Roof drain insert coupling
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 19, 1985
Grant Date -
N/A
app pub date -
May 2, 1983
filing date -
Apr 15, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pipe coupling device is disclosed for sealably securing a cylindrical outlet end of a roof drain insert, slidable within a larger diameter roof drain pipe, coaxially within the drain pipe. The coupling device comprises a compressible, rubber tubular member which when uncompressed is slidable into the drain pipe and which on compression by axially directed compressive forces expands radially outwardly sufficiently to sealably engage with interior surfaces of the drain pipe. The rubber tube is adapted on compression to sealably engage the drain insert. Screws which are turned to apply axial compressive forces to the rubber tube lie radially inside of the drain insert and are assessible for activation through the inlet end of the drain insert. The new pipe coupling provide a means mechanically locate the drain insert securely within an existing roof drain.
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Cited Art Landscape
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