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Method and apparatus for firestopping a through-penetration

A technology of equipment and fire-blocking materials, applied in the field of fire-blocking systems

Inactive Publication Date: 2009-08-26
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, these existing devices and technologies have certain shortcomings and deficiencies.

Method used

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  • Method and apparatus for firestopping a through-penetration
  • Method and apparatus for firestopping a through-penetration
  • Method and apparatus for firestopping a through-penetration

Examples

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Embodiment

[0043] In order to make the description of the present invention easier to understand, the following examples are presented. It should be understood that this example is for illustrative purposes only, and is not construed to limit the present invention in any way.

[0044] According to ASTM E814-02, there is a design with attached Figure 4 A similar firestop is shown installed in a through hole formed in an 8 inch thick concrete floor, in this design bulkhead 134 and cover 136 are not included. The first firestop material 12 and the second firestop material 14 are multilayer laminates comprising a first outer layer of stainless steel foil, an Interam disposed adjacent to the layer of stainless steel foil TM Ultra GS Intumescent Cushion, and Interam TM Fiberglass braid positioned adjacent to the Ultra GS intumescent mat, and a second outer layer of stainless steel foil positioned adjacent to the fiberglass braid. The second firestop material 14 is attached to the inner w...

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Abstract

The invention relates to a device for forming a fire barrier in a through hole, which includes a support mechanism arranged in the through hole, a fire blocking material movably connected with the support mechanism, and a fireproof material movably connected with the support mechanism. The firestop between the firestop and the interior surface of a penetrating hole.

Description

technical field [0001] The present invention generally relates to a fire protection system, and more particularly, to a method and apparatus for retaining a fire through an opening in a wall, floor or ceiling through which an item such as a cable or wire passes. Background technique [0002] The way smoke and fire travel from one room of a building to another is through passages or openings, usually through holes in floors, walls, or ceilings, etc. Such openings are used to allow cables, wires, water pipes, etc. to pass through the interior of the building. [0003] The current method used to prevent the spread of fire and the passage of smoke through these openings is to use expansion sheets that are cut to the contours of the through cable. Compression-moldable expansion oil beads are provided along the periphery of these expansion sheets. [0004] This method generally prevents the spread of fire and blocks the transmission of smoke from one room to another, but the ins...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G3/04
CPCH02G3/0412B32B5/245B32B15/046B32B15/14B32B27/12H02G3/22B32B2262/101B32B2266/08
Inventor B·L·考德茨
Owner 3M INNOVATIVE PROPERTIES CO
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