WO2006017161A8 - Proximity sensor for sensing fluid level in a container - Google Patents

Proximity sensor for sensing fluid level in a container

Info

Publication number
WO2006017161A8
WO2006017161A8 PCT/US2005/024235 US2005024235W WO2006017161A8 WO 2006017161 A8 WO2006017161 A8 WO 2006017161A8 US 2005024235 W US2005024235 W US 2005024235W WO 2006017161 A8 WO2006017161 A8 WO 2006017161A8
Authority
WO
WIPO (PCT)
Prior art keywords
bilge
pump
container
arc
electric field
Prior art date
Application number
PCT/US2005/024235
Other languages
French (fr)
Other versions
WO2006017161A1 (en
Inventor
Roger D Burdi
Bruce L Reniger
Original Assignee
Touchsensor Tech Llc
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 Touchsensor Tech Llc filed Critical Touchsensor Tech Llc
Priority to KR1020077003061A priority Critical patent/KR101217338B1/en
Priority to JP2007520527A priority patent/JP2008506119A/en
Priority to CA002573083A priority patent/CA2573083A1/en
Priority to KR1020127008354A priority patent/KR101292877B1/en
Priority to EP05769214.7A priority patent/EP1766343B1/en
Priority to BRPI0513175-8A priority patent/BRPI0513175A/en
Priority to AU2005271971A priority patent/AU2005271971B2/en
Priority to MX2007000358A priority patent/MX2007000358A/en
Publication of WO2006017161A1 publication Critical patent/WO2006017161A1/en
Publication of WO2006017161A8 publication Critical patent/WO2006017161A8/en

Links

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
    • F04B49/02—Stopping, starting, unloading or idling control
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • 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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
    • F04D15/0218—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid the condition being a liquid level or a lack of liquid supply
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/261—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields for discrete levels
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • G01F23/265—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors for discrete levels
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • G01F23/266—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors measuring circuits therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • G01F23/268—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors mounting arrangements of probes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0266—Marks, test patterns or identification means
    • H05K1/0268—Marks, test patterns or identification means for electrical inspection or testing
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/16—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
    • Y10T29/4913—Assembling to base an electrical component, e.g., capacitor, etc.

Abstract

A sensor system for sensing liquid level in a bilge, for use in automatic bilge pump actuators. First and second field effect sensors are potted or sealed within a container or the bilge wall and are aligned in a vertical array and each comprise a substantially planar pattern of 'electrodes' or conductive traces disposed on a printed circuit board (PCB) along with integrated circuits used to create a loop or arc-shaped electric field. As bilge liquid rises to the proximity or level of the field effect sensors, a change in the arc-shaped electric field is sensed and, in response, a bilge pump is automatically actuated to pump liquid out of the bilge. Optionally, the pump control can be programmed by use of a microprocessor to permit control of on-off timing and prevent undesirable effects of 'sloshing.'
PCT/US2005/024235 2004-07-09 2005-07-08 Proximity sensor for sensing fluid level in a container WO2006017161A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
KR1020077003061A KR101217338B1 (en) 2004-07-09 2005-07-08 Proximity sensor for sensing fluid level in a container
JP2007520527A JP2008506119A (en) 2004-07-09 2005-07-08 Proximity sensor for bilge level detection
CA002573083A CA2573083A1 (en) 2004-07-09 2005-07-08 Proximity sensor for sensing fluid level in a container
KR1020127008354A KR101292877B1 (en) 2004-07-09 2005-07-08 A method of operating a bilge pump
EP05769214.7A EP1766343B1 (en) 2004-07-09 2005-07-08 Proximity sensor for level sensing in a bilge
BRPI0513175-8A BRPI0513175A (en) 2004-07-09 2005-07-08 solid state fluid level sensor
AU2005271971A AU2005271971B2 (en) 2004-07-09 2005-07-08 Proximity sensor for sensing fluid level in a container
MX2007000358A MX2007000358A (en) 2004-07-09 2005-07-08 Proximity sensor for sensing fluid level in a container.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/886,558 US7373817B2 (en) 2004-07-09 2004-07-09 Solid state fluid level sensor
US10/886,558 2004-07-09

