Double deck elevator
US6615952B2 · kind B2 · utility
7Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2001 |
| Grant date | Sep 9, 2003 |
| Priority date | — |
| Expiry date | Mar 1, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B11/0226
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A double deck elevator comprising an upper cage and a lower cage vertically movable together in a hoistway, wherein a space between the upper cage and the lower cage is covered by covers. The covers guide airflow flowing around the space to reduce air turbulence noise, and consequently the ride in the cages becomes quieter and more comfortable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.