Preloaded misalignment pipe connector
US4133557A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 12, 1977 |
| Grant date | Jan 9, 1979 |
| Priority date | — |
| Expiry date | Aug 12, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/5367
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A misalignment conductor for large pipelines or conductor pipes includes an internal, metal seal ring having an external spherical surface which is axially and circumferentially loaded between opposed internal spherical metal surfaces of connector hubs. Connector body parts engaged with or formed on the pipe connector ends or hubs have spherical surfaces enabling the connector to be made up with the pipe connector hubs disposed over a range of angular misalignment. The sealing ring is preloaded by a loading tool when the connector body parts are secured together to prevent relaxation of the preload on the sealing ring. The metal sealing ring is initially supported on one of the hubs by means enabling angular adjustment of the sealing ring as it is loaded between misaligned hubs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.