Publications (2)

Publication Number Publication Date
WO2006017161A1 WO2006017161A1 (en) 2006-02-16
WO2006017161A8 true WO2006017161A8 (en) 2006-04-20

Family

ID=35148919

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/024235 WO2006017161A1 (en) 2004-07-09 2005-07-08 Proximity sensor for sensing fluid level in a container

Country Status (10)

Country Link
US (6) US7373817B2 (en)
EP (1) EP1766343B1 (en)
JP (1) JP2008506119A (en)
KR (2) KR101292877B1 (en)
CN (1) CN101014838A (en)
AU (1) AU2005271971B2 (en)
BR (1) BRPI0513175A (en)
CA (1) CA2573083A1 (en)
MX (1) MX2007000358A (en)
WO (1) WO2006017161A1 (en)

Families Citing this family (87)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7373817B2 (en) 2004-07-09 2008-05-20 Touchsensor Technologies, Llc Solid state fluid level sensor
JP4560714B2 (en) * 2004-08-04 2010-10-13 スズキ株式会社 Fuel level control device for internal combustion engine
TWI235520B (en) * 2004-09-10 2005-07-01 Antig Tech Co Ltd Device for measuring fuel capacity in fuel cell system
US7625187B2 (en) * 2005-08-24 2009-12-01 Johnson Pumps Of America Inc. Submersible pump with integrated liquid level sensing and control system
JP4616184B2 (en) * 2006-01-31 2011-01-19 日本特殊陶業株式会社 Liquid state detection sensor
EP2013588A2 (en) * 2006-05-04 2009-01-14 TouchSensor Technologies, L.L.C. On-line fluid sensor
US7814788B2 (en) * 2006-10-20 2010-10-19 Abbott Laboratories, Inc. Liquid level sensor
US8380355B2 (en) 2007-03-19 2013-02-19 Wayne/Scott Fetzer Company Capacitive sensor and method and apparatus for controlling a pump using same
GB0706382D0 (en) * 2007-04-02 2007-05-09 Huntleigh Technology Plc Fluid level sensor
US8512513B2 (en) * 2007-08-07 2013-08-20 Sulzer Pumpen Ag Method of and apparatus for controlling the height of a column of material in a vessel upstream of a pump
US8047805B2 (en) * 2007-08-31 2011-11-01 Bourell Jr Alfred M Solid state sump pump control
JP5056431B2 (en) * 2008-01-18 2012-10-24 日立工機株式会社 Dust collector
US7739906B2 (en) * 2008-02-26 2010-06-22 Kyocera Corporation Sensor module, wheel with sensor and tire/wheel assembly
US20100215511A1 (en) * 2009-02-26 2010-08-26 Theodore Eller Level Sensor System
GB0905520D0 (en) * 2009-03-31 2009-05-13 Munster Simms Eng Ltd Strainer for a bilge pump
US20100263458A1 (en) * 2009-04-20 2010-10-21 Itt Manufacturing Enterprises, Inc. Self contained inline field effect fluid detection
IT1394449B1 (en) * 2009-05-26 2012-06-15 Eltek Spa LEVEL SENSOR AND ITS CONTROL CIRCUIT, IN PARTICULAR FOR A VEHICLE FILTER
GB2478232B (en) 2009-06-17 2011-12-07 Vetco Gray Controls Ltd Monitoring of undesirable fluid ingress into subsea control modules
US20110000295A1 (en) * 2009-07-01 2011-01-06 Windward Petroleum Remote level gauge adapted for liquid fuel tank
US20110036164A1 (en) * 2009-07-27 2011-02-17 Touchsensor Technologies, Llc Level sensing controller and method
US20110110794A1 (en) * 2009-11-12 2011-05-12 Philip Mayleben Sensors and methods and apparatus relating to same
US20110110792A1 (en) * 2009-11-12 2011-05-12 Joseph Kendall Mauro Sensors and methods and apparatus relating to same
US20110128154A1 (en) * 2009-12-01 2011-06-02 Flow-Rite Controls, Ltd. Battery electrolyte level indicator
JP5665381B2 (en) * 2010-06-15 2015-02-04 愛三工業株式会社 Liquid level sensor
US20130276533A1 (en) * 2011-01-10 2013-10-24 Strauss Water Ltd. Device for measuring fluid level in a container
US8590375B2 (en) * 2011-03-22 2013-11-26 Rochester Gauges, Inc. Self-calibrating capacitive liquid level sensor assembly and method
