Device and method for repairing pipe
US8375972B2 · kind B2 · utility
20Cited by
7References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 15, 2008 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | Dec 7, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/598
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention includes a device and method for reinforcing the portions of an inflation bladder not contained by a liner in pipeline renewal applications. A liner/bladder assembly is provided wherein the liner is positioned relative to the bladder such that a portion of the bladder having a greater wall thickness extends beyond the ends of the liner. The present invention also includes a device and method for repairing the junction of a main pipe and the lateral pipe with bladders reinforced in areas unconstrained by the liners.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.