Prehung fire door unit with one or two swing door leaf or leaves
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United States of America Patent
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Jun 28, 2016
Grant Date -
Mar 28, 2013
app pub date -
Jun 10, 2010
filing date -
Jun 8, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A prehung fire door unit with one or two swing door leaf or leaves intended to be mounted in an opening made in a stonework construction, rising up substantially vertically in a building. The prehung door unit includes a fixed frame and at least one door leaf, the fixed frame being able to be fitted, at least in part, into a recess made in the opening. The prehung door unit made of an assembly of profiled elements fitted end to end and each made from an elongate flat element made of rigid material having temperature and fire resistance properties and that can be applied, either directly or indirectly, against at least one of the closed end faces of the recess so as to create, in the closed end of the recess, an additional finishing and/or supporting thickness for each door leaf.
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Cited Art Landscape
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