Apparatus for making pipe coupling joint
US4418458A · kind A · utility
39Cited by
7References
2Claims
0Family size
Inventor
Key dates
| Filing date | Nov 18, 1980 |
| Grant date | Dec 6, 1983 |
| Priority date | — |
| Expiry date | Nov 18, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53996
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Disclosed is a pipe coupling joint comprising an interference fit coupling of unthreaded pipe sections. The end of the outer pipe in a telescoped interference fit coupling is radially compressed to form a groove in the inner pipe. The crimped end is compressed into the groove to securely couple the pipe sections together. Lined pipe joints and methods and apparatus for forming the improved interference fit joint are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.