US20060264165A1 - Partition and method for controlling the temperature in an area - Google Patents

Partition and method for controlling the temperature in an area Download PDF

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Publication number
US20060264165A1
US20060264165A1 US10/564,330 US56433004A US2006264165A1 US 20060264165 A1 US20060264165 A1 US 20060264165A1 US 56433004 A US56433004 A US 56433004A US 2006264165 A1 US2006264165 A1 US 2006264165A1
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Prior art keywords
separation wall
liquid
partition
separation
internal
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Abandoned
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US10/564,330
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English (en)
Inventor
Jacobus Johannes Van Dijk
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Klimrek I E BV
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Klimrek I E BV
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Assigned to KLIMREK I.E. B.V. reassignment KLIMREK I.E. B.V. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: VAN DIJK, JACOBUS JOHANNES WILHELMUS
Publication of US20060264165A1 publication Critical patent/US20060264165A1/en
Abandoned legal-status Critical Current

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    • 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
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/14—Greenhouses
    • A01G9/1469—Greenhouses with double or multiple walls
    • 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
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00—Solar heat collectors using working fluids
    • F24S10/60—Solar heat collectors using working fluids the working fluids trickling freely over absorbing elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/60—Solar heat collectors integrated in fixed constructions, e.g. in buildings
    • F24S20/67—Solar heat collectors integrated in fixed constructions, e.g. in buildings in the form of roof constructions
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/44—Heat exchange systems

