Patent ID: 9290990
Filing Date: 2016-03-22
CPC Classification: A47G,E06B

Claim Text:
1. A window or door opening screen assembly, the assembly comprising: a flexible screen material having opposed substantially parallel side edges and an upper and lower edge; a first at least substantially rigid edge member to which one opposed side edge of the screen material is attached; a second at least substantially rigid edge member to which the other side edge of the screen material is attached, the screen material able to be wound onto and off the second edge member, wherein the substantially first and second rigid edge members are positioned substantially parallel to one another during use; a tensioner to tension the screen material; and wherein one of the upper and lower edges of the screen material is provided with a convex shape and the other of the upper and lower edges is provided with a concave shape such that the upper and lower edges of the screen material are adapted to match the Catenary effect that exists in the screen material when the screen is positioned in a substantially vertical plane and in tension under the effect of gravity.