ZA200002030B - A liquid level control device. - Google Patents

A liquid level control device.

Info

Publication number
ZA200002030B
ZA200002030B ZA200002030A ZA200002030A ZA200002030B ZA 200002030 B ZA200002030 B ZA 200002030B ZA 200002030 A ZA200002030 A ZA 200002030A ZA 200002030 A ZA200002030 A ZA 200002030A ZA 200002030 B ZA200002030 B ZA 200002030B
Authority
ZA
South Africa
Prior art keywords
control device
liquid level
level control
liquid
level
Prior art date
Application number
ZA200002030A
Inventor
Ah N Fah
Original Assignee
Ah N Fah
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 Ah N Fah filed Critical Ah N Fah
Publication of ZA200002030B publication Critical patent/ZA200002030B/en

Links

Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K21/00—Fluid-delivery valves, e.g. self-closing valves
    • F16K21/04—Self-closing valves, i.e. closing automatically after operation
    • F16K21/18—Self-closing valves, i.e. closing automatically after operation closed when a rising liquid reaches a predetermined level
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K33/00—Floats for actuation of valves or other apparatus
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Water Supply & Treatment (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Control Of Non-Electrical Variables (AREA)
  • Float Valves (AREA)
ZA200002030A 1997-10-20 2000-04-25 A liquid level control device. ZA200002030B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPO9899A AUPO989997A0 (en) 1997-10-20 1997-10-20 A liquid level control device

Publications (1)

Publication Number Publication Date
ZA200002030B true ZA200002030B (en) 2001-10-29

Family

ID=3804178

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA200002030A ZA200002030B (en) 1997-10-20 2000-04-25 A liquid level control device.

Country Status (4)

Country Link
AU (1) AUPO989997A0 (en)
MY (1) MY130127A (en)
WO (1) WO1999020100A1 (en)
ZA (1) ZA200002030B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2498542B (en) * 2012-01-19 2013-12-04 Hydrogarden Wholesale Supplies Ltd Valve assembly
AU2013201059A1 (en) * 2012-02-23 2013-09-12 Ah Ngau Fah Improved liquid level device for effective crop growth
GB2547069B (en) * 2016-11-17 2018-03-07 Ralph Smith Jason Liquid level control device
JP7028450B2 (en) * 2018-08-01 2022-03-02 株式会社ガーデン二賀地 Intermittent water replenisher

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4864771A (en) * 1988-05-19 1989-09-12 Fah Ah N Automatic plant watering and feeding system
AU636542B2 (en) * 1989-07-28 1993-04-29 Ah N. Fah Liquid level control device
AU4692393A (en) * 1992-08-19 1994-03-15 Ah N. Fah Liquid level control device

Also Published As

Publication number Publication date
WO1999020100A1 (en) 1999-04-29
MY130127A (en) 2007-06-29
AUPO989997A0 (en) 1997-11-13

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