Definitions

  • the present invention relates to a partition for separating two areas, comprising two translucent separation walls located a distance (a) of more than 5 mm apart, wherein means are provided for moving a liquid between said separation walls, said means comprising liquid dispensing means arranged to provide a liquid film, wherein one of said separation walls is an external separation wall and the other of said separation walls is an internal separation wall, wherein said liquid film moves over said internal separation wall.
  • a “solar boiler” is described in European application 022 389. That is to say, two walls a small distance apart are fitted in a roof element and the space between them is completely filled with liquid, such as water. Heat can then be extracted by solar radiation. A space remains on either side between the walls and the actual roof element.
  • the aim of the present invention is to provide a partition and method, respectively, by means of which active cooling, or alternatively heating, is possible and as a result of which further ventilation or heating can be dispensed with.
  • the aim of the present invention is, furthermore, to implement cooling/heating in such a way that there is no or negligible loss of light from any luminous radiation passing through the partition.
  • the invention can be used both with vertically positioned partitions and with partitions at an angle.
  • the angle with respect to the horizontal is preferably at least 20°.
  • An example of such a partition can be found in the roof construction for a greenhouse.
  • the present invention relates to a separation wall between two areas and not to a solar collector that can be installed independently.
  • the thermally insulating space preferably comprises a space for accommodating an insulating gas, such as air.
  • a liquid film is fed over the internal separation wall.
  • a liquid film has such small dimensions that a free space or cavity that provides insulating properties remains between the top face of the liquid film and the external separation wall. That is to say, the effect of the heating of water disclosed in European application 022 389, which has been described above, does not arise in the case of the present invention because the water is not in contact with the external separation wall and is even insulated with respect to that separation wall.
  • the light will be transmitted without substantial loss, that is to say with an efficiency of more than 95% and more particularly with an efficiency of more than 99%, as a result of which negligible heating of the water caused by solar radiation takes place.
  • such separation walls are generally made thin-walled with a wall thickness of less than 3 mm and in particular less than 1 mm and more particularly approximately 0.2 mm. This wall thickness is dependent on the material used and for polycarbonate, for example, is approximately 0.8 mm and for PMMA is approximately 2 mm and for film is approximately 0.07 mm.
  • the wall assumes the temperature of the cool or warm water, active cooling of the area is produced. If humidity is relatively high, condensation, that is to say relinquishing of heat, will occur at the wall. Such formation of condensation on the inside of the wall can lead to water droplets that drip from the separation wall in an undesirable manner. This can be avoided by providing the inside of a wall with additives or coating that lower the surface tension. It is also possible to promote droplet formation/condensation with the aid of targeted circulation along the inside of the partition. Other means to promote condensation that is as distributed as much as possible can be used, such as vibration means. Because of the presence of the “cavity” above the water layer and below the external separation wall, a cavity that has an insulating effect is produced.
  • agents that lower the surface tension such as types of soap, can be used. These can be present both in the liquid concerned and on the internal separation wall over which the water flows. It will be understood that said internal separation wall does not always have to be fitted at an inclination. This can also be vertical.
  • the liquid can also have a high viscosity, that is to say this is relatively viscous. Starting with water, this can, for example, be achieved by adding thickeners thereto.
  • a liquid sealing layer Between the top of the water surface and the bottom of the top or external separation wall there can be either air or a liquid sealing layer.
  • This can be a permanent further intermediate panel completely filled with the liquid.
  • a flexible film in which case the water “creeps” between the film and the top of the internal separation wall.
  • the thickness of the liquid film is preferably less than 5 mm, such as 3 mm, or less than 1 mm.
  • Such a liquid sealing layer is preferably used in combination with a partition positioned at an inclination.
  • this can also comprise a non-woven made of any material that floats on the liquid.
  • the mechanism of the present invention is preferably such that the flow rate of the liquid and the temperature control the quantity of heat absorbed or released.
  • a basic quantity of liquid is always present as separator.
  • the liquid used has a preferably relatively low temperature.
  • a temperature of between 5° C. and 12° C. is mentioned as an example.
  • the heated/cooled water can, for example, be returned to a heat sink, which, for example, can be an underground water store. In the winter this water that has been heated to some extent can be used again to heat the building construction, either directly or via a heat pump. In the shorter term, such as during the night, it is possible to provide for further cooling of the water previously used.
  • Other constructions with storage vessels, heat pumps and heat exchangers can be envisaged by those skilled in the art and fall within the scope of the appended claims.
  • the liquid released can be discharged in any manner known in the state of the art.
  • a series of nozzles is provided along the top boundary of the panel concerned, each of which dispenses a distributed stream of water. It is also possible to provide for continuous dispensing using special dispensing hoses or tubes designed for this purpose.
  • the supply and discharge, respectively can be integrated in a panel that forms the partition.
  • the panel can be provided with a frame at the bottom and top for discharge/supply.
  • the external panel is permanently fitted in a building construction and the internal panel over which the liquid flows is fitted such that it can be displaced.
  • consideration can be given to a screen or film layer over which the liquid moves and which can be removed as required, for example by rolling up.
  • some of the liquid is also included when rolling up, to facilitate realisation of the water film at a later stage by the liquid that is then present between the windings.
  • the material of such an internal separation wall is preferably a polyamide and more particularly polyamide 6.6. It must be understood that this can also be used for the other walls comprising the liquid sealing layer. Other plastic materials known in the state of the art, but also glass, can be used for the separation walls.
  • the invention also relates to a method for controlling the temperature in an area, which area is provided with an inclined, translucent partition consisting of transparent separation walls at least 5 mm apart, wherein one separation wall constitutes the boundary with said area and the other separation wall constitutes the boundary with said surroundings, wherein a liquid film is applied on the top of the separation wall that constitutes the boundary with the area, such that the top of the liquid film is some distance away from the bottom of the other separation wall, wherein an insulating gas, such as air, is arranged in said space, wherein the heat transport to/from said area is determined by controlling the amount of liquid supplied/discharged.
  • a liquid film is, in principle, continuously present and the temperature within said area can be influenced by changing the flow rate, in combination with the temperature.
  • the insulation with the other separation wall preferably consists of a space filled with gas, such as an air-filled space.
  • the liquid used is crystal-clear, that is to say has no influence on the light transmitted.
  • Additives that influence the wavelength of the light are mentioned as an example.
  • certain parts of the light spectrum are important and other parts are less important for growth.
  • a continuously variable control of the light transmission and/or reflection can be provided in that a continuous stream of water moves over the internal separation wall of the panel.
