Jolt-free elevator power transition
US10144615B2 · kind B2 · utility
1Cited by
16References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 23, 2015 |
| Grant date | Dec 4, 2018 |
| Priority date | — |
| Expiry date | Mar 23, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B5/024
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Embodiments are directed to a converter configured to supply power to a motor of an elevator, a first power source coupled to the converter and configured to provide input power to the converter, and a second power source selectively coupled to the converter and configured to provide input power to the converter when power from the first power source is unavailable and when an elevator car of the elevator is moving, wherein a speed of the elevator car remains substantially constant when a transition in terms of the input power to the converter is made from the first power source to the second power source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.