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US 2020/0049301 A1Published application
Assembly For Relining A Junction Between A Branch Pipeline And A Main Pipeline, And For Relining A Part Of Or The Whole Branch Pipeline
AssigneePer Aarsleff A/A
InventorsMogens Pagter Rasmussen, Bent Sloth Rasmussen, Anna Amalie Larsen
Life of this patent
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Abstract
An assembly for relining a junction between a branch pipeline and a main pipeline comprises a seal installation device capable of moving within the main pipeline to the junction. The seal installation device includes a curable seal for being placed and pressed onto the junction and optionally for extending into the branch pipeline. The assembly further comprises a light curing device for being introduced into the seal installation device within the main pipeline and the branch pipeline for curing the seal.
Claims32
1-30. (canceled)
A kit comprising:
- a liner installation device, comprising:
- an elongate housing having opposed ends, an exterior wall, an internal longitudinal channel, a lateral opening formed in the exterior intermediate the ends and communicating with the channel, and further comprising:
- a guide element situated within the channel and movable between ramped and unramped relationships with the opening;
- a flexible, inflatable and deflatable bladder within which the housing is at least partially receivable, and comprising:
- a main portion having opposed ends;
- and
- a lateral portion that branches from the main portion at a position intermediate the ends of the main portion;
- and
- a flexible liner within which the bladder is at least partially receivable, and comprising:
- a tubular portion having opposed and open ends;
- and
- a brim portion that projects outwardly from the periphery of the tubular portion at one of its ends.
9 more elements
A kit comprising:
- a curable seal;
- and
- an installation device, comprising:
- a housing having:
- a first end;
- a second end;
- an outer wall extending between the first end and the second end, the outer wall defining a perforated structure and an opening disposed between the first end and the second end;
- and
- a guide element defining a first edge attached to the outer wall opposite the opening and a second edge opposite the first edge;
- in which the guide element is pivotable between a first position in which the second edge is located at the outer wall and a second position in which the second edge is located at the opening;
- and
- a bladder including the grid structure, the bladder having inflated and deflated positions, the bladder comprising:
- a first part extending between two ends;
- and
- a second part extending from the first part intermediate the ends of the first part;
- wherein the second part is receivable in an inverted shape within the outer wall when the bladder is deflated;
- in which the installation device is receivable within at least a portion of the curable seal.
14 more elements
A kit comprising:
- a liner installation device, comprising:
- an elongate housing having opposed ends, an exterior perforated wall and an internal longitudinal channel;
- a flexible, inflatable and deflatable bladder within which the housing is at least partially receivable, and comprising:
- a main portion having opposed ends;
- and
- a flexible liner within which the bladder is at least partially receivable;
- a light-emitting device receivable within the housing;
- a flexible, elongate sheathing attached to the light-emitting device, the sheathing being both pushable and pullable longitudinally;
- and
- a drive system configured to push and pull the sheathing longitudinally.
7 more elements
Dependencies are inferred from the claim text.