  • additives In greenhouses, for example, screens are used at night to restrict the emergence of light. These could be replaced by (temporarily) introducing additives into the liquid. At a later stage these additives can be chemically or physically removed in a simple manner. In addition, it is, moreover, possible by means of these additives to recover the heat that is produced by lighting (assimilation lighting) by absorption. Another possibility at relatively high temperature is to cool down this heat using the liquid according to the invention.
  • additives into the liquid by means of which chemical/physical processes are possible under the influence of radiation, such as forms of photosynthesis.
  • Another example is the introduction of additives that react to an electric current that is applied to the liquid film.
  • a film layer or the like that encapsulates the liquid it is possible to provide this film layer with properties that give rise to, influence or intensify the effect of the additives that has been described above.
  • a film can, for example, be fitted such that it can be displaced. That is to say, a film may or may not be present in the space delimited between the separation walls.
  • the heat transfer to the interior of the building construction can be managed by controlling the flow rate, the temperature and the layer thickness of the water.
  • the layer thickness of the liquid stream can also be influenced by means of additives.
  • Agents that restrict or stimulate thermal radiation can also be added to the liquid. This can, of course, also be achieved in the form of a coating on one of the separation walls.
  • the entire space between the two separation walls can be temporarily filled with liquid.
  • a construction similar to a solar boiler is produced by means of which heat can be extracted.
  • the effect of cooling is produced at night.
  • the walls, and in particular the internal separation wall can be provided with means to improve the heat transfer. Examples of these are ribs, black-coloured parts and the like.
  • FIG. 1 shows, highly diagrammatically, a building construction
  • FIG. 2 shows, in detail, part of the roof of the construction
  • FIG. 3 shows a further variant of a partition wall in cross-section
  • FIG. 4 shows another embodiment of the construction according to the invention.
  • FIG. 1 a building construction such as a greenhouse is indicated by 1 .
  • the roof or cover is indicated by 2 .
  • this consists of partitions 3 .
  • Each partition consists of an external separation wall 4 and an internal separation wall 5 .
  • the external separation wall 4 is the wall that is in contact with the surroundings and the internal separation wall 5 is the wall that is in communication with the area.
  • the distance between the walls 4 and 5 is indicated by a and is greater than 5 mm and preferably greater than 1 cm.
  • the walls can be made of glass or a plastic material of small wall thickness. For glass the wall thickness is preferably less than 5 mm and for plastic is less than 2 mm and more particularly less than 1 mm, such as 0.1 mm. Polycarbonate, polymethyl methacrylate, polyamide, such as polyamide 6.6, and the like are mentioned as examples for the plastic.
  • a water supply line 7 with dispensing nozzles 6 At the top of the cover there is a water supply line 7 with dispensing nozzles 6 .
  • This water layer 10 has a relatively small thickness, that is to say a thickness of less than 2 mm and preferably approximately 1 mm.
  • the thickness of the water layer that is indicated by b is substantially less than the abovementioned distance a, so that a free space remains between the top of the water layer 10 and the external separation wall 4 , which space is filled with gas, such as air. This space acts as insulation.
  • Water preferably flows over the sloping parts of the internal separation wall 5 .
  • a wide, relatively thin water layer can be ensured by using agents that lower the surface tension.
  • the effects described above in the preamble to the description can be obtained with the aid of this water layer. That is to say, in contrast to constructions according to the state of the art, no heating of the water takes place because this is in principle crystal-clear. Of course, other crystal-clear liquids can be used instead of water.
  • the light transmission characteristics can be influenced and heat can optionally be absorbed or released or the incidence/radiation of light can be influenced.
  • FIG. 3 A further embodiment of the invention is shown in FIG. 3 .
  • the panel is indicated in its entirety by 13 and forms part of a building construction.
  • a liquid film that has a thickness b is indicated by 20 . This liquid is dispensed from nozzles 17 and flows downwards under gravity.
  • a layer of film 21 “floats” on the liquid.
  • a distance c that is filled with gas, such as air, remains between the top of the film layer 21 and the bottom of the upper panel 14 .
  • the resulting space is indicated by 18 and provides insulation.
  • This film can be an oriented polyamide with, for example a thickness of 25 ⁇ m.
  • the thickness of the film of water can be greater if a film layer or other encapsulating layer is used. A value of 2-3 mm is mentioned as an example.
  • the top of the lower separation wall is preferably essentially flat, that is to say there are no ribs or channel structure.
  • the film used here on its own or in combination with the liquid, can have changing optical properties, for example under the influence of an electrical voltage applied thereto. Moreover, it is possible to prevent a growth of matter by means of such a voltage.
  • FIG. 4 part of the construction according to the present invention that is located close to a gutter is shown as an alternative. It will be understood that the same construction can be incorporated in any other location in a building construction, such as at a girder where there is a frame for collecting liquid, which optionally is integrated in a housing, which contains the roll-up section as to be described for FIG. 4 .
  • This gutter is indicated by 25 .
  • the external separation walls are indicated by 26 and 27 , respectively.
  • a scissor-like construction that is located in the plane of the external separation wall 26 , as a result of which the liquid stream remains unimpeded.
  • the internal separation wall is indicated by 30 and 31 , respectively.
  • the liquid flows over this.
  • rolling up takes place in a situation in which the internal separation wall is damp, so that subsequent unrolling is facilitated. After the internal separation wall has been rolled up, this will not constitute any impediment to the light passing through.
  • the gutter 25 is a special construction. This contains an upper channel 32 for removing rainwater. For this purpose there is an opening 33 in cover 34 . Furthermore, there are channels 35 that, via the openings 36 , collect and remove the liquid originating from the liquid film that is moving over the internal separation wall. This takes place separately on the left and the right. There is a further channel 37 for the condensation collecting on the inside of the internal separation wall 30 , 31 .
  • a fixing for the internal separation wall 31 that can be rolled up is indicated by 38 . That is to say the roller 32 moves towards the fixing 38 when rolling up and away from the fixing 33 when unrolling.
  • the water moves over the internal separation wall of the partition.
  • the external separation wall can be provided with a coating that counteracts condensation in order thus to influence the translucency as little as possible.
  • plastic panels As a result of the use of plastic panels, a relatively small wall thickness can suffice, as indicated above. Because plastic can be made more translucent than glass and as a result of the smaller wall thickness thereof, a particularly high light transmission can be obtained in combination with a crystal-clear liquid. Moreover, the weight of the construction can be limited appreciably compared with constructions that are made up of double glazing. However, the use of glass is still a practical option.
  • the water or other liquid is preferably fed from the nozzles 6 at a relatively low temperature if it is desired to cool the interior of the building construction.
  • a temperature of 5-12° C. is mentioned as an example if the aim is for a rise in temperature of the liquid film 10 of more than 20 and preferably approximately 30-40° C.
  • the temperature of the water must not be so low that freezing can occur.
  • a conventional solar boiler or cooling construction By temporarily filling the space between the walls 4 and 5 , a conventional solar boiler or cooling construction can be provided.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental Sciences (AREA)
  • Building Environments (AREA)
US10/564,330 2003-07-11 2004-07-12 Partition and method for controlling the temperature in an area Abandoned US20060264165A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL1023900 2003-07-11
NL1023900A NL1023900C2 (nl) 2003-07-11 2003-07-11 Afscheiding alsmede werkwijze voor het regelen van de temperatuur in een ruimte.
PCT/NL2004/000504 WO2005005894A1 (en) 2003-07-11 2004-07-12 A partition and method for controlling the temperature in an area

