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US 2012/0067518 A1Published application
Dual layer pipe
OwnerJang-sub Leeinventor
Life of this patent
Estimating the term…
Abstract
A corrugated steel pipe with a dual layer, and more particularly, to a corrugated steel pipe with a dual layer, which can dispose a smooth-walled plastic pipe in a corrugated steel pipe more conveniently, thereby providing a simple construction and conveniently assembling corrugated steel pipes while simultaneously improving a coupling force and a sealing force.
Claims3
A method of installing a dual layer pipe that includes a corrugated steel pipe, a smooth-walled plastic pipe, a coupling member, a fixing plate, and a fixing element, the method comprising:
- inserting the smooth-walled plastic pipe into the corrugated steel pipe;
- attaching the fixing plate to the smooth-walled plastic pipe;
- coupling the fixing plate to the corrugated steel pipe;
- and
- filling the fixing element with an adhesive resin to bond the corrugated steel pipe to the smooth-walled plastic pipe.
2 more elements
Dependencies are inferred from the claim text.