Electromagnetically operated protection mechanism, system, and method
US11220859B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Dec 17, 2019 |
| Grant date | Jan 11, 2022 |
| Priority date | — |
| Expiry date | Feb 23, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2009/805
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A room protection mechanism for protecting access through a window or doorway includes a flexible barrier sheet adjustable between a collapsed, storage configuration, and a deployed configuration. The protection mechanism includes a housing storing the flexible barrier sheet in the collapsed configuration. Sheet magnetic elements are attached to the flexible barrier sheet, and structured to magnetically couple to frame magnetic elements mounted to a frame of the doorway or window. The protection mechanism can be deployed, such as in a school or other institutional setting, to position the flexible barrier sheet to block access through the doorway or window. The flexible barrier sheet may be formed of or include a ballistic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.