ZA79990B - A method of controlling the relative humidity in a soil environment and apparatus for accomplishing same - Google Patents

A method of controlling the relative humidity in a soil environment and apparatus for accomplishing same

Info

Publication number
ZA79990B
ZA79990B ZA79990A ZA79990A ZA79990B ZA 79990 B ZA79990 B ZA 79990B ZA 79990 A ZA79990 A ZA 79990A ZA 79990 A ZA79990 A ZA 79990A ZA 79990 B ZA79990 B ZA 79990B
Authority
ZA
South Africa
Prior art keywords
controlling
relative humidity
soil environment
accomplishing same
accomplishing
Prior art date
Application number
ZA79990A
Other languages
English (en)
Inventor
L Ornstein
Original Assignee
L Ornstein
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 L Ornstein filed Critical L Ornstein
Publication of ZA79990B publication Critical patent/ZA79990B/xx

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
    • A01G25/00—Watering gardens, fields, sports grounds or the like
    • A01G25/16—Control of watering
    • A01G25/167—Control by humidity of the soil itself or of devices simulating soil or of the atmosphere; Soil humidity sensors
    • 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
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/02—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm
    • F16K7/04—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D22/00—Control of humidity
    • 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
    • Y10T137/00—Fluid handling
    • Y10T137/0318—Processes
    • 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
    • Y10T137/00—Fluid handling
    • Y10T137/1842—Ambient condition change responsive
    • Y10T137/1866—For controlling soil irrigation
    • Y10T137/189—Soil moisture sensing

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Soil Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Cultivation Of Plants (AREA)
ZA79990A 1978-03-02 1979-03-02 A method of controlling the relative humidity in a soil environment and apparatus for accomplishing same ZA79990B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/882,789 US4182357A (en) 1978-03-02 1978-03-02 Method of controlling the relative humidity in a soil environment and apparatus for accomplishing same

Publications (1)

Publication Number Publication Date
ZA79990B true ZA79990B (en) 1980-05-28

Family

ID=25381334

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA79990A ZA79990B (en) 1978-03-02 1979-03-02 A method of controlling the relative humidity in a soil environment and apparatus for accomplishing same

Country Status (17)

Country Link
US (1) US4182357A (xx)
EP (1) EP0004159B1 (xx)
JP (1) JPS55500270A (xx)
AU (1) AU530311B2 (xx)
CA (1) CA1104547A (xx)
DD (1) DD142141A1 (xx)
DE (1) DE2967548D1 (xx)
EG (1) EG14122A (xx)
ES (1) ES478274A1 (xx)
IL (1) IL56768A0 (xx)
IN (1) IN151887B (xx)
MX (1) MX147749A (xx)
OA (1) OA06407A (xx)
PL (1) PL213873A1 (xx)
SU (1) SU1715186A3 (xx)
WO (1) WO1979000694A1 (xx)
ZA (1) ZA79990B (xx)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4440378A (en) * 1981-10-16 1984-04-03 Sullivan Michael P Flow control apparatus
US4655076A (en) * 1984-01-23 1987-04-07 Raychem Corporation Moisture measuring apparatus
US4535914A (en) * 1984-02-21 1985-08-20 Coty Raymond J A Automatic larvicide dispenser
GB8512813D0 (en) * 1985-05-21 1985-06-26 Hlp Gardening Products Ltd Fluid flow control valve
US4862701A (en) * 1986-09-25 1989-09-05 Nv Raychem Sa Moisture detection
US4805343A (en) * 1986-10-20 1989-02-21 Southeastern Illinois College Foundation Osmotic fiber systems
US4938248A (en) * 1987-05-04 1990-07-03 Irro-Controls Group Moisture and pressure sensitive fluid control circuit
US4922945A (en) * 1987-05-04 1990-05-08 Irro-Controls Group Self-servicing hydraulic tensiometer with electrical switching and response capabilities
DE3733440A1 (de) * 1987-10-02 1989-04-13 Sick Optik Elektronik Erwin Verfahren und vorrichtung zum ergaenzen der naehrloesung von hydrokulturen
US5273066A (en) * 1988-06-10 1993-12-28 Graham Neil B Control valves and method of plant growing using flow control
GB8813839D0 (en) * 1988-06-10 1988-07-13 Graham N B Growing plants
WO1991002455A1 (en) * 1989-08-23 1991-03-07 Emil Richard Smith Valve apparatus
US5186431A (en) * 1989-09-22 1993-02-16 Yehuda Tamari Pressure sensitive valves for extracorporeal circuits
FR2657139B1 (fr) * 1990-01-12 1992-07-03 Hutchinson Dispositif formant vanne de commande d'irrigation, en particulier pour plantes en pots.
FR2663193B1 (fr) * 1990-06-14 1993-03-26 Hutchinson Dispositif de culture de plantes en pot, a grande reserve d'eau.
US5329081A (en) * 1992-01-17 1994-07-12 Morningside Holdings Pty. Ltd. Moisture sensor and switch
AUPN034294A0 (en) * 1994-12-30 1995-01-27 Moss Products Pty Ltd Moisture transducer
US5853122A (en) * 1996-11-12 1998-12-29 Caprio; Alphonse E. Relative humidity sensitive irrigation valve control
AUPP781798A0 (en) * 1998-12-21 1999-01-21 Ragless, Clive Lindsay Matric potential responder improvements
AT409552B (de) * 2000-04-06 2002-09-25 Oesterr Forsch Seibersdorf Messsonde
US6220268B1 (en) 2000-04-24 2001-04-24 Ross Spencer Bolton Moisture controlled valve which does not permit partial fluid flow
HUP0103249A2 (hu) * 2001-08-09 2005-08-29 Emil Richard Smith Szabályozott átfolyáskorlátozó berendezés
US20050087231A1 (en) * 2003-10-14 2005-04-28 Sanders Larry C. Non-electronic, automatically controlled valving system utilizing expanding/contracting material
GB0516532D0 (en) * 2005-08-11 2005-09-21 Guest John Int Ltd Improvements in or relating to liquid flow control devices
GB0516530D0 (en) * 2005-08-11 2005-09-21 Guest John Int Ltd Improvements in or relating to liquid flow control devices
GB0624631D0 (en) * 2006-12-08 2007-01-17 Brown Michael E Moisture responsive device and method
CN101292621B (zh) * 2007-04-29 2011-12-07 杨庆理 长水器、长水器灌溉系统及其在盐碱地改造中的应用
US8371325B1 (en) 2010-01-25 2013-02-12 Hunter Industries, Inc. Soil moisture responsive irrigation flow control valve
WO2011115494A1 (en) * 2010-03-18 2011-09-22 Statoil Asa Flow control device and flow control method
GB201010799D0 (en) 2010-06-28 2010-08-11 Smart Tech Ltd Devices containing swellable material, flow apparatus incorporating such devices and methods of use thereof
CN103477948B (zh) * 2013-09-30 2014-10-22 中国农业大学 用于盐碱地的灌溉控制方法与系统
US10782261B2 (en) * 2014-03-25 2020-09-22 The Procter & Gamble Company Apparatus for sensing environmental humidity changes
ES2563102B1 (es) * 2014-09-09 2016-12-27 Ramón Vicente PEREZ ESTEVE Emisor de riego con control higroscópico autónomo
WO2016070005A1 (en) * 2014-10-31 2016-05-06 Rain Bird Corporation Soil moisture sensing valves and devices
WO2016161992A2 (zh) * 2015-10-13 2016-10-13 中国农业科学院农田灌溉研究所 新型无压灌溉装置
US20180328513A1 (en) * 2015-11-13 2018-11-15 Rain Bird Corporation Moisture sensing valves and devices
WO2018067625A1 (en) * 2016-10-04 2018-04-12 Lafian Jesse Tensiometer apparatus and method
CN111278275B (zh) 2017-09-06 2023-06-23 索里德李普公司 自主灌溉系统