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US20060264165A1 true US20060264165A1 (en) 2006-11-23

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US10/564,330 Abandoned US20060264165A1 (en) 2003-07-11 2004-07-12 Partition and method for controlling the temperature in an area

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US (1) US20060264165A1 (zh)
EP (1) EP1644668A1 (zh)
CN (1) CN1823248B (zh)
CA (1) CA2531758A1 (zh)
EA (1) EA007557B1 (zh)
IL (1) IL173070A0 (zh)
MX (1) MXPA06000435A (zh)
NL (1) NL1023900C2 (zh)
WO (1) WO2005005894A1 (zh)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090188161A1 (en) * 2004-01-09 2009-07-30 Klimrek I.E. B.V. Roof construction for a greenhouse
US20160219796A1 (en) * 2013-06-27 2016-08-04 TropoTherm, S.L. Greenhouse roofing having temperature-dependent radiation transparency and method for cultivating useful plants
US10426103B2 (en) * 2015-02-24 2019-10-01 Gaïa Écosystèmes Inc. Multilevel closed ecosystem greenhouse
US20210219501A1 (en) * 2018-07-13 2021-07-22 Apex greenhouses (Australia) Pty Ltd. Greenhouse improvements
US20220117167A1 (en) * 2020-10-15 2022-04-21 Carlos BISHOP Atrium hybrid greenhouse

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1031885C2 (nl) * 2006-05-24 2007-11-27 Maurice Kassenbouw B V Werkwijze voor het bedrijven van een warenhuis en warenhuis geschikt voor het toepassen van de werkwijze.
PT2306102E (pt) * 2009-09-29 2013-05-03 Hemera En Renovables Espana S L U Equipamento e método de arrefecimento e aquecimento de fluido
EP2338327A1 (en) * 2009-12-22 2011-06-29 Korea Institute of Geoscience & Mineral Resources Water curtain cultivation system capable of geological circulation of groundwater and artificial recharge of rainwater

