GB1224292A - Liquid level switch - Google Patents

Liquid level switch

Info

Publication number
GB1224292A
GB1224292A GB4664069A GB4664069A GB1224292A GB 1224292 A GB1224292 A GB 1224292A GB 4664069 A GB4664069 A GB 4664069A GB 4664069 A GB4664069 A GB 4664069A GB 1224292 A GB1224292 A GB 1224292A
Authority
GB
United Kingdom
Prior art keywords
liquid level
container
sept
tube
level switch
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
GB4664069A
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric 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 by International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of GB1224292A publication Critical patent/GB1224292A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01F23/30—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 floats
    • G01F23/64—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 floats of the free float type without mechanical transmission elements
    • G01F23/72—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 floats of the free float type without mechanical transmission elements using magnetically actuated indicating means
    • G01F23/74—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 floats of the free float type without mechanical transmission elements using magnetically actuated indicating means for sensing changes in level only at discrete points
    • 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
    • G01F23/241—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 for discrete levels
    • G01F23/242—Mounting arrangements for electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/02—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by movement of a float carrying a magnet

Abstract

1,224,292. Liquid level control. INTERNATIONAL STANDARD ELECTRIC CORP. Sept. 22, 1969 [Sept.27, 1968], No.46640/69. Heading G1H [Also in Division H1] In a device for initiating switching processes dependent upon the liquid level inside a measuring container 1 of insulating material and in communication with a liquid container, electrodes 3, serving to measure the liquid level and initiate switching operations such as the opening or closing of supply and drain valves, depend from a lid 2 which covers the container 1 and is provided with a tube 4 containing a reed switch 5 on the inside and a float 7, carrying a permanent magnet 6 arranged to move on the outside of the tube 4 with a change in liquid level so that when a maximum liquid level in the container 1 is reached the switch 5 is closed to actuate a drain pump and a warning signal.
GB4664069A 1968-09-27 1969-09-22 Liquid level switch Expired GB1224292A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19686753666 DE6753666U (en) 1968-09-27 1968-09-27 DEVICE FOR TRIGGERING SWITCHING PROCEDURES DEPENDING ON A LIQUID LEVEL.

Publications (1)

Publication Number Publication Date
GB1224292A true GB1224292A (en) 1971-03-10

Family

ID=6593590

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4664069A Expired GB1224292A (en) 1968-09-27 1969-09-22 Liquid level switch

Country Status (3)

Country Link
DE (1) DE6753666U (en)
FR (1) FR2019047A1 (en)
GB (1) GB1224292A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196736A (en) * 1986-10-30 1988-05-05 Cobe Lab Liquid level sensor
EP1725841A2 (en) * 2004-02-13 2006-11-29 BE Intellectual Property, Inc. Electro-optic liquid level sensing system for aircraft beverage brewing
US8127604B2 (en) 2007-10-24 2012-03-06 B/E Intellectual Property, Inc. Liquid level sensor for galley inserts
CN112680931A (en) * 2020-12-10 2021-04-20 珠海格力电器股份有限公司 Liquid storage box, liquid storage box state detection method and washing machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH541864A (en) * 1972-11-08 1973-09-15 Sprecher & Schuh Ag Gas pressure switch

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196736A (en) * 1986-10-30 1988-05-05 Cobe Lab Liquid level sensor
GB2196736B (en) * 1986-10-30 1991-03-06 Cobe Lab Fluid flow apparatus for use in connection with dialysis apparatus
EP1725841A2 (en) * 2004-02-13 2006-11-29 BE Intellectual Property, Inc. Electro-optic liquid level sensing system for aircraft beverage brewing
JP2007522472A (en) * 2004-02-13 2007-08-09 ビーイー・インテレクチュアル・プロパティー・インコーポレイテッド Electro-optic liquid level detection system for beverage extraction for aircraft
EP1725841A4 (en) * 2004-02-13 2007-11-07 Be Intellectual Pty Inc Electro-optic liquid level sensing system for aircraft beverage brewing
US7610804B2 (en) 2004-02-13 2009-11-03 Be Aerospace, Inc. Electro-optic liquid level sensing system for aircraft beverage brewing
US7694559B2 (en) 2004-02-13 2010-04-13 Be Intellectual Property, Inc. Electro-optic liquid level sensing system for aircraft beverage brewing
US7992436B2 (en) 2004-02-13 2011-08-09 Be Intellectual Property, Inc. Electro-optic liquid level sensing system for aircraft beverage brewing
JP2012073259A (en) * 2004-02-13 2012-04-12 Be Intellectual Property Inc Device for detecting surface level of liquid in container
US8302473B2 (en) 2004-02-13 2012-11-06 Be Intellectual Property, Inc. Electro-optic liquid level sensing system for aircraft beverage brewing
US8127604B2 (en) 2007-10-24 2012-03-06 B/E Intellectual Property, Inc. Liquid level sensor for galley inserts
CN112680931A (en) * 2020-12-10 2021-04-20 珠海格力电器股份有限公司 Liquid storage box, liquid storage box state detection method and washing machine

Also Published As

Publication number Publication date
FR2019047A1 (en) 1970-06-26
DE6753666U (en) 1969-06-12

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