Pressure equalization in composite pipes
US12313190B2 · kind B2 · utility
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10References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 18, 2020 |
| Grant date | May 27, 2025 |
| Priority date | — |
| Expiry date | Oct 7, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L11/10
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A flexible polymeric pipe for transportation of oil, gas or water, having an unbonded reinforcing intermediate layer between two polymeric layers. The pipe has a vent for the intermediate layer which allows venting of gas from the intermediate layer through to the exterior environment. The vent is generally impervious to water but pervious to air and gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.