Safety brake configuration for elevator application
US11124386B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2016 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Feb 6, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B11/0213
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An adjacent safety configuration for an elevator includes a second pair of safeties displaced from a first pair of safeties by at least 0.1 seconds of travel time at a rated speed of the elevator. An adjacent safety configuration for an elevator including a second pair of safeties displaced from the first pair of safeties to provide a predetermined time period before the second pair of safeties pass over a point on a guide rail previously passed over by the first pair of safeties to permit the guide rail surface to decrease by a predetermined temperature. A method of spacing an adjacent safety configuration for an elevator system including de-rating a pair of trailing safeties with respect to a pair of leading safeties as a function of a rated speed of the elevator and a spacing between the pair of trailing safeties and the pair of leading safeties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.