Roller screen for retractable doors

Abstract

A roller screen is retrofitted to the lower edge of a retractable door, which screen is the same width as the door and the free end of which is removeably attached to the floor adjacent the lower edge of the door. The roller screen has a driving spring which is wound up as the retractable door opens and the screen is drawn out and which acts to roll up the screen as the door is closed. The free end of the screen is attached to the floor adjacent the lower edge of the door by connectors which can be uncoupled to allow access. The screen can also be built into the lower edge of a retractable door and its vertical edges can be retained in the same track which guides the opening door.

Dependencies are inferred from the claim text.