Safety door assembly
US12234675B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2023 |
| Grant date | Feb 25, 2025 |
| Priority date | — |
| Expiry date | Jan 6, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/72
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A safety door assembly for a hoist window of a structure includes a sliding door arranged to reveal or conceal the hoist window; and a barrier assembly which is closed to inhibit access to an area in front of the hoist window or opened to permit access to the area in front of the hoist window; and wherein the barrier assembly is adapted to prevent the sliding door from revealing the hoist window when the barrier assembly is open; and the sliding door is adapted to prevent opening of the closed barrier assembly when the sliding door reveals the hoist window.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.