Self-propelled elevator system having windings proportional to car velocity
US10280041B2 · kind B2 · utility
0Cited by
13References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 27, 2013 |
| Grant date | May 7, 2019 |
| Priority date | — |
| Expiry date | Oct 31, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K41/031
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An elevator system includes a hoistway and an elevator car to travel in the hoistway. Permanent magnets are mounted to the elevator car and primary windings are mounted in the hoistway to form a linear motor. The primary windings having a first section having a first number of turns and a second section having a second number of turns. The first number of turns is less than the second number of turns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.