Vertically movable door with safety barrier
US7775252B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2006 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | Mar 15, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4973
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A vertically moving door of a truck loading dock includes a disconnectable horizontal joint that provides the door with a barrier position, wherein an upper section of the door can be separated from a lower section to create a ventilation area between the two. The ventilation area allows fresh outside air to enter the building, while the lower section remains at its lowermost position for safety and security. More specifically, the lower section serves as a barrier that helps prevent someone or something from accidentally falling through the doorway when a truck is not present at the dock. A lightweight, resilient strap can be attached to the lower section of the door to help protect that section from an otherwise damaging impact. A lattice of straps or a mesh can be installed across the ventilation area to help secure the building against theft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.