Firestop sleeve
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United States of America Patent
Stats
-
Mar 30, 1999
Grant Date -
N/A
app pub date -
Sep 19, 1997
filing date -
Sep 19, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A firestop sleeve suitable for both concrete floor and gypsum wall-board assembly including a layer of intumescent composite forming a moldable putty with a restraining layer, for wrapping around a pipe extending through the concrete floor or through the wall-board, along with a plurality of bendable tabs for depression into the wrapped layer to hold the restraining layer in position during installation.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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