F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 55/165 (2006.01) F16L 19/06 (2006.01) F16L 19/07 (2006.01) F16L 21/04 (2006.01) F16L 25/12 (2006.01)
Patent
CA 2297451
The invention provides a pipe coupling for connecting to a pipe member having a liner pipe disposed therein; the pipe coupling comprising a first sleeve member for receiving an end of the pipe member whereby an end of the liner pipe can protrude therefrom; a second sleeve member configured at one end thereof to receive the protruding end of the liner pipe and having at the other end thereof a substantially plain-ended spigot formation for insertion into and attachment to another pipe coupling or pipe member; an annular collar disposed axially outwardly of the first sleeve member and being arranged in use to encircle the pipe member; a first annular sealing means disposed axially between the annular collar and the first sleeve member and arranged in use to encircle the pipe member; a second annular sealing means disposed axially between the first and second sleeve members and arranged in use to encircle the protruding liner pipe; means for drawing the annular collar and first sleeve member axially together such that the first annular sealing means is compressed therebetween and is deformed radially inwardly to seal against the pipe member; and means for drawing the first and second sleeve members axially together such that the second annular sealing member is compressed between the first and second sleeve members and is deformed radially inwardly into sealing contact with the end of the liner pipe.
Harper Brian
Rex Brian
Glynwed Pipe Systems Ltd.
Marks & Clerk
LandOfFree
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