Axially restrained pipe joint with improved locking ring structure
US4685708A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1986 |
| Grant date | Aug 11, 1987 |
| Priority date | — |
| Expiry date | Mar 7, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L37/0927
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An improved form of articulated, segmented ring structure for an axially restrained pipe joint has an articulated, segmented ring formed from articularly interconnected ring segments and a ring adjustment mechanism operable from the exterior of the pipe joint for radially contracting the ring onto the spigot end of one pipe received within the bell end of another pipe. The segmented ring structure provides improved flexiblity in joint assembly and enhanced deflection characteristics for accommodating axial misalignment of the pipes. A ring adjustment mechanism is disclosed which is particularly suitable for use in many cases, including underwater and other limited visibility applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.