US9052226B2 (en) * 2011-04-02 2015-06-09 David Leonard Irwin, IV Autonomous sump pump system
US9692411B2 (en) 2011-05-13 2017-06-27 Flow Control LLC Integrated level sensing printed circuit board
US9410545B2 (en) * 2011-06-02 2016-08-09 Lake Red Rock Llc Solid state bilge pump switch
KR101118916B1 (en) * 2011-07-18 2012-02-27 주식회사 동양이지텍 Water level displaying circuit for boiler of hot-water heating mat
US8864476B2 (en) * 2011-08-31 2014-10-21 Flow Control Llc. Portable battery operated bilge pump
MX2012013390A (en) * 2011-11-18 2013-06-04 Flow Control LLC Rechargeable battery powered utility pump with series centrifugal pump configuration.
JP6352240B2 (en) * 2012-03-30 2018-07-04 フィッシャー アンド ペイケル ヘルスケア リミテッド Humidification system
US9304028B2 (en) * 2012-09-20 2016-04-05 Nordson Corporation Adhesive dispensing device having optimized reservoir and capacitive level sensor
US9169088B2 (en) 2012-09-20 2015-10-27 Nordson Corporation Adhesive dispensing device having optimized cyclonic separator unit
US10099242B2 (en) 2012-09-20 2018-10-16 Nordson Corporation Adhesive melter having pump mounted into heated housing
US9655286B2 (en) * 2012-10-10 2017-05-16 International Business Machines Corporation Facilitating fluid level sensing
US9200741B2 (en) 2012-10-25 2015-12-01 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
US9400201B1 (en) * 2013-02-20 2016-07-26 Aub N. Ward Rising water alarms
DE102013010708A1 (en) * 2013-06-27 2014-12-31 Rechner Industrie-Elektronik Gmbh Capacitive level switch
US9574714B2 (en) 2013-07-29 2017-02-21 Nordson Corporation Adhesive melter and method having predictive maintenance for exhaust air filter
GB2518214A (en) * 2013-09-13 2015-03-18 Energy Solutions Uk Ltd An integrated bilge pump system
US9637202B2 (en) 2013-09-20 2017-05-02 James Russick Method of and system for evacuating fluid in a sea vessel
US9528873B2 (en) 2013-11-26 2016-12-27 Beacon Technical Systems, Llc Test and monitoring system for a sump pump installation having a self-monitoring liquid level sensing module
US9525309B2 (en) 2013-11-26 2016-12-20 Beacon Technical Systems, Llc Battery-powered backup power system for a sump pump installation
US9534606B2 (en) 2013-11-26 2017-01-03 Beacon Technical Systems, Llc Test and monitoring system for a sump pump installation including trend analysis of pump performance
US9404501B2 (en) 2013-11-26 2016-08-02 Beacon Technical Systems, Llc Sump pump test and monitoring system
US9528522B2 (en) 2013-11-26 2016-12-27 Beacon Technical Systems, Llc Test and monitoring system for a sump pump installation having a self-monitoring valve module for admitting water to the sump pit
US9523366B2 (en) 2013-11-26 2016-12-20 Beacon Technical Systems, Llc Test and monitoring system for a sump pump installation having a self-protecting valve assembly for admitting water to the sump container
US9528512B2 (en) 2013-11-26 2016-12-27 Beacon Technical Systems, Llc Test and monitoring system for a battery-powered DC pump installation
US9534593B2 (en) 2013-11-26 2017-01-03 Beacon Technical Systems, Llc Test and monitoring system for a sump pump installation operable from a remote location
US9528523B2 (en) 2013-11-26 2016-12-27 Beacon Technical Systems, Llc Test and monitoring system for a sump pump installation having a variable test cycle time out
US9528520B2 (en) 2013-11-26 2016-12-27 Beacon Technical Systems, Llc Test and monitoring system for a dual sump pump system
KR20170065535A (en) * 2014-10-08 2017-06-13 세미컨덕터 콤포넨츠 인더스트리즈 엘엘씨 Level sensor and method
