Tubular linear motor driven elevator
US5300737A · kind A · utility
9Cited by
6References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 24, 1992 |
| Grant date | Apr 5, 1994 |
| Priority date | — |
| Expiry date | Mar 24, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B11/0407
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A linear motor driven elevator comprises: a cab capable of upward and downward movement; a linear motor comprising a movable element and a stationary element; a counterweight attached to the movable element such that the movable element is disposed thereon out of register with the center of gravity of the counterweight; and a rope connecting the cab and the counterweight at the center of gravity of the counterweight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.