B - Operations – Transporting – 67 – D
Patent
B - Operations, Transporting
67
D
B67D 7/32 (2010.01) B67D 7/04 (2010.01) B67D 7/78 (2010.01) F16L 3/08 (2006.01) F16L 5/10 (2006.01) F16L 9/12 (2006.01) F16L 9/18 (2006.01) F16L 19/06 (2006.01) F16L 47/02 (2006.01) F16L 55/00 (2006.01) G01M 3/28 (2006.01) B67D 5/32 (2006.01) B67D 5/04 (2006.01) B67D 5/60 (2006.01)
Patent
CA 2130191
2130191 9317266 PCTABS00025 A secondarily contained underground piping system which interconnects at least one underground storage tank (TS1, TS2, TS3) dispensing pump to at least one above-ground dispensing unit. The system includes an originating chamber surrounding the dispensing pump and having at least one opening therein for pipe access thereto. A terminating chamber (CT2) is positioned directly under the above-ground dispensing unit and includes at least one opening therein for pipe access thereto. A transfer pipe (P1, P2) is operably connected from the dispensing pump to the above-ground dispensing unit, and passes through the openings in the originating chamber and the opening in the terminating chamber (CT2). Seals are provided for sealing the passage of the transfer pipe (P1, P2) through the openings. The transfer pipe (P1, P2) includes an inner primary supply pipe for transferring fuel and an outer secondary containment pipe for defining an interstitial space between the primary pipe and the containment pipe.
Borden Ladner Gervais Llp
Environ Products Inc.
LandOfFree
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