Pipe coupling joint
US4541655A · kind A · utility
97Cited by
16References
5Claims
0Family size
Inventor
Key dates
| Filing date | Feb 7, 1983 |
| Grant date | Sep 17, 1985 |
| Priority date | — |
| Expiry date | Feb 7, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S285/915
- 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.