Expandable high-pressure flexible-tube device
US5702109A · kind A · utility
18Cited by
7References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1995 |
| Grant date | Dec 30, 1997 |
| Priority date | — |
| Expiry date | Dec 13, 2015 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/1277
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An expandable high-pressure flexible tube device for sealing piping in gas or oil fields. The device comprises two end pieces interconnected by a tubular element having an elastomeric material and sheets of coils round about its longitudinal axis at a small angle of about 10.degree. to 15.degree. relative thereto. The sheets comprise strong helical textile cords mutually separated by a predetermined spacing. A sheet having longitudinal textile cords extends over the whole length of the device, the helical cords and longitudinal cords being imbedded in the elastomeric material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.