Green-house curtain
AssigneeLudvig Svensson (Holland) B.V.
InventorGoran Henningsson
Life of this patent
Estimating the term…
Abstract
A rollable and drapeable green-house curtain with insulating power. The curtain comprises double fabric layers separated along their entire length and width and interconnected by means of a plurality of thin and flexible threads sparsely distributed over the surface of the curtain. In the intervals between rows of connecting threads there could be arranged strips of a heat reflecting material, e.g. metallized foil, in order to make the curtain an effective barrier against radiant heat. The curtain is manufactured on a warp knitting machine with two needle bars and the connecting threads consist of connecting stitches between the double fabric paths.
Claims17
A rollable and drapeable green-house curtain comprising:
- at least two fabric layers arranged in superposed spaced apart relation to the next adjacent layer and forming an air space therebetween;
- a plurality of connecting members each comprised of at least one thin, flexible plastic thread each end of which being provided with cross locking members, said thread extending between and connected at the opposed ends thereof to each superposed adjacent fabric layer, said connecting members being distributed over substantially the entire inner surfaces of the fabric layers and spaced apart by a distance greater than the lengths of said connecting members.
A double or multiple rollable and drapeable green-house curtain, the fabric layers of which are separated along their entire length and width but are interconnected by means of connecting members forming an air space therebetween, each connecting member consisting of at least one thin and flexible thread extending between the fabric layers, said threads being sparsely distributed over substantially the whole surface of the curtain, so that opposing surfaces of the fabric layers can be brought together in close contact with each other, and between the fabric layers there is arranged at least one heat reflecting layer.
A rollable and drapeable greenhouse curtain comprising:
- at least two fabric layers arranged in superposed spaced apart relation to the next adjacent layer and forming an air space therebetween;
- a plurality of connecting members each comprised of at least one thin, flexible thread extending between and connected at the opposed ends thereof to each superposed adjacent fabric layer, said connecting members being arranged in a plurality of parallel rows in the longitudinal direction of the fabric layers and having at least one strip of a heat reflecting material disposed in each interval between said rows.
Dependencies are inferred from the claim text.