A multi-layer rolling fire curtain assembly includes: a multi-layer fire curtain wrappable about a roller and to be deployable between an extended position and an open position, such that a free end of the curtain is movable between a retracted position and an extended position. The fire curtain has a fire resistant inner curtain layer having a first width between first and second lateral edges, and a fire resistant outer curtain layer arranged opposite the inner layer and having first and second scalloped lateral edges varying between the first width and a second width less than the first width. The inner and outer layers are affixed to one another by horizontally oriented connection seams at the first width, the connection seams being configured so that the outer and inner layers are spaced apart by a plurality of baggy areas formed between adjacent connection seams.

A closure member control system for roll down smoke and/or gas barrier system includes a closure member which, when closed, maintains a spool with the barrier wound thereon within a housing. On deployment, the closure member opens and is prevented from closing by one or more cords connected to the spool.

A method for fire and smoke prevention, suppression or extinction using a composition having sodium polyacrylate and distilled water, wherein the ratio of sodium polyacrylate to distilled water is about 1 to 200, having the step of placing the composition in the path of the fire or smoke.

A fire protection curtain having a curtain panel that includes an outer wall and a chimney defining an inlet disposed on a first side of the chimney and an outlet on another side of the chimney. The chimney is in heat conductive association with the outer wall such that heat from a source outside the outer wall is transmitted to the chimney. Such heat transmission can cause the chimney to draw air into the inlet and expel the air out the outlet by chimney effect. The curtain is flexible and sufficiently large for covering at least a portion of a structure to protect the structure from an external fire.

A fire protection curtain having a curtain panel that includes an outer wall and a chimney defining an inlet disposed on a first side of the chimney and an outlet on another side of the chimney. The chimney is in heat conductive association with the outer wall such that heat from a source outside the outer wall is transmitted to the chimney. Such heat transmission can cause the chimney to draw air into the inlet and expel the air out the outlet by chimney effect. The curtain is flexible and sufficiently large for covering at least a portion of a structure to protect the structure from an external fire.

A sodium polyacrylate and distilled water composition for fire and smoke prevention, suppression or extinction, and methods of making and using the same.

A sodium polyacrylate and distilled water composition for fire and smoke prevention, suppression or extinction, and methods of making and using the same.

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.

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.

A multi-segmented, multi-plane, vertically deployable vapor and/or fire barrier assembly with a housing, a drive system, a folding barrier, a bottom plate, and motion sensors coupled to the bottom plate and coupled to a control system to detect operation and performance of the assembly, and related methods.