Elevator system actuator including a resetting element made from shape memory alloy
US10023430B2 · kind B2 · utility
2Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2014 |
| Grant date | Jul 17, 2018 |
| Priority date | — |
| Expiry date | Mar 3, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF03G7/06143
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An actuator for an elevator system, which actuator can adopt an activated state and a released state, has a restoring element. The actuator is brought from the released state into the activated state by the restoring element. The restoring element is made of a shape memory alloy. At a first temperature, the restoring element adopts a first length, and a second length at a second temperature. After the actuator has been released, the restoring element changes from the first length into the second length, and back into the first length. In this way, the restoring element returns the actuator to the activated state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.