GB1153006A - Improvements in or relating to Liquid Level Control Systems using Thermistors - Google Patents

Improvements in or relating to Liquid Level Control Systems using Thermistors

Info

Publication number
GB1153006A
GB1153006A GB33654/66A GB3365466A GB1153006A GB 1153006 A GB1153006 A GB 1153006A GB 33654/66 A GB33654/66 A GB 33654/66A GB 3365466 A GB3365466 A GB 3365466A GB 1153006 A GB1153006 A GB 1153006A
Authority
GB
United Kingdom
Prior art keywords
thermistors
control systems
liquid level
level control
relating
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.)
Expired
Application number
GB33654/66A
Inventor
Robert William Couffer
Joseph Michael Algino
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.)
Dole Valve Co
Original Assignee
Dole Valve Co
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 Dole Valve Co filed Critical Dole Valve Co
Priority to GB33654/66A priority Critical patent/GB1153006A/en
Publication of GB1153006A publication Critical patent/GB1153006A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/087—Water level measuring or regulating devices
    • 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
    • G01F23/24—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 resistance of resistors due to contact with conductor fluid
    • G01F23/246—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 resistance of resistors due to contact with conductor fluid thermal devices
    • G01F23/247—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 resistance of resistors due to contact with conductor fluid thermal devices for discrete levels
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/18—Washing liquid level

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

1,153,006. Liquid level control systems. DOLE VALVE CO. July 26, 1966, No.33654/66. Heading G1N. [Also in Division D1] The level of water in a washing machine is sensed by a selected one of a number of thermistors 42, 43, 44 Fig.1 successively covered by the water as it rises in the wash tub 12, the resulting change in temperature and resistance of the selected thermistor stops the water flow and causes the timer to proceed to the next operation in the washing cycle. Level selection is effected by manual operation of a switch 42b, 43b or 44b.
GB33654/66A 1966-07-26 1966-07-26 Improvements in or relating to Liquid Level Control Systems using Thermistors Expired GB1153006A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB33654/66A GB1153006A (en) 1966-07-26 1966-07-26 Improvements in or relating to Liquid Level Control Systems using Thermistors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB33654/66A GB1153006A (en) 1966-07-26 1966-07-26 Improvements in or relating to Liquid Level Control Systems using Thermistors

Publications (1)

Publication Number Publication Date
GB1153006A true GB1153006A (en) 1969-05-21

Family

ID=10355711

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33654/66A Expired GB1153006A (en) 1966-07-26 1966-07-26 Improvements in or relating to Liquid Level Control Systems using Thermistors

Country Status (1)

Country Link
GB (1) GB1153006A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120482A (en) * 1982-04-30 1983-11-30 Jaeger Liquid level monitoring device
CN102251379A (en) * 2011-03-21 2011-11-23 海尔集团公司 Water-level measuring device for small/mini buoyancy washing machines and application method thereof
EP1529875A3 (en) * 2003-11-04 2017-05-17 LG Electronics, Inc. Washing apparatus and control method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120482A (en) * 1982-04-30 1983-11-30 Jaeger Liquid level monitoring device
EP1529875A3 (en) * 2003-11-04 2017-05-17 LG Electronics, Inc. Washing apparatus and control method thereof
CN102251379A (en) * 2011-03-21 2011-11-23 海尔集团公司 Water-level measuring device for small/mini buoyancy washing machines and application method thereof
CN102251379B (en) * 2011-03-21 2016-06-01 海尔集团公司 The level measurement device of a kind of small/micro buoyancy washing machine and using method

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees