Compensation in an elevator system having multiple cars within a single hoistway
US8087497B2 · kind B2 · utility
7Cited by
21References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 29, 2004 |
| Grant date | Jan 3, 2012 |
| Priority date | — |
| Expiry date | Nov 22, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B9/00
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An elevator system (20) includes multiple elevator cars (22, 32) within a hoistway (28). A first compensation member (40) is associated with a first counterweight (24). A second compensation member (50) is associated with a second one of the elevator cars (32). Each compensation member has one end that moves with the associated elevator system component and an opposite end (44, 54) secured in a fixed position within the hoistway. In one example, a compensation member has a linear density that is approximately four times a linear density of a corresponding load bearing member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.