Method and apparatus for firestopping a through-penetration

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

2004-08-24

2010-02-23

Chapman, Jeanette (Department: 3633)

Static structures (e.g., buildings)

Wall, ceiling, or floor designed for utilities

Having a passageway through the entire wall, ceiling, or...

C052S317000, C052S220100, C052S784110, C052S232000, C052S218000

Reexamination Certificate

active

07665256

ABSTRACT:
A method and apparatus for creating firestopping barrier in a partition, such as a wall, floor, or ceiling, that is mounted adjacent the opening includes a housing containing a central opening. The cross-sectional area of the housing is greater than the cross-sectional area of the through-penetration opening, and the housing is arranged external to the through-penetration opening with at least a portion thereof extending along a surface of the partition thereby to allow the housing to be installed adjacent the through-penetration opening. Firestop material is arranged within the housing.

REFERENCES:
patent: 4304079 (1981-12-01), Thorsten
patent: 4493173 (1985-01-01), Kohaut
patent: 4496790 (1985-01-01), Spencer
patent: 5373932 (1994-12-01), Stobich et al.
patent: 6928777 (2005-08-01), Cordts
patent: 2004/0016191 (2004-01-01), Whitty
patent: 2004/0093815 (2004-05-01), Cordts
patent: 90 03 636 (1990-05-01), None
patent: 0 869 303 (1998-10-01), None

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