A screen installation comprising a screen cloth assembly (22) with a screen cloth (7) and at least one flat strip (21) fastened to the screen cloth, as well as screen sections (8, 18), to opposite edges of the screen cloth, at least one screen section of which has an undercut chamber (20) and a longitudinal opening (23) that opens into this chamber, wherein the strip is accommodated in the chamber of the at least one screen section so that the screen cloth fastened to it can extend outwards from it through the longitudinal opening of the screen section. The strip (21) is fastened at a distance from the adjacent free edge of the screen cloth (7) in the form of a free screen cloth flap (19). The screen cloth flap extends from the strip and via the longitudinal opening (23) of the at least one screen section (8, 18) outwards from it.

A retractable roof structure has a pair of longitudinally spaced supports, guide wires extending between said supports and positioned to support a covering in a required profile. The covering comprises a plurality of sections arranged in seriatim along the guide wires with each section slidably supported on the guide wires so as to be moveable between an open position in which the area beneath the covering is exposed and a closed position in which the area beneath the covering is covered. A drive member extends between the supports and is connected to one end of each of the sections at a first location to move the one end along the guide wires. A tensile member, such as a rope or cable, extends from the peak of the leading edge of one section to the lower corner of the leading edge of a section along a path so that movement of the peak is transmitted by the tensile member to the eaves to move the section along the eave guide wire in the same direction.

A greenhouse with integrated irrigation and environmental control system includes a main structure, an irrigation system, an environmental control system, a control module, and a protective sheet of netting. The main structure is enclosed by the protective sheet of netting. Further, the irrigation system and the environmental control system are mounted within the main structure. The environmental control system regulates the humidity in the main structure, as well as provides surveillance of the main structure. As such, the environmental control system includes a camera, a motion sensor, a humidity sensor, and a plurality of fans. The irrigation system provides plants and vegetation with the necessary hydration and nutrients. As such, the irrigation system includes a tubular sprinkler, an irrigation line, a plurality of storage tanks, and a pump.

This invention is directed toward a rotating arm that can quickly and easily cover and uncover a greenhouse. The invention comprises a base unit to which is attached a rotating arm. The base unit is secured into cement and the rotating arm unit is attached at its end to a tarp. As a worker rotates the arm, the greenhouse tarp is quickly moved in the direction or rotation. A greenhouse with one of these inventions at either end can be covered and uncovered by a single person in a matter of seconds and removes the need for the motors and complicated apparatus associated with the prior art.

The invention provides a farm from a box system and at least one container that includes all components and tools required to assist communities in being able to conduct agricultural activities in order to provide sufficient food for or for other off-grid localized food production, e.g., for schools, correctional facilities, etc. The at least one container is provided in a compact form for shipping to locations where needed and provides the necessary tools, agricultural supplies, power and irrigation to facilitate growth of sustainable crops. The invention also provides a method of use of the systems and containers described herein for assisting people in farming activities conducted outside of the containers, thus enabling the system owner to successfully and efficiently conduct organic and small scale farming.

A set of methods and apparatus for efficiently pressurizing and ventilating an air-supported greenhouse or other structure requiring pressurization and ventilation. A method for efficiently pressurizing and ventilating an air-supported structure comprises directing any external wind flow and external wind pressure into mechanical flow means, such as a fan, or fans in parallel, operating in the intake direction, and into the internal space of the air-supported structure and out of the internal space of the air-supported structure through internal pressure regulating exhaust means, whereby the internal space of the structure will be ventilated and pressurized with the assistance of any external wind and the reliability of mechanical flow means (fans). This method allows for the efficient, effective, and economical cooling, through ventilation, of a protected space created by a light permeable membrane (cover), which is supported only by internal air pressure against the weight of the membrane and dynamic pressures of the external wind, itself. Apparatus for directing any external wind flow and external wind pressure into mechanical flow means are disclosed. Methods and apparatus for internal pressure regulation are also disclosed. Some benefits are less power consumption, minimal internal static pressure (just enough to overcome the external wind), less potential film breakage (than conventional frame-supported poly greenhouses), more light transmission, less cost, and more portability.

The present invention can provide an optimum sensory temperature and can increase productivity by a system having a variable fan provided in a vinyl greenhouse, receiving optimum temperature (A) and humidity (B), detecting internal temperature (A) and humidity (B), calculating temperature (A) according to the humidity, and providing the temperature (A) suitable for the humidity (B) detected through an operational control of the variable fan.

A greenhouse building has perimeter wall frames constituted by linear materials such as single pipes, and roof frames constituted by tension wires that are extended in a stretched state in the longitudinal and crosswise directions. The tension force of the tension wires is received by the installation surface through anchoring tension wires. Only compression force acts on support posts of the wall frames and substantially no bending force acts thereon. A large building can be easily constructed using linear materials such as single pipes with a small diameter. A large greenhouse with high light receiving efficiency can be easily constructed without using heavy building materials such as steel frame materials.

A set of methods and apparatus for efficiently pressurizing and ventilating an air-supported greenhouse or other structure requiring pressurization and ventilation. A method for efficiently pressurizing and ventilating an air-supported structure comprises directing any external wind flow and external wind pressure into mechanical flow means, such as a fan, or fans in parallel, operating in the intake direction, and into the internal space of the air-supported structure and out of the internal space of the air-supported structure through internal pressure regulating exhaust means, whereby the internal space of the structure will be ventilated and pressurized with the assistance of any external wind and the reliability of mechanical flow means (fans). This method allows for the efficient, effective, and economical cooling, through ventilation, of a protected space created by a light permeable membrane (cover), which is supported only by internal air pressure against the weight of the membrane and dynamic pressures of the external wind, itself. Apparatus for directing any external wind flow and external wind pressure into mechanical flow means are disclosed. Methods and apparatus for internal pressure regulation are also disclosed. Some benefits are less power consumption, minimal internal static pressure (just enough to overcome the external wind), less potential film breakage (than conventional frame-supported poly greenhouses), more light transmission, less cost, and more portability.

A screen installation comprising a screen cloth assembly (22) with a screen cloth (7) and at least one flat strip (21) fastened to the screen cloth, as well as screen sections (8, 18), to opposite edges of the screen cloth, at least one screen section of which has an undercut chamber (20) and a longitudinal opening (23) that opens into this chamber, wherein the strip is accommodated in the chamber of the at least one screen section so that the screen cloth fastened to it can extend outwards from it through the longitudinal opening of the screen section. The strip (21) is fastened at a distance from the adjacent free edge of the screen cloth (7) in the form of a free screen cloth flap (19). The screen cloth flap extends from the strip and via the longitudinal opening (23) of the at least one screen section (8, 18) outwards from it.