BE576907A - Constant level head device, more especially for hydroculture devices. - Google Patents

Constant level head device, more especially for hydroculture devices.

Info

Publication number
BE576907A
BE576907A BE576907A BE576907A BE576907A BE 576907 A BE576907 A BE 576907A BE 576907 A BE576907 A BE 576907A BE 576907 A BE576907 A BE 576907A BE 576907 A BE576907 A BE 576907A
Authority
BE
Belgium
Prior art keywords
hydroculture
devices
head device
constant level
level head
Prior art date
Application number
BE576907A
Other languages
French (fr)
Original Assignee
Brevesa S A
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 Brevesa S A filed Critical Brevesa S A
Priority to BE576907A priority Critical patent/BE576907A/en
Priority to ES0250080A priority patent/ES250080A1/en
Priority to FR17431A priority patent/FR1227050A/en
Publication of BE576907A publication Critical patent/BE576907A/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
    • A01G31/00—Soilless cultivation, e.g. hydroponics
    • A01G31/02—Special apparatus therefor
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/01—Control of flow without auxiliary power
    • G05D7/0173—Control of flow without auxiliary power using pivoting sensing element acting as a valve mounted within the flow-path
    • 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
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
    • Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
BE576907A 1959-03-20 1959-03-20 Constant level head device, more especially for hydroculture devices. BE576907A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE576907A BE576907A (en) 1959-03-20 1959-03-20 Constant level head device, more especially for hydroculture devices.
ES0250080A ES250080A1 (en) 1959-03-20 1959-06-11 Improvements in constant level head devices, more especially intended for hydrocultative appliances (Machine-translation by Google Translate, not legally binding)
FR17431A FR1227050A (en) 1959-03-20 1959-06-12 Constant level head device, more especially for hydroculture devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE576907A BE576907A (en) 1959-03-20 1959-03-20 Constant level head device, more especially for hydroculture devices.

Publications (1)

Publication Number Publication Date
BE576907A true BE576907A (en) 1959-07-16

Family

ID=38527526

Family Applications (1)

Application Number Title Priority Date Filing Date
BE576907A BE576907A (en) 1959-03-20 1959-03-20 Constant level head device, more especially for hydroculture devices.

Country Status (3)

Country Link
BE (1) BE576907A (en)
ES (1) ES250080A1 (en)
FR (1) FR1227050A (en)

Also Published As

Publication number Publication date
ES250080A1 (en) 1959-10-01
FR1227050A (en) 1960-08-18

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