公开(公告)号：US09637974B2

公开(公告)日：2017-05-02

申请号：US15032063

申请日：2014-10-23

Applicant: THE SECRETARY OF STATE FOR DEFENCE

Inventor： Duncan Godfrey Mervyn Thompson

IPC: E06B9/64 ,  E06B9/66 ,  E06B9/68 ,  A62C2/10 ,  E04H15/58 ,  E06B9/56 ,  E06B9/58 ,  E06B9/60 ,  A62C2/24

CPC classification number: E06B9/66 ,  A62C2/10 ,  A62C2/248 ,  E04H15/58 ,  E06B9/56 ,  E06B9/581 ,  E06B9/60 ,  E06B9/64 ,  E06B9/68

Abstract: A roller door system (100) particularly for opening and closing a doorway (120) defined in the wall of a lightweight structure (110) such as a marquee, hangar, field hospital, emergency shelter and the like. The door system comprises a rollable door (150) secured, in use, along one edge of the doorway (152); a roller (140) for rolling and unrolling the rollable door about the roller; an opening mechanism and a closing mechanism for controlling the deployment of the rollable door by translating the roller across the doorway; and reusable sealing means (135, 136, 155, 156) for sealing between the lateral margins of the rollable door and the doorway; characterized in that the rollable door comprises a plurality of collapsible hoses (165, 166) connected to a pressurized fluid power system (160, 161, 163) such that in use a positive pressure applied to the fluid power system causes the rollable door to unroll from the roller and controls the deployment of the rollable door.

公开(公告)号：US11293285B2

公开(公告)日：2022-04-05

申请号：US16341170

申请日：2017-10-18

Applicant: THE SECRETARY OF STATE FOR DEFENCE

Inventor： Duncan Godfrey Mervyn Thompson

IPC: E21F17/107 ,  B64F5/40 ,  B63B81/00 ,  E21F1/10 ,  E21F1/14 ,  F16L55/11

Abstract: The present invention relates to a sealing system, its uses and method of use for forming a seal against a surface, and in particular for plugging and sealing an orifice such as a road or railway tunnel to prevent or minimise the dispersion of hazardous agent(s) in an emergency scenario. The system comprises a frame (200) which can be orientated against a surface (50) of an orifice, frame (10) comprising a perimeter outer surface (180) through which pliant elements (40) can extrude, via apertures (22), following the initiation of a means (30) for providing an overpressure.