Structure for converting a mechanical joint to a fusion joint
US6892753B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2002 |
| Grant date | May 17, 2005 |
| Priority date | — |
| Expiry date | Jun 13, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/6123
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The converter for converting a mechanical joint to a socket fusion joint includes a body having an inner surface, a stop disposed on the inner surface, and a fusion surface extending from the stop for a distance d1. The converter also includes a marker disposed on the outer surface for providing a reference location as to where the body can be severed to keep d1≧FM, wherein FM is the minimum fusion surface length allowable for the fusion socket joint. A method for repairing a leaking mechanical joint is provided which includes severing the mechanical coupling from the converter and the pipe. The method also includes performing a facing operation on the converter end surface to form a faced end such that the fusion surface extends between the faced end and a stop for an axial distance d1≧FM. The method also includes delineating a stab depth measurement on the outer surface of the pipe, inserting the pipe into the passage until the stab depth measurement is adjacent the faced end, and forming a socket fusion joint having a uniform fusion length FL=d1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.