Retractable cable tray for vertical structures
US9151412B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2013 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Jun 12, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02G3/263
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a cable tray assembly for a drilling rig or other vertical structure. In one embodiment, an extendable cable tray assembly is provided for retractable attachment to a section of a mast of a drilling rig. The cable tray assembly includes an upper tray connected to the mast in a stationary relationship. A center tray has a pivot end pivotally connected to the mast, and an articulating end rotatable between a stowed position and a deployed position below, and offset to, the upper tray. A lower tray has an upper end and a lower end. The upper end is pivotally connected to the articulating end of the center tray. The lower tray is movable between a stowed position and a deployed position below, and offset to, the center tray. An actuator is provided such that extension and retraction of the actuator results in deployment and retraction of the cable tray assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.