Device for permanent joining of tubes
US5738388A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 4, 1996 |
| Grant date | Apr 14, 1998 |
| Priority date | — |
| Expiry date | Nov 4, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S285/921
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A device for permanent joining of plastic tubes intended for use as covering or lining tubes when drilling holes in the ground including a female portion on a first tube and a male portion interacting therewith on a second tube. The male portion being provided with annular projections and recesses round its outer circumference and the female portion being provided with annular projections and recesses round its inner circumference with the recesses and projections on one tube interengaging with the projections and recesses on the other tube in such a fashion that at least one of the tubes is radially deformed and the joint can withstand axial and torsional forces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.