Flexible tubular pipe comprising an interlocked armouring web
US6192941A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1999 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Apr 26, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L11/083
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A flexible tubular hose, in particular for transporting fluids under pressure, comprising pressure-resistant armoring constituted by winding at least one pair of interlockable metal section wires, one of which has a T-section and the other of which has a U-section, the ribs of the T-section wire being directed toward the outside of the flexible tubular hose and the ribs of the U-section wire being directed toward the axis of the flexible tubular hose. The area of the cross section of the T-section wire (3) is substantially greater than the area of the cross section of the U-section wire (4), and in each lateral interlock zone constituted on the one hand by a lateral rib (13) of the U-section wire (4) engaged in a lateral groove of the T-section wire (3), and on the other hand by a lateral rib (9) of the T-section wire facing the base portion (12) of the U-section wire between the two ribs (13) of this U-section wire, there is both contact between the lateral rib of a first of the two section wires and the second section wire, and radial clearance between the lateral rib of the second section wire and the first section wire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.