Reinstatement of an existing connection in a lined conduit
US8015695B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2007 |
| Grant date | Sep 13, 2011 |
| Priority date | — |
| Expiry date | Jul 3, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53039
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A process and apparatus for internally reinstating a connection in a lined conduit is provided. The connection may be a branch pipe or corporation stop that may or may not protrude into the conduit. It may be milled prior to lining. The process includes the step of locating the connection visually or with a probe, such as all eddy current probe. forming at an opening in the lining at the connection and then installing a T-nut with a sealing gasket facing the liner to hold the liner in place and form a seal between the T-nut and liner and the connection. The apparatus includes a motor coupled to a turntable with drive to install the T-nut and a supply of T-nuts mounted on a slide for loading the T-nuts onto the drive for installation of the T-nuts without having to remove the assembly between each installation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.