Elevator system using minimal building space
US6619433B1 · kind B1 · utility
9Cited by
20References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2000 |
| Grant date | Sep 16, 2003 |
| Priority date | — |
| Expiry date | Jul 24, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B11/0045
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An elevator system includes a hoistway having a vertically adjacent structural platform, i.e., a roof slab or pit slab, that includes a recess, and a machine that fits within the recess. The vertically adjacent structural platform defines either the ceiling or floor of the hoistway. As a result of having the machine tucked into the recess in the hoistway, the machine is removed from the hoistway and the hoistway need not be expanded, either horizontally or vertically, to accommodate the machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.