1999-04-19 2003-02-11 Yokogawa Electric Corporation Valve positioner and current-to-pneumatic converter
US6152172A (en) * 1999-07-28 2000-11-28 Husco International, Inc. Hall effect valve spool position sensor
US20030170127A1 (en) * 2000-07-24 2003-09-11 Werner Muenzenmaier Thick matter pump
USRE39843E1 (en) * 2000-09-06 2007-09-18 Wineland Gary W Apparatus to attach sensors on equipment with rotating shafts
US6871299B2 (en) * 2001-02-05 2005-03-22 Fisher-Rosemount Systems, Inc. Hierarchical failure management for process control systems
US20020188382A1 (en) * 2001-06-08 2002-12-12 Sherwood Randall Lee Method and apparatus for monitoring and controlling pump and valve system operations
US20030017055A1 (en) * 2001-07-17 2003-01-23 Fong John J. Constant pressure pump controller system
US6799501B2 (en) * 2001-10-26 2004-10-05 Smc Corporation High speed driving method and apparatus of pressure cylinder
US20030208305A1 (en) * 2002-05-03 2003-11-06 Junk Kenneth W. Method and apparatus for performing diagnostics in a control loop of a control valve
US20040013531A1 (en) * 2002-05-22 2004-01-22 Applied Materials, Inc. Variable speed pump control
US20030234050A1 (en) * 2002-06-25 2003-12-25 Smc Corporation Manifold value having position detecting mechanism
US20040115065A1 (en) * 2002-12-12 2004-06-17 Caterpillar Inc. Sensor for a variable displacement pump
US20050000772A1 (en) * 2003-06-11 2005-01-06 Steffen Wohner Device for sensing the axial position, in relation to the other component, of one of two components mobile relative to each other
US20080092960A1 (en) * 2006-10-21 2008-04-24 Peter Manecke Valve system with position sensor

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102322416A (en) * 2011-09-16 2012-01-18 唐山海森电子有限公司 Intelligent control protective cabinet for precision irrigation pump head
US10099242B2 (en) 2012-09-20 2018-10-16 Nordson Corporation Adhesive melter having pump mounted into heated housing
US10596588B2 (en) 2012-09-20 2020-03-24 Nordson Corporation Adhesive melter having pump mounted into heated housing
US9540189B2 (en) 2012-09-20 2017-01-10 Nordson Corporation Adhesive dispensing device having optimized cyclonic separator unit
US10099243B2 (en) 2012-09-20 2018-10-16 Nordson Corporation Adhesive dispensing device having optimized reservoir and capacitive level sensor
US9120115B2 (en) 2012-10-25 2015-09-01 Nordson Corporation Dispensing systems and methods for monitoring actuation signals for diagnostics
US9200741B2 (en) 2012-10-25 2015-12-01 Nordson Corporation Adhesive dispensing system and method using smart melt heater control
US10150137B2 (en) 2012-10-25 2018-12-11 Nordson Corporation Adhesive dispensing system and method using smart melt heater control
US9475083B2 (en) 2012-10-25 2016-10-25 Nordson Corporation Adhesive dispensing system and method using smart melt heater control
US9243626B2 (en) * 2012-11-19 2016-01-26 Nordson Corporation Adhesive dispensing system and method including a pump with integrated diagnostics
US9476419B2 (en) 2012-11-19 2016-10-25 Nordson Corporation Adhesive dispensing system and method including a pump with integrated diagnostics
US20140138399A1 (en) * 2012-11-19 2014-05-22 Nordson Corporation Adhesive dispensing system and method including a pump with integrated diagnostics
US9889996B2 (en) 2013-07-29 2018-02-13 Nordson Corporation Adhesive melter and method having predictive maintenance for exhaust air filter
US9574714B2 (en) 2013-07-29 2017-02-21 Nordson Corporation Adhesive melter and method having predictive maintenance for exhaust air filter
US20220279329A1 (en) * 2021-02-26 2022-09-01 Yixuan Xu Tethered aerostat communication device, network organizing method and data transmission method thereof
US11496876B2 (en) * 2021-02-26 2022-11-08 Yixuan Yu Tethered aerostat communication device, network organizing method and data transmission method thereof

Also Published As

Publication number Publication date
PL1907806T3 (en) 2013-02-28
RU2008107573A (en) 2009-09-10
WO2007016081A9 (en) 2007-04-12
JP2009503338A (en) 2009-01-29
JP5237804B2 (en) 2013-07-17
WO2007016081A3 (en) 2007-05-24
RU2413096C2 (en) 2011-02-27
KR20080038136A (en) 2008-05-02
ES2395776T3 (en) 2013-02-15
KR101197406B1 (en) 2012-11-05
EP1907806B1 (en) 2012-10-24
WO2007016081A2 (en) 2007-02-08
CN101233321B (en) 2010-06-16
CN101233321A (en) 2008-07-30
UA89254C2 (en) 2010-01-11
AU2006275975A1 (en) 2007-02-08
EP1907806A4 (en) 2009-09-16
EP1907806A2 (en) 2008-04-09
AU2006275975B2 (en) 2011-08-25
BRPI0613878A2 (en) 2011-02-15
TWI475157B (en) 2015-03-01
TW200726911A (en) 2007-07-16

Similar Documents

Publication Publication Date Title
AU2006275975B2 (en) Reciprocating pump with electronically monitored air valve and piston
US8066491B2 (en) Reciprocating pump with electronically monitored air valve having battery and solenoid electronic monitoring
US9677549B2 (en) Reciprocating pump with electronically monitored air valve and piston
TWI524005B (en) Electronic proportioner using continuous metering and correction
US8851111B2 (en) Electronic proportioner using continuous metering and correction
MX2008001332A (en) Reciprocating pump with electronically monitored air valve and piston
MX2008001463A (en) Reciprocating pump with electronically monitored air valve having battery and solenoid electronic monitoring

Legal Events

Date Code Title Description
AS Assignment

Owner name: GRACO MINNESOTA INC., MINNESOTA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BAUCK, MARK L.;WEINBERGER, MARK T.;BEHRENS, DAVID M.;AND OTHERS;REEL/FRAME:020396/0102

Effective date: 20080102

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION