Fire resistant barrier

a fire barrier and fire-resistant technology, applied in the field of fire barriers, can solve the problems of chancy process, time-consuming and laborious, and inability to provide a mechanism to ensure integrity,

Inactive Publication Date: 2011-10-20
E Z BARRIER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The solution maintains fire barrier integrity, allows for efficient installation of fixtures, and provides a reliable thermal and sound barrier, ensuring compliance with extended fire ratings like 2 hours under ASTM E-119 testing.

Problems solved by technology

The construction of this box is a time consuming task and provides no mechanism to ascertain to what degree the effectiveness of the fire barrier is restored.
Constructing a box that provides egress for these conduits while maintaining integrity as a fire barrier is often a time-consuming and chancy process.
Also, many fire barrier boxes constructed at the job site may prove inadequate for applications requiring extended fire ratings, such as two hours or more.

Method used

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Examples

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Embodiment Construction

[0015]Reference is now made to the figures, in which like element numbers refer to like elements throughout. FIG. 1 is a perspective view of a box 100, which includes a wall104 defining cavity 102. Opening 106 provides access to cavity 102 and flange 108 is disposed proximate opening 106. It is to be understood that, while wall 104 is shown in FIG. 1 to be comprised of five flat surfaces and the opening, any shape defined by a cavity and having an opening may be suitable. For example, a cylinder open at one end may be suitable.

[0016]Flange 108 may be comprised of one or more individual pieces 110 and generally defines a flat surface 112 facing away from cavity 102. Flange 108 is shown as comprising a lip extending a uniform distance away from the edge of the opening. It is to be understood however, that many more configurations that may be suitable are contemplated. For example, flange 108 may have struts which extend over the opening to provide means for attaching a device such as ...

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Abstract

A fire resistant assembly, which may comprise a first layer having a lumen therein, a second layer adjacent the first layer, a first structural member disposed between the first and second layers, and a box having a cavity defined by a wall, a first opening in the wall, a flange proximate the first opening, and optionally a second opening in the wall, wherein the box is disposed between the first layer and the second layer and wherein the opening is disposed on the lumen of the first layer, the box comprising a further fire resistant feature such as an intumescent ring disposed about the second opening, a plenum wrap layer, or an intumescent layer, and various methods and apparatuses related thereto.

Description

RELATED APPLICATIONS[0001]This application is a continuation of U.S. application Ser. No. 10 / 988,794 filed Nov. 15, 2004, now U.S. Pat. No. 7,812,253.FIELD OF THE INVENTION[0002]The invention relates to a fire barrier having a recess for a device. More particularly, the invention relates to a recessed box installed in a building for use with maintaining a minimum fire endurance of a building surface.BACKGROUND OF THE INVENTION[0003]Typically, a surface of a building such as a floor, a ceiling between levels, or a ceiling under an attic provides a fire barrier. A fire barrier resists the spread of a fire through it by providing a resistance to flammability, a resistance to heat transmission, and sufficient structural integrity to resist decomposing when exposed to heat or flames. The effectiveness of a fire barrier is often rated by exposure to a fire of specified and increasing intensity and a rating is a period of time, typically in hours during which the fire barrier is effective....

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): B65D71/00
CPCH02G3/088A62C2/065
InventorMOSELLE, HAPPY
OwnerE Z BARRIER