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US 11,193,622 B2Granted
Irrigation pipe liner
AssigneeLindsay Corporation
InventorThomas J. Korus
Life of this patent
Estimating the term…
Abstract
A pipe liner for lining a fluid-carrying pipe, the pipe liner comprising an elongated flexible conduit and a flexible flange. The flexible conduit includes an outer wall forming an open-ended central channel for allowing fluids to be pumped therethrough. The flexible flange extends radially from one end of the elongated conduit and includes a number of fastener holes. The flexible conduit and the flexible flange are configured to be collapsed and pulled through the pipe such that the flexible flange can be connected to a rigid flange of the pipe via the fastener holes. The pipe liner is less prone to leak and is easier to transport and install.
Claims20
A method of lining a pipe of an irrigation system, the method comprising the steps of:
- collapsing an elongated flexible conduit and a flexible flange of a pipe liner such that the flexible flange fits through the pipe, the flexible conduit including an outer wall forming an open-ended central channel and having opposing first and second ends and a plurality of outlet openings, the flexible flange extending radially from one of the first end and the second end;
- attaching a plurality of connectors to the flexible conduit via the plurality of outlet openings;
- urging the flexible flange through the pipe until the flexible flange is positioned externally near an end of the pipe with the flexible conduit extending through the pipe and the connectors being positioned near through-holes extending through an outer wall of the pipe;
- expanding the flexible flange to a non-collapsed configuration;
- aligning fastener holes of the flexible flange with fastener holes of a rigid flange of the pipe;
- aligning the connectors with the through-holes of the pipe;
- urging the connectors through the through-holes so that the connectors extend radially from the outlet openings of the flexible conduit;
- attaching water emitters to the connectors;
- and
- attaching the flexible flange to the rigid flange of the pipe.
7 more elements
A method of lining a pipe of an irrigation system, the method comprising the steps of:
- connecting a non-flanged end of an elongated flexible conduit of a pipe liner to a hose barb, the flexible conduit including an outer wall forming an open-ended central channel and having the non-flanged end, a flanged end opposite the non-flanged end, and a plurality of outlet openings, a plurality of connectors being attached to the flexible conduit via the plurality of outlet openings;
- collapsing the flexible conduit and a radially extending flexible flange of the pipe liner such that the flexible flange fits through the pipe;
- urging the flexible flange through the pipe after the non-flanged end is connected to the hose barb until the flexible flange is positioned externally near an end of the pipe with the flexible conduit extending through the pipe and the connectors being positioned near through-holes extending through an outer wall of the pipe;
- expanding the flexible flange to a non-collapsed configuration;
- aligning fastener holes of the flexible flange with fastener holes of a rigid flange of the pipe;
- aligning the connectors with the through-holes of the pipe;
- urging the connectors through the through-holes so that the connectors extend radially from the outlet openings of the flexible conduit;
- attaching water emitters to the connectors;
- and
- attaching the flexible flange to the rigid flange of the pipe.
7 more elements
A method of lining a pipe of an irrigation system, the method comprising the steps of:
- connecting a non-flanged end of an elongated flexible conduit of a pipe liner to a hose barb, the flexible conduit including an outer wall forming an open-ended central channel and having the non-flanged end, a flanged end opposite the non-flanged end, and a plurality of outlet openings;
- unfolding or unrolling the pipe liner from one of a folded configuration and a rolled up configuration;
- collapsing the flexible conduit and a radially extending flexible flange of the pipe liner such that the flexible flange fits through the pipe, a plurality of male-type helical thread connectors being attached to the flexible conduit via the plurality of outlet openings;
- urging the flexible flange through the pipe after the non-flanged end is connected to the hose barb until the flexible flange is positioned externally near an end of the pipe with the flexible conduit extending through the pipe and the connectors being positioned near through-holes extending upward through an outer wall of the pipe;
- expanding the flexible flange to a non-collapsed configuration;
- aligning fastener holes of the flexible flange with fastener holes of a rigid flange of the pipe;
- rotating the pipe liner about a longitudinal axis so that the connectors face the through-holes;
- aligning the connectors with the through-holes of the pipe;
- pulling the connectors through the through-holes via a hooking tool so that the connectors extend radially from the outlet openings of the flexible conduit;
- attaching water emitters to the connectors;
- and
- attaching the flexible flange to the rigid flange of the pipe.
9 more elements
Dependencies are inferred from the claim text.