Hydrophilic end seal
View Patent ↗A kit, apparatus, and method for sealing a junction between a manhole and a pipe within a sewer system are provided. In a first embodiment, the end of a pipe adjacent a manhole is sealed by the use of a pipe liner and a tubular sleeve made of a hydrophilic material. In a second embodiment, a majority of the area surrounding a junction of a pipe and a manhole is sealed by the use of a tubular sleeve made of a hydrophilic material including a flange portion, a pipe liner, and a manhole liner.
1. A pipe end seal comprising:
a molded, self-supporting tubular sleeve having an outer diameter approximately equal to an end of a pipe to be sealed; and
a pipe liner in contact with an inner wall of the tubular sleeve.
2. The pipe end seal of claim 1 , wherein the tubular sleeve comprises a hydrophilic material.
3. The pipe end seal of claim 2 , wherein the tubular sleeve comprises an elastomer.
4. The pipe end seal of claim 3 , wherein the tubular sleeve comprises a rubber.
5. The pipe end seal of claim 4 , wherein the tubular sleeve has is hardness between 5 shore A durometer scale and 80 shore D durometer scale.
6. The pipe end seal of claim 5 , wherein the tubular sleeve has thickness of 1-8 mm and a length of 2-10 inches.
7. The pipe end seal of claim 1 , wherein the tubular sleeve further comprises a flange portion.
8. The pipe end seal of claim 1 , wherein the pipe liner is a selected from the group consisting of a cured-in-place pipe liner, a folded liner, or it spray-on liner.
9. The pipe end seal of claim 1 , wherein the pipe to be sealed is a sewer pipe.
10. A method of sealing a pipe end, comprising:
providing a molded, self-supporting tubular sleeve having an outer diameter approximately equal to an end of a pipe to be sealed;
placing the tubular sleeve within the pipe to be sealed adjacent the pipe end; and
placing a pipe liner against an inner wall of the tubular sleeve.
11. The method of claim 10 , wherein the tubular sleeve comprises a hydrophilic material.
12. The method of claim 10 , wherein the tubular sleeve comprises a rubber.
13. The method of claim 10 , wherein the pipe liner is a selected from the group consisting of a cured-in-place pipe liner, a folded liner, or a spray-on liner.
14. The method of claim 10 , wherein the tubular sleeve further comprises a flange portion.
15. The method of claim 14 , wherein the flange portion extends generally greater than the pipe liner.
16. The method of claim 15 , further comprising placing a second liner against the flange portion.
17. The method of claim 16 , wherein the second liner is a manhole liner and the pipe to be sealed is a sewer pipe.
18. The method of claim 17 , wherein the manhole liner is selected from the group consisting of a cured-in-place manhole liner, a spray-on manhole liner, a cementitious manhole liner, a cast-in-place manhole liner, and a resin manhole liner.
19. The method of claim 10 , wherein the pipe to be sealed is a sewer pipe.