Abstract: A sealing gasket for use attached to the topmost edge of gypsum board used as construction wallboard. The gasket includes a support leg section capable of being mounted in engagement with the uppermost edge of the gypsum board. The gasket includes a sealing leg extending outwardly from said leg section which includes an intumescent component to facilitate sealing between the edge of the gypsum board and the wall structure above. The sealing leg preferably includes an intumescent impregnated paper material covered with a structurally enhancing layer. An adhesive layer can be included to attach the gasket to the gypsum wallboard. The sealing leg is preferably planar and extends upwardly and inwardly over the upper edge of the gypsum board at an obtuse angle with respect to the support leg for sealing the head-of-wall area thereabove.

Abstract: A firestopping sleeve positionable usually in walls which is self-adjusting and includes a sleeve defining an access corridor extending longitudinally therewithin with at least one firestopping pad positioned therein. The pad defines an access corridor extending therethrough for receiving wall penetrating cables which are firestopped therearound by the pad. A supplemental construction band is positioned extending around the pad for enhancing firestopping adjacent the penetrating wire for facilitating preventing the flow of heat, smoke or fire therepast.

Abstract: A sealing gasket for use attached preferably to the topmost edge of gypsum board when used as construction wallboard. The gasket includes a support leg section capable of being mounted in engagement with preferably the uppermost edge of the gypsum board. The gasket includes a sealing leg extending outwardly from said leg section which includes an intumescent component to facilitate sealing between the edge of the gypsum board and the wall structure above. In one embodiment the sealing leg includes an intumescent impregnated paper material covered with a structurally enhancing layer. An adhesive layer can be included to attach the gasket to the gypsum wallboard. The sealing leg is in this embodiment is planar and will extend upwardly and inwardly over the upper edge of the gypsum board at an obtuse angle with respect to the support leg for sealing thereabove in the head-of-wall area.

Abstract: A construction for effectively fireproof sealing of the gap between the floor of a building and an exterior wall construction wherein the exterior wall construction comprises a curtain wall configuration utilizing an interior panel module design. The insulating system includes a supplemental insulation belt positioned beneath the safing insulation and attached to the interior panel of a curtain wall construction to maintain sealing of the safing slot during exposure to fire and heat which can cause the interior panel to deform from heat warping to an extent beyond the capability of standard safing insulation for expanding in order to maintain a proper seal extending across the safing slot.

Abstract: An angular flange for reinforcing and firestopping in the annulus between a structural panel such as a wall, ceiling or floor and a duct extending therethrough. The prefabricated angular flange includes a first flange leg to be secured to the duct and a second flange leg with a sealing member preferably of flexibly resilient foam which could be intumescent attached to a surface of the second leg such that when the first flange leg is secured to the duct the second flange leg can be urged against the structural panel extending therearound with the sealing member positioned between the structural panel and the second flange leg and sealing the annulus.

Abstract: A firestopping device which is held between the flange of water closet flange assembly and the floor surrounding the opening containing the drain pipe which includes a securement section positioned therebetween for being held in place and an intumescent section extending radially inwardly therefrom to a position above the vertical drain pipe opening to facilitate intumescent expansion thereinto responsive to the exposure of heat.

Abstract: An angular flange for reinforcing and firestopping in the annulus between a structural panel such as a wall, ceiling or floor and a duct extending therethrough. The prefabricated angular flange includes a primary angular flange leg to be secured to the duct and a secondary angular flange leg approximately perpendicularly oriented relative thereto. Each flange includes a sealing member of flexible intumescent paper positionable therealong to facilitate firestopping therebetween. The sealing member preferably including two panels at an obtuse angle with respect to one another and being flexible to become approximately perpendicular with respect to one another responsive to securement of the angular flange to the duct and the surrounding structural panel. One or more uniquely designed corner brackets can be included for mounting the adjacently positioned angular flanges with respect to one another selectively.

Abstract: A collar positionable about a panel penetrating member for sealing therearound and particularly for firestopping therearound which prevents the flow of smoke and may include an intumescent component for expansion during exposure to heat. A collar assembly is usable with members penetrating various types of panels including walls, ceilings and floors. The sealing member of the assembly includes frangible zones with removable sections which are mated to the construction of the mounting strap. The mounting strap includes engagement prongs and multiple engagement apertures securable with respect to one another in various relative positions for use with respect to panel penetrating members of various standardized sizes. The engagement of the prongs in various apertures is mated with the frangible zones on the sealing member for effective sealing around panel penetrating members of standardized sizes such as 3 inch, 3½ inch, 4 inch and 4½ inch and others.

