Drain channel
US9834894B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Feb 5, 2016 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Feb 5, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03F5/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drainage installation (20), for a warehouse and/or factory floor that has a surface level (26), has a drainage channel (24) recessed into the floor and a plurality of sections of flat grating (22) seated inside the drainage channel (24). The drainage channel (24) has an axially-elongated, square-U shaped channel portion which is flanked by horizontal shoulders (30), which then transition into vertically-depending skirt portions (32). The horizontal shoulders (30) as well as the sections of flat grating (22) are arranged to be more less planar with the surface level (26). Wherein, the skirt portions (32) are formed with a series of apertures (36) which either allow the injection of wet cement underneath the shoulder portions (30) of the drainage channel (24), or alternately the venting of the wet cement when the cavity under the shoulder portions (30) are over-filled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.