Preset insert housing for underfloor raceways
US6072121A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1998 |
| Grant date | Jun 6, 2000 |
| Priority date | — |
| Expiry date | Dec 14, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02G3/283
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A preset is provided for providing access at selected locations to an underfloor electrical distribution system of the type consisting of at least one raceway panel adapted to be positioned in a concrete floor. The raceway panel defines an interior passage adapted to carry service cables and has an exterior wall defining a preset opening that provides access to the interior passage. The presets can be located at any location where an opening is punched in the raceway panel, with 12 inch or 24 inch intervals being mostcommon. The preset includes a housing having an interior compartment, a concrete cap, and a knockout section. The concrete cap and the knockout section can be removed to provide access to the interior compartment of the preset housing. The knockout is positioned to align with and lockingly engage with the preset opening to secure the preset to the raceway panel during pouring of the concrete floor. Upon hardening of the concrete floor, the concrete above the preset can be broken away to permit removal of the concrete cap. The knockout can then be removed to provide access to the interior passage of the raceway panel through the preset. Alignment clips are provided for …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.