Double deck elevator
US7287624B2 · kind B2 · utility
1Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2003 |
| Grant date | Oct 30, 2007 |
| Priority date | — |
| Expiry date | Jul 17, 2023 |
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 hositway, 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 quietness and comfortableness in the cages is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.