Device and method for repairing pipe
DC CAFCFirst Claim
Patent Images
1. An apparatus for repairing a main pipe line and a lateral pipe line connected thereto and in communication therewith to form a pipe joint, comprising:
- a bladder assembly comprising a main bladder tube and a lateral bladder tube extending from the main bladder tube;
a liner assembly comprising a main liner member at least partially surrounding the main bladder tube and a lateral liner tube extending from the main liner member;
the lateral liner tube and lateral bladder tube extendable to a position within the lateral pipe line with the lateral liner tube between the lateral pipe line and the lateral bladder tube; and
a gasket comprising a hydrophilic rubber, the gasket positioned at least partially surrounding the main liner member and the lateral liner member between the main liner member and the pipe joint, the gasket capable of swelling in reaction to contact with a liquid.
4 Assignments
Litigations
2 Petitions
Accused Products
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.
43 Citations
37 Claims
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1. An apparatus for repairing a main pipe line and a lateral pipe line connected thereto and in communication therewith to form a pipe joint, comprising:
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a bladder assembly comprising a main bladder tube and a lateral bladder tube extending from the main bladder tube; a liner assembly comprising a main liner member at least partially surrounding the main bladder tube and a lateral liner tube extending from the main liner member; the lateral liner tube and lateral bladder tube extendable to a position within the lateral pipe line with the lateral liner tube between the lateral pipe line and the lateral bladder tube; and a gasket comprising a hydrophilic rubber, the gasket positioned at least partially surrounding the main liner member and the lateral liner member between the main liner member and the pipe joint, the gasket capable of swelling in reaction to contact with a liquid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for repairing a main pipe line and a lateral pipe line connected thereto and in communication therewith to form a pipe joint, comprising:
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a bladder assembly comprising a main bladder tube and a lateral bladder tube extending from the main bladder tube; a liner assembly comprising a main liner member at least partially surrounding the main bladder tube and a lateral liner tube extending from the main liner member; the lateral liner tube and lateral bladder tube extendable to a position within the lateral pipe line with the lateral liner tube between the lateral pipe line and the lateral bladder tube; and a band of hydrophilic paste disposed on the main liner member around the lateral liner member and between the main liner member and the main pipe line at the pipe joint. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A method of repairing a main pipe line and a lateral pipe line connected thereto and in communication therewith to form a pipe joint, comprising:
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taking a bladder assembly including a main bladder tube and a lateral bladder tube; taking a liner assembly including a main liner member and a lateral liner tube in communication with one another at a liner juncture; impregnating the liner assembly with a material capable of curing and hardening; applying a band of hydrophilic paste on the outside of the main liner member and around the lateral liner tube at the liner juncture; expanding the bladder assembly to position the lateral liner tube against the lateral pipe line and the main liner member against the main pipe line, with the band of hydrophilic paste between the main liner member and the main pipe line at the pipe joint. - View Dependent Claims (18, 19, 20, 21, 22)
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23. A method of repairing a main pipe line and a lateral pipe line connected thereto and in communication therewith to form a pipe joint, comprising:
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taking a bladder assembly comprising a main bladder tube and a lateral bladder tube; taking a liner assembly comprising a main liner member and a lateral liner tube in communication with one another at a liner juncture; impregnating the liner assembly with a material capable of curing and hardening; applying a hydrophilic paste to the liner assembly and around at least a portion of the liner juncture; and expanding the bladder assembly to position the lateral liner tube against the lateral pipe line and the main liner member against the main pipe line; wherein the hydrophilic paste is between the main liner member and the main pipe. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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31. An apparatus for repairing a main pipe line and a lateral pipe line connected thereto and in communication therewith to form a pipe joint, comprising:
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a bladder assembly comprising a main bladder tube and a lateral bladder tube extending from the main bladder tube; a liner assembly comprising a main liner member at least partially surrounding the main bladder tube and a lateral liner tube extending from the main liner member and in communication with the main liner member at a liner juncture; the lateral liner tube and lateral bladder tube extendable to a position within the lateral pipe line with the lateral liner tube between the lateral pipe line and the lateral bladder tube; and a hydrophilic paste disposed on the liner assembly and at least partially around the liner juncture when the lateral liner tube is extended into the lateral pipe line. - View Dependent Claims (32, 33, 34, 35, 36, 37)
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Specification