Systems and methods for controlling duct pressurization for cable installation
US7562861B2 · kind B2 · utility
12Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2005 |
| Grant date | Jul 21, 2009 |
| Priority date | — |
| Expiry date | Apr 1, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/52
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system includes a duct, a pressurized fluid source, and a valve. The duct receives one or more cables and the pressurized fluid source couples to a first end of the duct and produces fluid pressure within the duct. The valve couples to a second end of the duct and is closed for a time to build pressure within the duct, and then opened to permit the fluid under pressure within the duct to escape rapidly from the duct and propel the one or more cables through the duct.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.