专利名称：Apparatus for reinforcing and firestopping
around a duct extending through astructural panel
发明人：James P. Stahl,James P. Stahl申请号：US11432092申请日：20060511
公开号：US20070261339A1公开日：20071115
专利附图：
摘要：An angular flange for reinforcing and firestopping in the annulus between astructural panel such as a wall, ceiling or floor and a duct extending therethrough. The
prefabricated angular flange includes a first flange leg to be secured to the duct and asecond flange leg with a sealing member preferably of flexibly resilient foam which couldbe intumescent attached to a surface of the second leg such that when the first flangeleg is secured to the duct the second flange leg can be urged against the structuralpanel extending therearound with the sealing member positioned between the structuralpanel and the second flange leg and sealing the annulus.
申请人：James P. Stahl,James P. Stahl
地址：Stockton NJ US,Flemington NJ US
国籍：US,US
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