Device and method for repairing pipe
AssigneeLMK Technologies, LLC
InventorLarry W. Kiest, JR.
Life of this patent
Estimating the term…
Abstract
A liner tube is provided for repairing either a single pipe line or a main pipe line having a lateral pipe line connected thereto. The liner tube assembly includes a liner tube impregnated with a liquid material capable of curing and hardening. The liner tube includes a gasket or band positioned about the juncture of the pipe lines. The gasket or bands form a tight seal between the liner tube and the pipe line.
Claims23
A liner assembly for repairing an existing sewer pipe comprising:
- a body portion comprising a resin impregnatable material for extending into a lateral portion of a
- sewer pipe;
- a flange assembly supported by the body portion, the flange assembly including a collar portion
- extending into a main portion of a sewer pipe;
- and
- a seal attached to the collar portion of the flange assembly for sealing against an inner surface of
- the main portion of the sewer pipe, wherein the seal comprises a hydrophilic gasket.
A method of lining a sewer pipe comprising:
- positioning a liner assembly within a sewer pipe, wherein the liner assembly includes a body
- portion of resin absorbable material and a flange assembly attached to the body portion, the flange assembly including a collar portion for extending around an opening of a lateral portion of the sewer pipe at a junction between the lateral sewer pipe and a main sewer pipe and a hydrophilic gasket secured to the collar portion;
- aligning the collar portion with the opening to the lateral portion of the sewer pipe;
- applying a fluid pressure within the body portion to extend the lateral portion within the lateral
- portion of the sewer pipe, and holding the body portion against an inner surface of the lateral portion until resin absorbed within the body portion cures;
- and
- applying a fluid pressure against the collar portion to force the hydrophilic gasket against an
- inner surface of the main sewer pipe surrounding the opening to the lateral portion until the body portion and the collar portion are cured.
A liner assembly for lining a junction between a main sewer pipe and a lateral sewer pipe comprising:
- a lateral portion comprising a flexible resin impregnable material forming a tube;
- a main portion including a resin impregnable material attached to the lateral portion, the main
- portion extending a distance outward from the lateral portion for surrounding an opening in the main sewer pipe for the lateral sewer pipe;
- and
- a hydrophilic seal supported on one of the lateral and main portions for sealing a junction between the main sewer pipe and the lateral sewer pipe, wherein the hydrophilic seal comprises a gasket supported on the main portion.
A liner assembly for lining a junction between a main sewer pipe and a lateral sewer pipe comprising:
- a lateral portion comprising a flexible resin impregnable material forming a tube:
- a main portion including a resin impregnable material attached to the lateral portion, the main
- portion extending a distance outward from the lateral portion for surrounding an opening in the main sewer pipe for the lateral sewer pipe;
- and
- a hydrophilic seal supported on one of the lateral and main portions for sealing a junction
- between the main sewer pipe and the lateral sewer pipe, wherein the main portion comprises a first surface for contacting an inner surface of the main sewer pipe and the hydrophilic seal is supported on the first surface.
Dependencies are inferred from the claim text.