Elevator hoist apparatus
US5018603A · kind A · utility
40Cited by
4References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 24, 1989 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | Aug 24, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B11/0438
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A hoist apparatus comprising a stationary shaft supported by a support, and a sheave having a cavity with a side opening detachably, and rotatably, mounted on the shaft. A motor stator assembly is mounted on the support member and extends into the inner space through the side opening, and a motor rotor assembly is disposed within the inner space in an electromagnetically inductive relationship with the motor stator assembly. The motor rotor assembly is detachably connected to the sheave by a connecting assembly including a bolt fastening the motor rotor assembly to the sheave.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.