Elevator trench drain
US11674320B2 · kind B2 · utility
0Cited by
58References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2021 |
| Grant date | Jun 13, 2023 |
| Priority date | — |
| Expiry date | Apr 12, 2041 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04F17/005
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A trench drain includes a trench, a grating seat and a grating hingedly connected to the trench. The trench has a base wall with peripheral side walls extending upwardly therefrom and an outwardly-extending peripheral flange. The grating seat is configured to receive the grating. The peripheral side walls of the trench have a pair of opposing elongated slots formed therein and the grating has a pair of posts on opposing ends thereof. Each of the pair of posts on the grating are received in a respective one of the pair of opposing elongated slots of the trench to establish an axis of rotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.