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3204872A (en) * 1961-06-12 1965-09-07 Alfred L Whear Moisture responsive actuator
DK103647C (da) * 1962-04-03 1966-01-31 Thure Henning Hansson Apparat til regulering af væsketilførslen til en jordoverflade, f. eks. i urtepotter.
US3295088A (en) * 1964-10-14 1966-12-27 Johnson Service Co Electrical humidity sensing element
US3426539A (en) * 1965-02-02 1969-02-11 Alfred L Whear Moisture actuated device
US3518831A (en) * 1967-11-02 1970-07-07 Dawson Inc Alexander Method and apparatus for subterranean irrigation
US3596744A (en) * 1968-04-27 1971-08-03 Vladimir Yakovlevich Chesnokov Coin-testing apparatus
US3833013A (en) * 1972-04-06 1974-09-03 Baxter Laboratories Inc Self-valving fluid reservoir and bubble trap
DE2325980A1 (de) * 1973-04-05 1974-10-17 Knut Bertil Edenhorn Geraet zum steuern des fluessigkeitsflusses durch eine leitung zum zufuehren von fluessigkeit zu einem fluessigkeitsabsorbierenden material
US3898843A (en) * 1973-05-22 1975-08-12 Methven & Co Limited G On-off flow control device and irrigation system incorporating same
US3874590A (en) * 1973-10-19 1975-04-01 William H Gibson Moisture responsive apparatus for controlling moisture content of soil
DE2513600A1 (de) * 1975-03-27 1976-10-07 Rainer Ing Grad Schwemmle Feuchtigkeitsgeregeltes ventil
US4015616A (en) * 1975-08-25 1977-04-05 Hanff Ludovic F Automatic watering device
CH607128A5 (xx) * 1976-03-25 1978-11-30 Elektrowatt Ag
US4064086A (en) * 1976-07-13 1977-12-20 National Patent Development Corporation Thermoplastic hydrogels

Also Published As

Publication number Publication date
ES478274A1 (es) 1979-12-16
EP0004159B1 (en) 1985-11-27
EP0004159A1 (en) 1979-09-19
AU530311B2 (en) 1983-07-14
IN151887B (xx) 1983-08-27
US4182357A (en) 1980-01-08
EG14122A (en) 1983-09-30
OA06407A (fr) 1981-08-31
CA1104547A (en) 1981-07-07
MX147749A (es) 1983-01-10
SU1715186A3 (ru) 1992-02-23
AU4477279A (en) 1979-10-18
JPS55500270A (xx) 1980-05-08
PL213873A1 (xx) 1979-11-05
WO1979000694A1 (en) 1979-09-20
DD142141A1 (de) 1980-06-11
IL56768A0 (en) 1979-05-31
DE2967548D1 (en) 1986-01-09

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