Rigid connector for pipe and method of making the same
US4124229A · kind A · utility
16Cited by
6References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 4, 1977 |
| Grant date | Nov 7, 1978 |
| Priority date | — |
| Expiry date | May 4, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49945
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pipe connector has a pin initially stabbed into a box, the pin and box then being axially loaded together at confronting transverse surfaces while the pin and box are pressurized to expand the box and compress the pin, so that when the pressure is relieved a pressure energized shrink fit is provided and the connector is rendered rigid to enhance tensile, compressive and bending strength and provide a fluid tight joint useful in making up lengths of pipe such as piles and pipelines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.