Blocking devices for hollow structures
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 9, 2008
Grant Date -
Dec 22, 2005
app pub date -
Jun 14, 2005
filing date -
Jun 17, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A blocking device for mounting within a space defined within a hollow structure includes a holder and an expandable member. The holder is adapted to be mounted within the space. The expandable member is supported on the holder and is expandable by heat to form a foam member in order to block or substantially close the space. The holder includes a holder plate extending substantially perpendicular to the longitudinal axis of the space and supporting at least one side of the expandable member. The expandable member includes a constriction absorbing portion that is deformed so as to absorb potential constriction of the expandable member at the beginning of the expansion process of the expandable member.
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Cited Art Landscape
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