Economical heavy concrete weight coating for submarine pipelines
US9322491B2 · kind B2 · utility
6Cited by
15References
20Claims
0Family size
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Key dates
| Filing date | Feb 7, 2014 |
| Grant date | Apr 26, 2016 |
| Priority date | — |
| Expiry date | Oct 24, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49885
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Economical heavy concrete weight coating is used as a weight coating for submarine pipes. The developed economical heavy concrete weight includes steel slag and iron ore as aggregate. Steel slag can contain iron and thus have a higher density than some other types of slag. By supplementing the steel slag with iron ore as aggregate, the economical heavy concrete weight coating can have a higher density than a coating having just slag. Economical heavy concrete weight coating can have a density greater than 190 pcf.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.