CN104359523A (en) * 2014-12-08 2015-02-18 黑龙江省中贝技术有限公司 Long-range continuous radio-frequency admittance material level control device
CN105806443B (en) * 2014-12-30 2022-04-19 北京强度环境研究所 Liquid level measuring system of shaking test storage tank
CN204572414U (en) * 2015-04-30 2015-08-19 君禾泵业股份有限公司 Submersible pump
US10224524B2 (en) * 2015-05-15 2019-03-05 Black & Decker, Inc. String trimmer battery housing assembly
US10175085B2 (en) * 2015-11-13 2019-01-08 CiES, Inc. Comparative fuel-level detection system
US10208747B2 (en) 2016-02-09 2019-02-19 Beacon Technical Systems, Llc Trap for pump testing and monitoring systems
JP6618037B2 (en) * 2016-03-28 2019-12-11 Toto株式会社 Capacitive water level sensor
US10371555B2 (en) * 2016-07-21 2019-08-06 Touchsensor Technologies, Llc Capacitive continuous fluid level sensor
US20180072384A1 (en) * 2016-09-15 2018-03-15 CLAY Werner von MUELLER Electronic Bilge Pump Switch with Monitoring and RF Communication, Apparatus and System
EP3301438B1 (en) * 2016-09-30 2020-09-02 Roche Diagniostics GmbH Method for detecting a state of a fluid within a microwell plate
EP3315784B1 (en) * 2016-10-25 2022-10-12 Grundfos Holding A/S Submersible pump unit and method of operating a submersible pump unit
US11267010B2 (en) 2016-10-26 2022-03-08 Carlisle Fluid Technologies, Inc. Systems and methods for a material sensor for a material tank
US11724272B2 (en) 2016-10-26 2023-08-15 Carlisle Fluid Technologies, Inc. Systems and methods for a material sensor for a material pump
US11162496B2 (en) 2016-11-11 2021-11-02 Wayne/Scott Fetzer Company Pump with external electrical components and related methods
WO2018112661A1 (en) * 2016-12-22 2018-06-28 Flex Ltd. Smart marine fleet monitoring systems and methods
US20180223863A1 (en) 2017-02-03 2018-08-09 Flow Control LLC Bilge pump having outside sensing surface with ribs
JP6792473B2 (en) * 2017-02-07 2020-11-25 株式会社Ｆｕｊｉ Parts supply device
EP3631209A1 (en) 2017-05-24 2020-04-08 Bilge Sense Llc Liquid sensing switch
IT201700082600A1 (en) * 2017-07-20 2019-01-20 Eltek Spa DEVICE FOR DETECTION OF THE LEVEL OF A MEDIA
GB2568284B (en) 2017-11-10 2021-09-22 Aspen Pumps Ltd Liquid level sensor and method of controlling a condensate pump
HUE056550T2 (en) 2018-02-06 2022-02-28 Grieshaber Vega Kg Impedance sensor and method for its operation
US10845230B2 (en) 2018-04-18 2020-11-24 Methode Electronics, Inc. Two-wire circuit function by supply modulation
KR102016743B1 (en) * 2018-07-06 2019-09-02 신신전자공업 주식회사 Capacitive water level sensor
US11193481B2 (en) * 2018-10-31 2021-12-07 Charles E. Rupp Sump pump system and control methodology therefor
US11674838B2 (en) 2019-04-04 2023-06-13 Poseidon Systems Llc Capacitive fringe field oil level sensor with integrated humidity and temperature sensing
CN109916961A (en) * 2019-04-10 2019-06-21 浙江数链科技有限公司 A kind of receptacle detection system and surplus test method and device
MX2021002452A (en) * 2020-03-02 2021-10-01 Fna Group Inc Fluid sensing safety.
CN111534841B (en) * 2020-04-14 2021-07-30 北京航空航天大学 Reversible wetting of electric field induced liquid metal on metal substrate and application
US11788918B2 (en) 2020-06-18 2023-10-17 Trevillyan Labs, Llc Fluid detection fabric
WO2022055737A1 (en) * 2020-09-09 2022-03-17 Siemens Healthcare Diagnostics Inc. Sensor array
CN112729051A (en) * 2020-12-08 2021-04-30 广东化一环境科技有限公司 Medium thickness detection device
US11300536B1 (en) 2020-12-18 2022-04-12 Cypress Semiconductor Corporation Non-contact liquid sensing technologies