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US3257903A (en) * 1960-11-21 1966-06-28 Alvin M Marks Electrically responsive light controlling devices employing suspended dipole particles and shear forces
US4000850A (en) * 1975-05-14 1977-01-04 Diggs Richard E Solar heated and cooled modular building
US4067347A (en) * 1976-07-30 1978-01-10 Lipinski Vincent B Solar heated shelter with moveable secondary roof
US4173212A (en) * 1977-10-17 1979-11-06 The Board of Regents for the Oklahoma Agricultural and Mechanical Colleges Self-contained solar greenhouse
US4278075A (en) * 1977-11-18 1981-07-14 Heliotherm Ag Process and device for the recuperation of heat from selected ranges of the solar spectrum
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US4944125A (en) * 1988-05-09 1990-07-31 Tabai Espec Corporation Filtering device
US6389772B2 (en) * 2000-04-19 2002-05-21 William B. Gleckman Universal building unit for building structures

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FR2459609A2 (fr) 1979-06-22 1981-01-16 Commissariat Energie Atomique Procede et installation de climatisation pour serres et abris
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CN2520482Y (zh) * 2002-01-25 2002-11-13 韩国勇 瓦式太阳能热水装置
CN2536967Y (zh) * 2002-02-26 2003-02-19 付连祥 一种与建筑溶为一体的太阳热水器

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3257903A (en) * 1960-11-21 1966-06-28 Alvin M Marks Electrically responsive light controlling devices employing suspended dipole particles and shear forces
US3146774A (en) * 1961-08-08 1964-09-01 John I Yellott Film-type solar water heater
US4000850A (en) * 1975-05-14 1977-01-04 Diggs Richard E Solar heated and cooled modular building
US4067347A (en) * 1976-07-30 1978-01-10 Lipinski Vincent B Solar heated shelter with moveable secondary roof
US4173212A (en) * 1977-10-17 1979-11-06 The Board of Regents for the Oklahoma Agricultural and Mechanical Colleges Self-contained solar greenhouse
US4278075A (en) * 1977-11-18 1981-07-14 Heliotherm Ag Process and device for the recuperation of heat from selected ranges of the solar spectrum
US4286576A (en) * 1979-07-26 1981-09-01 The United States Of America As Represented By The United States Department Of Energy Solar energy thermalization and storage device
US4515150A (en) * 1980-02-15 1985-05-07 Mcglew John J Building structure and building panel and method of controlling appearance and lighting of a building
US4452230A (en) * 1980-05-23 1984-06-05 Nelson Richard C Canopy system for a building structure
US4874026A (en) * 1988-04-04 1989-10-17 Dayer Worrall Vehicle window screen assembly
US4944125A (en) * 1988-05-09 1990-07-31 Tabai Espec Corporation Filtering device
US6389772B2 (en) * 2000-04-19 2002-05-21 William B. Gleckman Universal building unit for building structures

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090188161A1 (en) * 2004-01-09 2009-07-30 Klimrek I.E. B.V. Roof construction for a greenhouse
US20160219796A1 (en) * 2013-06-27 2016-08-04 TropoTherm, S.L. Greenhouse roofing having temperature-dependent radiation transparency and method for cultivating useful plants
US10426103B2 (en) * 2015-02-24 2019-10-01 Gaïa Écosystèmes Inc. Multilevel closed ecosystem greenhouse
US20210219501A1 (en) * 2018-07-13 2021-07-22 Apex greenhouses (Australia) Pty Ltd. Greenhouse improvements
US20220117167A1 (en) * 2020-10-15 2022-04-21 Carlos BISHOP Atrium hybrid greenhouse

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EA007557B1 (ru) 2006-10-27
CN1823248A (zh) 2006-08-23
EP1644668A1 (en) 2006-04-12
MXPA06000435A (es) 2006-08-23
IL173070A0 (en) 2006-06-11
CN1823248B (zh) 2010-06-16
EA200600236A1 (ru) 2006-08-25
WO2005005894A1 (en) 2005-01-20
CA2531758A1 (en) 2005-01-20
NL1023900C2 (nl) 2005-01-17

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