F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 39/00 (2006.01) F16L 1/024 (2006.01) F16L 1/06 (2006.01) F16L 7/02 (2006.01) F16L 9/18 (2006.01) F16L 41/08 (2006.01) F17D 1/00 (2006.01)
Patent
CA 2629678
An improved gas riser assembly for transmitting gas from an underground gas service line to a meter manifold includes an elongated plastic tube having a first end and a second end. The first end is adapted to be connected below ground to the underground gas service line and the second end is adapted to be disposed above ground. A protective casing is annularly received about the elongated plastic tube. The protective casing has a first end adapted to be disposed below ground and a second end disposed above ground. An adapter is sealingly connected to the second end of the elongated plastic tube for fluidly connecting the elongated plastic tube to the meter manifold. The adapter is also sealingly and weldlessly connected to the second end of the protective casing. To assemble the gas riser, an insert member of the adapter is connected to the second end of the elongated plastic tube. The insert member with the elongated plastic tube connected thereto is inserted into the second end of the protective casing until the insert member protrudes from the first end of the protective casing. A cover member of the adapter is threadedly connected to the insert member. The cover member is threadedly advanced along the insert member to capture a radial flange of the protective casing between the cover member and the insert member thereby securing the insert member and the cover member to the protective casing.
Brouillette & Associes/partners
Elster Perfection Corporation
LandOfFree
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