Elevator safety device
US9975733B2 · kind B2 · utility
5Cited by
30References
12Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jan 26, 2015 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | May 13, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B5/18
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
One or more hydraulically-powered braking assemblies mounted on the cross-rail or safety plank of a traction-type or hydraulic-type elevator car, and designed to selectively brake on a guide rail of the elevator car upon detection of a safety condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.