Expandable platform
US8141683B1 · kind B1 · utility
14Cited by
13References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2010 |
| Grant date | Mar 27, 2012 |
| Priority date | — |
| Expiry date | Oct 9, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04G2001/157
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An expandable platform for use within an elevator hoistway is provided. The expandable platform includes a plurality of corner members slidably connected to a plurality of side members. The corner members and the side members form an adjustable frame assembly. A plurality of extension members is connected to opposing side members. The extension members are configured to support a plurality of support surfaces. A depth and a width of the adjustable frame assembly can be adjusted to fit elevator hoistways having various depths and widths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.