AU636542B2 - Liquid level control device - Google Patents

Liquid level control device

Info

Publication number
AU636542B2
AU636542B2 AU21106/92A AU2110692A AU636542B2 AU 636542 B2 AU636542 B2 AU 636542B2 AU 21106/92 A AU21106/92 A AU 21106/92A AU 2110692 A AU2110692 A AU 2110692A AU 636542 B2 AU636542 B2 AU 636542B2
Authority
AU
Australia
Prior art keywords
control device
liquid level
level control
liquid
level
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.)
Ceased
Application number
AU21106/92A
Other versions
AU2110692A (en
Inventor
Ah N. Fah
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.)
Individual
Original Assignee
Individual
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
Priority claimed from AU39092/89A external-priority patent/AU630877B2/en
Priority to AU21106/92A priority Critical patent/AU636542B2/en
Application filed by Individual filed Critical Individual
Publication of AU2110692A publication Critical patent/AU2110692A/en
Application granted granted Critical
Publication of AU636542B2 publication Critical patent/AU636542B2/en
Priority to PCT/AU1993/000422 priority patent/WO1994004971A1/en
Priority to GB9502953A priority patent/GB2284263B/en
Priority to US08/387,838 priority patent/US5671562A/en
Priority to MYPI93001649A priority patent/MY111189A/en
Priority to AU46923/93A priority patent/AU4692393A/en
Priority to JP6505681A priority patent/JPH08500974A/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
    • G05D9/02—Level control, e.g. controlling quantity of material stored in vessel without auxiliary power
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G27/00—Self-acting watering devices, e.g. for flower-pots
    • A01G27/003—Controls for self-acting watering devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
AU21106/92A 1989-07-28 1992-08-19 Liquid level control device Ceased AU636542B2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
AU21106/92A AU636542B2 (en) 1989-07-28 1992-08-19 Liquid level control device
PCT/AU1993/000422 WO1994004971A1 (en) 1992-08-19 1993-08-18 Liquid level control device
JP6505681A JPH08500974A (en) 1992-08-19 1993-08-18 Liquid level controller
AU46923/93A AU4692393A (en) 1992-08-19 1993-08-18 Liquid level control device
MYPI93001649A MY111189A (en) 1992-08-19 1993-08-18 Liquid level control device.
GB9502953A GB2284263B (en) 1992-08-19 1993-08-18 Liquid level control device
US08/387,838 US5671562A (en) 1992-08-19 1993-08-18 Liquid level control device

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AU630877 1989-07-28
AU39092/89A AU630877B2 (en) 1989-07-28 1989-07-28 Improved automatic plant watering and feeding system
AU21106/92A AU636542B2 (en) 1989-07-28 1992-08-19 Liquid level control device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
AU39092/89A Division AU630877B2 (en) 1989-07-28 1989-07-28 Improved automatic plant watering and feeding system

Publications (2)

Publication Number Publication Date
AU2110692A AU2110692A (en) 1992-10-22
AU636542B2 true AU636542B2 (en) 1993-04-29

Family

ID=25618108

Family Applications (1)

Application Number Title Priority Date Filing Date
AU21106/92A Ceased AU636542B2 (en) 1989-07-28 1992-08-19 Liquid level control device

Country Status (1)

Country Link
AU (1) AU636542B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2561371A (en) * 2017-04-11 2018-10-17 Wai Wong Ka Irrigation system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPO989997A0 (en) * 1997-10-20 1997-11-13 Fah, Ah N. A liquid level control device
AU2004200168B2 (en) * 1997-10-20 2006-12-07 Ah N. Fah A liquid level control device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2818877A (en) * 1957-03-29 1958-01-07 Fritz O Swanson Watering system for plants and the like
US2837867A (en) * 1955-08-01 1958-06-10 Charles R Courtenay Constant feed plant watering apparatus
EP0194235A2 (en) * 1985-02-07 1986-09-10 F.A.P. di Ermini Franco & Figlio S.n.c. A pot holder irrigator with a float feeding from a tank

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2837867A (en) * 1955-08-01 1958-06-10 Charles R Courtenay Constant feed plant watering apparatus
US2818877A (en) * 1957-03-29 1958-01-07 Fritz O Swanson Watering system for plants and the like
EP0194235A2 (en) * 1985-02-07 1986-09-10 F.A.P. di Ermini Franco & Figlio S.n.c. A pot holder irrigator with a float feeding from a tank

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2561371A (en) * 2017-04-11 2018-10-17 Wai Wong Ka Irrigation system
GB2561371B (en) * 2017-04-11 2019-07-31 Wai Wong Ka Irrigation system

Also Published As

Publication number Publication date
AU2110692A (en) 1992-10-22

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired