Reinforced flexible conduit and method of manufacture
US4106527A · kind A · utility
2Cited by
2References
3Claims
0Family size
Inventor
Key dates
| Filing date | Oct 10, 1974 |
| Grant date | Aug 15, 1978 |
| Priority date | — |
| Expiry date | Oct 10, 1994 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L11/12
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A heavy duty conduit is disclosed for services such as oxygen supply to lances and torches and includes plural metallic strands which are twisted together with a central channel therein to form a duct for the gaseous medium, an impervious sheath enclosing the duct, and a helical insert in the central flow channel of the duct to preclude inward shifting of the strands and consequent disturbance of the flow channel and to provide turbulent flow of the gaseous medium therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.