A door assembly includes: a rotatable curtain deployment member positionable about a structure opening; a curtain panel fixed to the curtain deployment member, the curtain being movable, upon rotation of the curtain deployment member, between a retracted position and an extended position, the curtain panel having at least one portion of increased thickness; a rotatable balancing strip member configured to substantially parallel with the curtain deployment member, and configured to rotate synchronously therewith in a common rotational direction, and a balancing strip having a first end attached to the balancing strip member, and a second end attached to the curtain deployment member and axially spaced from the portion of increased thickness. When the curtain panel deploys to the retracted position, the balancing strip deploys to the curtain deployment member, and when the curtain panel deploys to the extended position, the balancing strip deploys to the balancing strip member.

A door assembly includes: a rotatable curtain deployment member positionable about a structure opening; a curtain panel fixed to the curtain deployment member, the curtain being movable, upon rotation of the curtain deployment member, between a retracted position and an extended position, the curtain panel having at least one portion of increased thickness; a rotatable balancing strip member configured to substantially parallel with the curtain deployment member, and configured to rotate synchronously therewith in a common rotational direction, and a balancing strip having a first end attached to the balancing strip member, and a second end attached to the curtain deployment member and axially spaced from the portion of increased thickness. When the curtain panel deploys to the retracted position, the balancing strip deploys to the curtain deployment member, and when the curtain panel deploys to the extended position, the balancing strip deploys to the balancing strip member.

A system for protecting a structure in imminent threat of a fire hazard, the system includes a fire protective cover formed from a plurality of side-cover portions and a plurality of roof-cover portions, each of the side and roof -cover portions being adapted to attach to one or more eaves of the structure via a plurality of attachment elements, for example, clamps and the like. In addition, an optional cable may be engaged around a periphery of the structure and secured for holding the side-cover portions against side sections of the structure. A method is described for installing the system and fire protective cover thereof.

A system for protecting a structure in imminent threat of a fire hazard, the system includes a fire protective cover formed from a plurality of side-cover portions and a plurality of roof-cover portions, each of the side and roof -cover portions being adapted to attach to one or more eaves of the structure via a plurality of attachment elements, for example, clamps and the like. In addition, an optional cable may be engaged around a periphery of the structure and secured for holding the side-cover portions against side sections of the structure. A method is described for installing the system and fire protective cover thereof.

A fire containment system strung across the ground and methods of use thereof, that generally includes two or more vertical towers anchored in series in the ground, a lift system integral to each of said two or more vertical towers having a plurality of vertically slidable swivel joints capable of vertical travel there up one of the two or more vertical towers, one or more cables, each cable strung between one of the plurality of vertically slidable swivel joints on each of the two of the or more vertical towers, a fire proof curtain affixed to said one or more cables, a below ground storage to contain said fire proof curtain.

A fire containment system strung across the ground and methods of use thereof, that generally includes two or more vertical towers anchored in series in the ground, a lift system integral to each of said two or more vertical towers having a plurality of vertically slidable swivel joints capable of vertical travel there up one of the two or more vertical towers, one or more cables, each cable strung between one of the plurality of vertically slidable swivel joints on each of the two of the or more vertical towers, a fire proof curtain affixed to said one or more cables, a below ground storage to contain said fire proof curtain.

A fire barrier apparatus comprises a plurality of elongate, hollow barrier members. Each barrier member defines an interior, an inlet arrangement, through which, in use, air can enter the interior and an outlet arrangement, through which, in use, air can exit from the interior. The apparatus is arranged so that each barrier member abuts at least one adjacent barrier member.

A charging-discharging device for secondary battery and a secondary battery activation process device are provided. The charging-discharging device of the present invention includes a box-type body including two open parts formed at lateral surfaces thereof; charging-discharging terminals disposed on lateral surfaces of the body; a nonflammable blocking means for opening or closing the open parts at the lateral surfaces; an air conditioning line connected to the inside of the body to individually control the temperature of each charging-discharging device; and/or a CO 2 supply line for spraying carbon dioxide inside the body when a fire occurs. It is possible to uniformly control and manage the internal temperature of the charging-discharging device for performing an activation process of a secondary battery, and when a fire occurs, the fire can be immediately and efficiently extinguished and prevented from spreading to the outside.

A charging-discharging device for secondary battery and a secondary battery activation process device are provided. The charging-discharging device of the present invention includes a box-type body including two open parts formed at lateral surfaces thereof; charging-discharging terminals disposed on lateral surfaces of the body; a nonflammable blocking means for opening or closing the open parts at the lateral surfaces; an air conditioning line connected to the inside of the body to individually control the temperature of each charging-discharging device; and/or a CO 2 supply line for spraying carbon dioxide inside the body when a fire occurs. It is possible to uniformly control and manage the internal temperature of the charging-discharging device for performing an activation process of a secondary battery, and when a fire occurs, the fire can be immediately and efficiently extinguished and prevented from spreading to the outside.

A self-contained, portable firewall is provided having a rectangular configuration with a catwalk and a railing on the top side for accommodating a plurality of manned firefighting stations. The catwalk can comprise two openings, which can be covered by doors or hatches, that allow exit and entry of the manned firefighting stations through stairs located within the firewall structure. The stairs terminate at the floor and lead to a plurality of reinforced doors. Embodiments of the firewall comprise central doors having side doors flanking each central door, and each central door operatively associated with a status light. The manned firefighting stations are fed from at least one fluid input located at the bottom of the firewall structure, and the firewall structure further comprises a plurality of vents, fans and fume hoods.