Roof drain insert coupling

Details Roof drain insert coupling Roof drain insert coupling

F - Mech Eng,Light,Heat,Weapons

16

L

285/29, 20/106.1

F16L 27/12 (2006.01) E04D 13/04 (2006.01) E04D 13/08 (2006.01) F16L 7/02 (2006.01)

Patent

CA 1187129

ABSTRACT OF THE DISCLOSURE 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.

425977

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