F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
189/68
F16L 57/00 (2006.01) F16L 57/02 (2006.01)
Patent
CA 1169790
Abstract of the Disclosure A stabilized sleeve arrestor is described as well as the method of mounting the same on a high pressure pipeline. A cylindrical sleeve is first placed on the line pipe and has upper and lower openings formed therein. The ends of the sleeve are sealed with plastic tape or the like and reinforcing straps are mounted thereon. A urethane elastomer filler material is forced through the bottom opening to fill the annular space between the sleeve and the exterior surface of the pipe. The material is pumped into the annular space until it flows from the upper opening. After curing, the reinforcing straps are removed. The filler material causes the sleeve to adhere to the pipe to prevent longitudinal displacement of the sleeve should a crack occur. The filler material also prevents corrosion between the sleeve and the pipeline.
397664
Grose Ronald D.
Johnson David L.
Jones Brian L.
Wassell Gordon C.
Northern Border Pipeline Company
Ridout & Maybee Llp
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