Elevator car frame
US11091352B2 · kind B2 · utility
3Cited by
10References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2019 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Nov 26, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B11/0206
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Elevator car frames are provided. The elevator car frames include a first upright, a second upright, a first support element connected to the first upright, a second support element connected to the second upright, and a retractable crosshead having a first portion and a second portion extending between the first and second support elements, wherein the retractable crosshead is operable between a first state wherein the first portion and the second portion are connected and a second state wherein the first portion and the second portion are separated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.