US 2014/0004278 A1 · SINGLE WALL AIRBEAM

Abstract

A single wall airbeam constructed of a single layer material including a core of polyester fabric having a coating of adhesive on each surface of the polyester layer. A thin polyester film is applied to one of the adhesive layers. First and second polyurethane layers are applied to the other adhesive layer. The first polyurethane layer is a thicker, higher melt point polyurethane layer that may or may not be coated in a fire retardant material. The second polyurethane layer is a thinner, polyurethane layer having a lower melting point. An airbeam is constructed using one or more pieces of the fabric and heat sealing or welding the one or more polyurethane layers of fabric at seams, when the one or more layers are placed in a confronting position.

Claims6

Dependent claims

An air impermeable fabric for use in an airbeam, said fabric configured with an interior layer and an exterior layer, said fabric comprising:

a polyester fabric having a first surface and a second surface;
a first adhesive layer in contact with said first surface of said polyester fabric;
a polyester film in contact with said first adhesive layer and configured for forming said exterior layer;
a second adhesive layer in contact with said second surface of said polyester film;
a first, generally high melt point polyurethane layer in contact with said second adhesive layer;
and
a second, generally low melt point polyurethane layer in contact with said first polyurethane layer.

4 more elements

Dependencies are inferred from the claim text.

Single wall airbeam

Life of this patent

Single wall airbeam

Life of this patent

Abstract

Claims6