"Lining of ""Tees"" and ""Wyes"" in pipelines or passageways"
US5927341A · kind A · utility
57Cited by
17References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 25, 1996 |
| Grant date | Jul 27, 1999 |
| Priority date | — |
| Expiry date | Mar 25, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/246
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention provides a tailored assembly of a flexible resin absorbent material (22, 24, 26). It is in the form of a "T" and is of tubular cross section. The arms of the T are intended to lie on the surface of a main underground pipe which the leg of the T extends into a lateral pipe which connects with the main pipe. The whole assembly is soaked in curable synthetic resin and it is placed in position and held there whilst resin cures by means of an inflatable bag (28) which is located inside the assembly and is also tailored to T configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.