Internal pipe seal
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United States of America Patent
Stats
-
Jul 9, 2013
Grant Date -
Feb 26, 2009
app pub date -
Aug 7, 2008
filing date -
Aug 13, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A pipe sealing assembly for sealing a connection between a pair of pipes. The sealing assembly includes a generally cylindrical seal or gasket having a pair of axially spaced sealing portions joined by a bridge portion. Each sealing portion has a plurality of compressible sealing ridges, as well as an annular expansion band seat capable of receiving the expansion band of an expansion band assembly that is used to sealingly compress each sealing portion against a respective inner surface of a pipe. Additionally, each sealing portion may include a hollow section which houses the expansion band assembly, and may be provided with a small slit for installing the expansion band assembly and allowing access to the expansion mechanism of the expansion band assembly during installation, or a separate cover member for enclosing the expansion band assembly.
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