Title:
FIRESTOP COUPLING FOR PENETRATION OF BUILDING SEPARATIONS
Document Type and Number:
WIPO Patent Application WO2002057555
Kind Code:
A3
Abstract:
A cast-in-place coupling (6) is positioned on concrete forms (2) by detachable attachment means (7, 10). The coupling (6) may have breakaway tabs (7) or may be frictionally engaged to a fitting (10) fastened to a form (2). After concrete is poured the attachment means (7, 10) is separated from the coupling (6) with minimum effort and inconvenience. The coupling (6) itself contains an intumescent which causes the coupling (6) to convert to a firestop under file conditions.
Inventors:
SAKNO MICHAEL P (CA)
Application Number:
PCT/CA2002/000062
Publication Date:
February 27, 2003
Filing Date:
January 16, 2002
Export Citation:
Assignee:
SAKNO MICHAEL P (CA)
International Classes:
B28B23/00; E04G15/06; F16L5/04; (IPC1-7): B28B23/00; E04G15/06; F16L5/04
Foreign References:
| US4877216A | 1989-10-31 | |||
| GB2278387A | 1994-11-30 | |||
| US6088972A | 2000-07-18 | |||
| US4882886A | 1989-11-28 |
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