ES2086439T3 - Dispositivo de regulacion de riego. - Google Patents
Dispositivo de regulacion de riego.Info
- Publication number
- ES2086439T3 ES2086439T3 ES91112664T ES91112664T ES2086439T3 ES 2086439 T3 ES2086439 T3 ES 2086439T3 ES 91112664 T ES91112664 T ES 91112664T ES 91112664 T ES91112664 T ES 91112664T ES 2086439 T3 ES2086439 T3 ES 2086439T3
- Authority
- ES
- Spain
- Prior art keywords
- drought
- case
- humidity
- signal
- sensitive device
- 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 - Lifetime
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
-
- 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
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Environmental Sciences (AREA)
- Drying Of Gases (AREA)
- Control Of Non-Electrical Variables (AREA)
Abstract
UN DISPOSITIVO SENSIBLE (2) DE HUMEDAD, QUE TRABAJA BAJO EL PRINCIPIO DE UN TENSIOMETRO EN CASO DE SEQUIA COMPLETA PARA LA EMISION DE UNA SEÑAL COMPENSADORA QUE DESCIENDE CUANDO SE ALCANZA EL GRADO DE HUMEDAD MAXIMA, DISPARA UNA SEÑAL EN EL CASO DE SEQUIA, QUE CORRESPONDE A UN GRADO DE HUMEDAD YA PREFIJADO. UNA PROTECCION DE SEQUIA (40) TRABAJA CON EL MISMO DISPOSITIVO DE CONTACTO (24) Y ES ACCIONADA POR EL MISMO ELEMENTO DE MANDO (18) COMO UN DISPOSITIVO SENSIBLE (2) EN SERVICIO NORMAL. EL PUNTO DE CONEXION DE PROTECCION DE SEQUEDAD (40) ES AJUSTABLE EN UNA INSTALACION DE AJUSTE (48). EN CASO DE SEQUIA UNA SEÑAL DADA CONECTA LA CONDUCCION DE AGUA.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19904025690 DE4025690A1 (de) | 1990-08-14 | 1990-08-14 | Bewaesserungs-regelvorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2086439T3 true ES2086439T3 (es) | 1996-07-01 |
Family
ID=6412196
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES91112664T Expired - Lifetime ES2086439T3 (es) | 1990-08-14 | 1991-07-27 | Dispositivo de regulacion de riego. |
Country Status (6)
Country | Link |
---|---|
US (1) | US5224795A (es) |
EP (1) | EP0471231B1 (es) |
AU (1) | AU8147991A (es) |
DE (2) | DE4025690A1 (es) |
ES (1) | ES2086439T3 (es) |
ZA (1) | ZA915918B (es) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6220268B1 (en) | 2000-04-24 | 2001-04-24 | Ross Spencer Bolton | Moisture controlled valve which does not permit partial fluid flow |
AU2001293496B2 (en) * | 2000-09-28 | 2007-12-20 | Frederick John Zass | Automatic irrigation system and control device therefor |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE280026C (es) * | ||||
IL40467A (en) * | 1972-09-29 | 1974-12-31 | Tal A | Tensiometer and automatic irrigation control system utilizing same |
US3874590A (en) * | 1973-10-19 | 1975-04-01 | William H Gibson | Moisture responsive apparatus for controlling moisture content of soil |
DE2435179A1 (de) * | 1974-07-22 | 1976-02-05 | Frenz Friedrich W | Feuchtefuehler zur automatischen steuerung von bewaesserungseinrichtungen fuer pflanzenkulturen |
US4015616A (en) * | 1975-08-25 | 1977-04-05 | Hanff Ludovic F | Automatic watering device |
DE2618540A1 (de) * | 1976-04-28 | 1977-11-10 | Wed Elektronik & Datentechnik | Elektronische regelung fuer bewaesserungen ueber tensiometer, vorzugsweise in gartenbau und landwirtschaft |
US4548225A (en) * | 1981-09-28 | 1985-10-22 | Busalacchi Dwight J | Irrigation control system |
EP0076014A1 (en) * | 1981-09-28 | 1983-04-06 | Dwight J. Busalacchi | Irrigation control system |
DE3428508A1 (de) * | 1984-08-02 | 1986-02-13 | Gardena Kress + Kastner Gmbh, 7900 Ulm | Feuchte-messgeraet |
DE8427544U1 (de) * | 1984-09-19 | 1985-09-26 | Steverding, geb. Ronig, Rosamaria, 4292 Rhede | Vorrichtung zum Steuern der Bewässerung bei Pflanzenzuchtbetrieben |
WO1986004212A1 (en) * | 1985-01-18 | 1986-07-31 | Ipaco, International Patent And Construction Compa | Device for regulating the watering of plants |
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 |
US4763837A (en) * | 1987-06-18 | 1988-08-16 | Zvi Livneh | Frost free irrigation system and valve therefor |
DD280026A1 (de) * | 1989-02-23 | 1990-06-27 | Forschzent Bodenfruchtbarkeit | Tensiometer zur bewaesserungssteuerung |
-
1990
- 1990-08-14 DE DE19904025690 patent/DE4025690A1/de not_active Withdrawn
-
1991
- 1991-07-27 EP EP19910112664 patent/EP0471231B1/de not_active Expired - Lifetime
- 1991-07-27 ES ES91112664T patent/ES2086439T3/es not_active Expired - Lifetime
- 1991-07-27 DE DE59107750T patent/DE59107750D1/de not_active Expired - Fee Related
- 1991-07-29 ZA ZA915918A patent/ZA915918B/xx unknown
- 1991-07-31 AU AU81479/91A patent/AU8147991A/en not_active Abandoned
- 1991-08-14 US US07/744,957 patent/US5224795A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0471231A3 (en) | 1992-06-03 |
AU8147991A (en) | 1992-02-20 |
EP0471231B1 (de) | 1996-05-01 |
DE59107750D1 (de) | 1996-06-05 |
DE4025690A1 (de) | 1992-02-20 |
ZA915918B (en) | 1992-04-29 |
US5224795A (en) | 1993-07-06 |
EP0471231A2 (de) | 1992-02-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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