Handle assembly for escape hatch
US12428870B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2023 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Apr 15, 2044 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05F1/1091
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A handle assembly for an escape hatch. A handle assembly for an escape hatch comprises an interior handle and an exterior handle. The interior handle has an interior cam associated therewith and the exterior handle has an exterior cam associated therewith. The interior cam and the exterior cam each have a concave profile surface and a curved profile surface. A middle cam is sandwiched between the interior cam and the exterior cam and has a notched profile. The interior and exterior cams are associated with a tumbler having a flag. The middle cam is associated with an output rod operatively coupled to a second flag. Each of the interior handle and the exterior handle can be successively rotated in a first arc of rotation and a second arc of rotation with one hand. The first and second arcs of rotation are respectively associated with the flag and the second flag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.