Family Cites Families (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3588859A (en) * 1969-04-21 1971-06-28 Frank Petree Level detector
US3663838A (en) * 1970-10-16 1972-05-16 Eberhart Reimers Optically triggered thyristor
US3665300A (en) * 1971-03-05 1972-05-23 Gen Electric Liquid layer thickness device having a floating electrode
US4276454A (en) * 1979-03-19 1981-06-30 Zathan William J Water level sensor
CH656702A5 (en) 1979-11-30 1986-07-15 Schmall Karl Heinz Arrangement for compensating disturbing radiation of electromagnetic radio-frequency oscillations in contactless scanning devices
US4800755A (en) * 1982-08-25 1989-01-31 Berwind Corporation Capacitance-type material level indicator
US4875497A (en) * 1984-04-23 1989-10-24 Worthington Ralph T Capacitance liquid level sensing and touch control system
AT397718B (en) * 1986-09-17 1994-06-27 Avl Verbrennungskraft Messtech LEVEL MEASURING DEVICE FOR ELECTRICALLY NON-CONDUCTING LIQUIDS
IT1202723B (en) * 1987-03-31 1989-02-09 Massimo Sanna SYSTEM AND DEVICE FOR DISPENSING PREFIXED QUANTITIES OF LIQUID FROM A DOSING PUMP IN VARIABLE FLOW RATE REGIME
JPS6336246Y2 (en) * 1987-04-23 1988-09-27
US4766329A (en) * 1987-09-11 1988-08-23 Elias Santiago Automatic pump control system
US4881873A (en) 1988-12-14 1989-11-21 Altus Technology Corporation Capacitance level sensor for a bilge pump
US5017909A (en) * 1989-01-06 1991-05-21 Standex International Corporation Capacitive liquid level sensor
US5287086A (en) * 1990-01-02 1994-02-15 Raptor, Inc. Proximity detection system and oscillator
US5145323A (en) 1990-11-26 1992-09-08 Tecumseh Products Company Liquid level control with capacitive sensors
JPH05288592A (en) * 1992-04-09 1993-11-02 Mitsubishi Electric Corp Liquid level detector
US5287068A (en) * 1992-08-27 1994-02-15 Harris Corporation Comparator amplifier
US5411378A (en) * 1992-09-08 1995-05-02 Sipin; Anatole J. Orbiting fluid pump
JP2547929B2 (en) * 1992-10-19 1996-10-30 明豊精機株式会社 Bilge Water Separation / Recovery Equipment for Ships
JPH06194211A (en) * 1992-12-22 1994-07-15 Matsushita Electric Works Ltd Liquid detection sensor
JPH06249963A (en) * 1993-02-25 1994-09-09 Asanumagumi:Kk Object detector
JPH06336246A (en) 1993-05-26 1994-12-06 Kureha Chem Ind Co Ltd Wrap film containing body
US5404048A (en) * 1993-08-06 1995-04-04 Aim Technologies, Inc. Electronic bilge pump switch
US5429727A (en) 1993-09-30 1995-07-04 Arch Development Corporation Electrocatalytic cermet gas detector/sensor
US5425624A (en) 1993-10-22 1995-06-20 Itt Corporation Optical fluid-level switch and controls for bilge pump apparatus
US5985703A (en) 1994-10-24 1999-11-16 Banerjee; Sanjay Method of making thin film transistors
US5594222A (en) * 1994-10-25 1997-01-14 Integrated Controls Touch sensor and control circuit therefor
