Lateral pipe lining material and lateral pipe lining method

Details Lateral pipe lining material and lateral pipe lining method Lateral pipe lining material and lateral pipe lining method

2007-12-25

2007-12-25

Brinson, Patrick F. (Department: 3754)

Pipes and tubular conduits

Repairing

Patches

C138S097000, C405S150100, C405S184200, C264S267000, C264S269000, C156S287000, C156S294000

Reexamination Certificate

active

11261167

ABSTRACT:
A lateral pipe lining material comprises a tubular resin absorbing material impregnated with a setting resin, which has a flange at one end thereof and whose outer surface is coated with a highly airtight film. A sealing tube is detachably attached to the outer circumferential surface of the tubular resin absorbing material. The lateral pipe lining material is introduced inside a main pipe and its flange is brought into tight contact with the lateral pipe opening. The lateral pipe lining material including the sealing tube is then everted and inserted by fluid pressure inside a lateral pipe toward the ground level. After the setting resin is cured, the sealing tube is removed from the lateral pipe lining material. This enables the lining of a lateral pipe to always be performed reliably, regardless of the aboveground circumstances.

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