Tube comprising composite layers with different modulii of elasticity
US5499661A · kind A · utility
48Cited by
7References
36Claims
0Family size
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Key dates
| Filing date | May 11, 1995 |
| Grant date | Mar 19, 1996 |
| Priority date | — |
| Expiry date | May 11, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L11/083
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A composite material tube, withstanding the internal pressure, and comprising at least two layers of pressure reinforcement fibers, or pressure resistant layers, wound at an angle at least equal in absolute value to 70.degree., with respect to the center axis of the tube. The two layers both undergo radial expansion under an effect of the pressure, with one of these two layers being inside the other. A circumferential modulus of elasticity of the external layer is greater than the circumferential modulus of elasticity of the internal layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.