Gasket-less vent pipe coupling

Details Gasket-less vent pipe coupling Gasket-less vent pipe coupling

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 37/107 (2006.01) F16L 39/00 (2006.01) F23J 13/04 (2006.01)

Patent

CA 2587062

A coupling feature for double-walled pipes. A double-walled vent pipe section has an outer wall with corresponding male and female coupling features formed on opposite ends thereof. The inner wall of the double-walled pipe section has a small ridge formed around the circumference of one end. When pipe sections are coupled together, the male and female coupling features on the outer walls engage, and the ridge on the inner wall of one pipe section engages with the bare inner wall of the other pipe section.

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