Cellular flooring system and method of using same
US4682456A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1986 |
| Grant date | Jul 28, 1987 |
| Priority date | — |
| Expiry date | Feb 18, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02G3/185
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An improved cellular flooring service distribution system is disclosed comprising a cellular flooring unit in which a dividing means provides a plurality of open parallel conduits in a single valley of a corrugated sheet, an overlying trench providing a plurality of transversely oriented parallel passageways which have access to said conduits and an isolating means to selectively isolate at least one conduit and passageway from the remaining conduits and passageways. Cover means and access housings are also provided. Since the above components do not require any special fabrication, they can be efficiently and cheaply mass produced, preferably from sheet metal. Service lines may be placed in open conduits and passageways prior to covering to eliminate the need for feeding the lines through enclosed cells. Since no base plate is required on the corrugated sheets, less material is used than with conventional units, the sheet can be compactly nested to facilitate shipping and handling and fire resistance is increased. Fire resistance is further increased by allowing concrete to flow beneath the trench into the undivided valleys of the sheet. Various embodiments of the general concept …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.