F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 9/19 (2006.01) F16L 39/00 (2006.01)
Patent
CA 2107562
2107562 9217725 PCTABS00016 A double containment pipe assembly having curved portions formed from elbow fittings (10, 12) extending between straight portions of an inner and outer concentric pipe assembly. The elbows or curved fittings (10, 12) occupy the same angular sector of a circle and are concentric to each other. The spacing between the inner and outer curved surfaces of the fittings of the elbows (10, 12) is consistent and the same throughout the radius of curvature of the elbows. This provides maximum protection against contact of the inner and outer fittings (10, 12) during thermal expansion and contraction of the pipe. Straight portions of pipe (18, 20) can be secured to opposite faces (14, 16) of the fittings for ease of field fabrication of the double containment pipe assembly. The straight portions may be butt-welded or joined by butt-and-wrap techniques to the end faces (14, 16) of the fittings or nested in or over sockets (14', 16') provided at the end faces.
Double Containment Systems Corp.
Ridout & Maybee Llp
LandOfFree
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