Transmission cross arm
US8652629B2 · kind B2 · utility
3Cited by
17References
20Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 31, 2010 |
| Grant date | Feb 18, 2014 |
| Priority date | — |
| Expiry date | May 19, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249946
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cross arm is provided, for use in a support structure for conductors within an electrical grid. The cross arm is made of weather resistant glass fiber reinforced two component polyurethane based polymers and has a “C” cross sectional shape typically arranged in a double configuration. Pairs of the cross arms are attached to utility poles in a parallel position on opposite sides of the utility pole to meet predefined design conditions. Alternatively, a single cross arm may be attached to a utility pole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.