JPH0943187A (en) * 1995-08-01 1997-02-14 Kobe Steel Ltd Capacitance sensor and capacitance sensor device
US6192752B1 (en) * 1995-08-04 2001-02-27 Zevex, Inc. Noninvasive electromagnetic fluid level sensor
US6218682B1 (en) * 1997-09-19 2001-04-17 Optiswitch Technology Corporation Optically controlled thyristor
US5923102A (en) * 1998-04-20 1999-07-13 Avcheck Corporation Automatic sub-floor pumping system
US6293142B1 (en) * 1998-08-14 2001-09-25 Mts Systems Corporation Electromagnetic method of liquid level monitoring
US6218948B1 (en) * 1998-08-17 2001-04-17 Alfred Dana Bilge sentry
US6320282B1 (en) * 1999-01-19 2001-11-20 Touchsensor Technologies, Llc Touch switch with integral control circuit
US7218498B2 (en) * 1999-01-19 2007-05-15 Touchsensor Technologies Llc Touch switch with integral control circuit
US6305214B1 (en) 1999-08-26 2001-10-23 Sensor Tek, Llc Gas sensor and methods of forming a gas sensor assembly
GB9920301D0 (en) 1999-08-27 1999-11-03 Philipp Harald Level sensing
US6279541B1 (en) * 2000-12-01 2001-08-28 Walbro Corporation Fuel supply system responsive to engine fuel demand
US6479915B2 (en) 2001-03-08 2002-11-12 Hung-Ming Hsueh Structure of a submerged motor
DE10139928A1 (en) * 2001-08-14 2003-04-24 Diehl Ako Stiftung Gmbh & Co Dishwasher-pump drive
US7023215B2 (en) 2003-04-22 2006-04-04 Touchsensor Technologies Llc Field effect sensor two wire interconnect method and apparatus
US7017409B2 (en) 2003-04-22 2006-03-28 Touchsensor Technologies, Llc Proximity sensor for level sensing
US6923056B2 (en) * 2003-10-10 2005-08-02 Delphi Technologies, Inc. Resonant network fluid level sensor assembly
US7093485B2 (en) * 2003-11-17 2006-08-22 Nartron Corporation Fuel level sensor
SE0400111L (en) 2004-01-20 2005-07-21 Peter Wide Sensor arrangement
US6918296B1 (en) 2004-03-04 2005-07-19 Delphi Technologies, Inc. Method of measuring fluid phases in a reservoir
US7210601B2 (en) * 2004-06-04 2007-05-01 Whirlpool Corporation Variable flow water dispenser for refrigerator freezers
US20060007171A1 (en) * 2004-06-24 2006-01-12 Burdi Roger D EMI resistant balanced touch sensor and method
US7373817B2 (en) * 2004-07-09 2008-05-20 Touchsensor Technologies, Llc Solid state fluid level sensor
US7679223B2 (en) * 2005-05-13 2010-03-16 Cree, Inc. Optically triggered wide bandgap bipolar power switching devices and circuits
WO2007002603A2 (en) 2005-06-24 2007-01-04 The Board Of Trustees Of The University Of Illinois Optically-triggered power system and devices
JP2009043187A (en) 2007-08-10 2009-02-26 Canon Inc Adapter device, controlling method for it, and computer program
US20100025238A1 (en) 2008-07-31 2010-02-04 Medtronic Minimed, Inc. Analyte sensor apparatuses having improved electrode configurations and methods for making and using them

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