Patent ID: 9637974
Date: 2017-05-02
CPC Classifications: A62C,E04H,E06B

Claim:
1. A roller door system, for opening and closing a doorway defined in the wall of a structure, comprising a rollable door (a) having a bottom portion and (b) secured, in use, along a top side of the doorway; a roller attached to the bottom portion of the rollable door for rolling and unrolling the rollable door about the roller; a door opening means and a door closing means for controlling the deployment of the rollable door by translating the roller across the doorway; and reusable sealing means for sealing between the lateral margins of the rollable door and the doorway; and wherein the door closing means comprises a pressurised fluid power system comprising a plurality of collapsible hoses associated with the rollable door and configured to cause the rollable door to unroll from the roller when expanded by fluid.