Glass fiber reinforced cement liners for pipelines and casings
US5649568A · kind A · utility
10Cited by
23References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 1995 |
| Grant date | Jul 22, 1997 |
| Priority date | — |
| Expiry date | Mar 9, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S138/06
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Conduits having cement-containing liners for the inner and outer surfaces of metal pipes include a fibrous material, such as glass fibers, to prevent cracking and/or inhibit crack propagation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.