Top furling automated retractable greenhouse cover is a retractable cover for a greenhouse that is mounted on top of the greenhouse. Top furling automated retractable greenhouse cover comprises: a spine clamp, a left furling cover assembly, a right furling cover assembly, a hinge pin assembly, and an electrical control box. Left and right furling assemblies each comprise a curtain or cover, a furling rod, a furling motor, and a support arm. Electrical control box sends electronic signals to cause left and right covers or curtains to furl above the greenhouse when retracted and to unfurl down to the ground when extended to cover the greenhouse. The top-mounted design allows efficient use of gravity to apply tension to the furled rolls.

A variable thermal insulation assembly includes a plurality of sheets of film, wherein each sheet is bonded to an adjacent sheet along a plurality of longitudinally extending regions to form a plurality of longitudinally extending cavities, wherein the plurality of flexible sheets of each of the thermal cell arrays are formed of an electrically insulative material that is coated on one side with an electrically conductive material, a controller electrically coupled to the plurality of flexible sheets and configured to apply an electric potential difference between electrically conductive material of each pair of flexible sheets such that the electrically conductive coatings of the pair of flexible sheets attract each other to cause the thermal cell array to transition from an expanded state to a compressed state.

A system for regulating the supply of conditioned gases to an environmentally controlled enclosure. A greenhouse or warehouse in which plants are grown are supplied with gases having a controlled absolute humidity, temperature, and carbon dioxide content. The properties of exhaust gas from the environmentally controlled enclosure are measured, and the mass of bone dry gas provided, the absolute humidity, temperature, and carbon dioxide content in the enclosure are maintained, and the transpiration rate of plants in the enclosure is measured by comparing properties of conditioned gas at the inlet with exhaust gas exhausted from the enclosure, in order to enhance transpiration of the plants in the enclosure, to allow the grower to maximize growth or other selected properties of the plants under cultivation.

A system for regulating the supply of conditioned gases to an environmentally controlled enclosure. A greenhouse or warehouse in which plants are grown are supplied with gases having a controlled absolute humidity, temperature, and carbon dioxide content. The properties of exhaust gas from the environmentally controlled enclosure are measured, and the mass of bone dry gas provided, the absolute humidity, temperature, and carbon dioxide content in the enclosure are maintained, and the transpiration rate of plants in the enclosure is measured by comparing properties of conditioned gas at the inlet with exhaust gas exhausted from the enclosure, in order to enhance transpiration of the plants in the enclosure, to allow the grower to maximize growth or other selected properties of the plants under cultivation.

System for covering flat surfaces that is installed on support structures formed by support poles (2) maintained in position in by a network of tie-rods (3), both the support poles and the tie-rods being fixed on the surface by means of suitable pins. Said system comprises a plurality of pairs of elongated support elements (6, 6) having a lower portion positioned on such poles (2) and being joined together in raised position in proximity to their upper end, to form a plurality of pairs of slopes on which protection nets or protection sheets (7) are positioned, which in open position cover the area below the support structure and which in closed position are compact and amassed between adjacent poles (2) of the same row; the movement from the open position to the closed one and vice versa being obtained through the sliding of the sheet along the support elements by means of movement means.

Top furling automated retractable greenhouse cover is a retractable cover for a greenhouse that is mounted on top of the greenhouse. Top furling automated retractable greenhouse cover comprises: a spine clamp, a left furling cover assembly, a right furling cover assembly, a hinge pin assembly, and an electrical control box. Left and right furling assemblies each comprise a curtain or cover, a furling rod, a furling motor, and a support arm. Electrical control box sends electronic signals to cause left and right covers or curtains to furl above the greenhouse when retracted and to unfurl down to the ground when extended to cover the greenhouse. The top-mounted design allows efficient use of gravity to apply tension to the furled rolls.

Top furling automated retractable greenhouse cover is a retractable cover for a greenhouse that is mounted on top of the greenhouse. Top furling automated retractable greenhouse cover comprises: a spine clamp, a left furling cover assembly, a right furling cover assembly, a hinge pin assembly, and an electrical control box. Left and right furling assemblies each comprise a curtain or cover, a furling rod, a furling motor, and a support arm. Electrical control box sends electronic signals to cause left and right covers or curtains to furl above the greenhouse when retracted and to unfurl down to the ground when extended to cover the greenhouse. The top-mounted design allows efficient use of gravity to apply tension to the furled rolls.

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.

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 present invention comprises a multilevel structure made up of several components that fit together to form a rectangular frame that can be combined with other such multilevel frame structures to form a desired size of greenhouse that can either be free standing, attached to the wall/fence or pegged to the ground. Additionally, the greenhouse offers a light intensity controller in the form of an externally provided or directly attached refractor/reflecting/magnifying lens/that can increase, reduce or change the amount of light. Furthermore, the greenhouse has the ability to run water tubing and electrical wires through its frame structure that allows humidity control, lighting and heating of the environment within, for hydroponic, aeroponic and conventional earth farming.