Elevator linear motor bus bar
US5090516A · kind A · utility
12Cited by
12References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 1991 |
| Grant date | Feb 25, 1992 |
| Priority date | — |
| Expiry date | Mar 15, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K41/025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An elevator is driven by a linear motor having a flat secondary element comprised of a plurality of segments which extend the length of an elevator rise. The segments of the secondary element are connected by a bus bar which overlaps joints between each adjacent segment by enclosing an end portion of each segment. The bus bar, conducts current across the joints, provides a surface for guide rollers which maintain an air gap between the secondary element and a primary element, and minimizes relative motion between adjacent segments of the secondary element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.