Pipe coupling with retrievable setting means
US3977702A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1975 |
| Grant date | Aug 31, 1976 |
| Priority date | — |
| Expiry date | Mar 13, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L21/007
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A coupling apparatus for making a coupling to a pipe or the like and which apparatus is provided with detachable and removable setting means in the form of hydraulic cylinders which may be reused to subsequently actuate other couplings. The coupling includes a housing which contains gripping and seal means for gripping and sealing with the pipe to which connection is to be made. Thrust means are provided and interposed between the aforesaid actuation means and the sealing and gripping means for urging the latter to the set position. Means in the form of either a split gripping ring or a plurality of gripping slips which are arranged for engaging the internal surface of the housing and retaining the first mentioned gripping means and seal means in the set position when the actuation means are removed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.