Misalignment pipe connector
US4133558A · 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 F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L27/073
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A misalignment connector for large pipelines includes an internal, metal seal ring having an external spherical surface which is axially and circumferentially loaded between opposed internal spherical metal surfaces of pipe connector hubs having parts engaged with holding means having spherical surfaces enabling the connector to be made up with the pipe connector hubs disposed over a range of angular misalignment and with the sealing ring loaded axially and inwardly when the connector body parts are secured together by the holding means 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 relative angular motion of the sealing ring as it is loaded between misaligned hubs. The hubs are provided with thrust surfaces enabling them to be initially preloaded against the sealing ring by a loading tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.