Abstract: A firestopping apparatus for providing a fire barrier in a construction barrier. The apparatus is comprised of a sleeve within which there are located intumescent pads that are oriented to form a confinement area therebetween to accommodate various penetrating members such as cables, conduits and the like that need to pass through the barrier. Upon sensing the heat from a fire, the intumescent pads seal around the penetrating members to prevent the fire from passing through the barrier. One or both of the intumescent pads is movable toward or away from the other so that the confinement area can be adjusted in size, that is, the confinement area can be increased in size to accommodate a large number of penetrating members of decreased to accommodate a lesser number. One or both of the intumescent pads may be biased in the direction toward decreasing the size of the confinement area.

Abstract: A multi-part mounting assembly for securing a plurality of individual pathway conduits relative to one another extending through a wall panel between adjacently positioned wall studs including two support members extending parallel to one another and defining therebetween a pathway conduit zone for receiving the individual conduits along with end members for providing sealing at the outermost edges and one or more partitioning means securable at a plurality of discrete positions within slots defined in the support members and being securable with respect to the support members and including set screws for safely holding pathway conduits in position extending therethrough.

Abstract: A self-adjusting firestopping apparatus for holding of intumescent material within poke-through openings in construction barriers usually being floors but also possibly being walls or ceilings wherein cables or other penetrating members extend therethrough. The self-adjusting apparatus includes a sleeve with the intumescent material centrally located therein and preferably two plates extending along the sleeve and movably attached thereto by a flexibly resilient support device such as a coil spring or flat spring. This plate provides a movable false panel which is adapted to expand responsive to the placement of increasing numbers of penetrating members extending therethrough to increase the capacity of the intumescent firestopping device.

Abstract: A system for sealing a joint gap between structural substrate panels such as walls, ceiling and floors making use of a sealing member including a mounting section fixedly secured to one of the surfaces and a covering member extending outwardly therefrom into contact with the other substrate member. These walls, ceilings and floors can be movable relative to one another and thus the present invention provides a mechanism for sealing the joint gap between the substrates while allowing them to move with respect to one another. This is achieved by fixedly securing the sealing member to one of the substrates and urging it into abutting engagement with respect to the other substrate.

Abstract: An intumescent firestopping apparatus used in poke-through applications for selectively sealing an opening through a construction barrier such as a wall, floor or ceiling having cables or other penetrating members extending therethrough. The apparatus effectively seals this barrier responsive to a fire to prevent unwanted transmission of fire through conventional construction barrier areas. The apparatus includes a sleeve with two intumescent pads positioned therein. At least one of the pads has an arcuate curved central section to be biased against the other intumescent pad to define therebetween a confinement area for holding of cables centrally located therein in a dynamically adjustable sealing throat defined therebetween. These pads can be variously mounted with respect to the adjacent wall structures and one or both of the pads can be arched toward the other pad to facilitate defining of the dynamic throat for receiving cables extending therethrough.

Abstract: The present invention provides a firestop collar with an improved apparatus and method for mounting thereof with respect to a annular cavity formed in a wall or floor around a pipe or other cylindrical member protruding therethrough. The collar member preferably is positioned adjacent to the surface surrounding the protruding member and contains preferably intumescent material therein which is responsive to heat in order to expand and fill the aperture extending through the wall or panel during heat, fire or smoke conditions. The anchoring device for the present invention is adapted to hold the collar in abutment with the structural wall in position surrounding the penetrating conduit and it includes two leg members and an arcuate member. The arcuate member extends between the leg members and is made of a flexibly resilient material and has a radius of curvature less than that of the protruding conduit.

Abstract: An intumescent material and a process for forming of an intumescent material is disclosed including a two stage intumescent expansion characteristic. The composition includes an intumescent material having a primary expansion ingredient such as expanding graphite in combination with a pre-expansion material adapted to provide intumescent expansion at a temperature less than that of the primary expansion material. The pre-expansion material preferably is a liquid isobutane encapsulated within microspheres of any latex material or polyvinylidene. The pre-expansion step allows for a low density mass having fairly uniform dimensions relative to the original proportions of the specimen. A novel process for forming same allows heating to a temperature greater than the pre-expansion temperature within a closed mold to prevent pre-expansion by containment therein and still allow heat fusing of the fire barrier form.

Abstract: An intumescent material and a process for forming of an intumescent material is disclosed including a two stage intumescent expansion characteristic. The composition includes an intumescent material having a primary expansion ingredient such as expanding graphite in combination with a pre-expansion material adapted to provide intumescent expansion at a temperature less than that of the primary expansion material. The pre-expansion material preferably is a liquid isobutane encapsulated within microspheres of any latex material or polyvinylidene. The pre-expansion step allows for a low density mass having fairly uniform dimensions relative to the original proportions of the specimen. A novel process for forming same allows heating to a temperature greater than the pre-expansion temperature within a closed mold to prevent pre-expansion by containment therein and still allow heat fusing of the fire barrier form.