Elevator door roller and track replacement
US11623846B2 · kind B2 · utility
0Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2020 |
| Grant date | Apr 11, 2023 |
| Priority date | — |
| Expiry date | Jul 30, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B19/007
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An elevator door subsystem including a hanger mount, a leveling cam, an engaging member, and a roller assembly, configured such that when the roller assembly is positioned on one side of the elevator door hanger, the hanger mount is positioned within an opening of the elevator door hanger, and the leveling cam is positioned on another side of the elevator door hanger, the engaging member is receivable by the roller assembly after the engaging member is passed through an opening in the leveling cam, an opening in the hanger mount, and the opening in the door hanger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.