Stair assembly with rise adjustable step support brackets
US11085191B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2019 |
| Grant date | Aug 10, 2021 |
| Priority date | — |
| Expiry date | Oct 7, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04F2011/0209
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A stair stringer includes a pair of joists each including an upper wall, a first lateral wall extending from the upper wall, and a second lateral wall extending from the upper wall. At least one stair step support bracket includes a tray support wall, a first side wall extending from the tray support wall, a second side wall extending from the tray support wall, and a front wall extending between the first side wall and the second side wall. The at least one stair step support bracket is configured to set on the upper wall of one of the pair of joists and the first side wall extending downward beyond the upper wall of the one joist in position to receive a first fastener through the first side wall and into the first lateral wall of the one joist, and the second side wall extending downward beyond the upper wall of the one joist in position to receive a second fastener through the second side wall and into the second lateral wall of the one joist, wherein the tray support wall is level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.