Elevator roller guide and rail assembly
US7143871B2 · kind B2 · utility
7Cited by
23References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2003 |
| Grant date | Dec 5, 2006 |
| Priority date | — |
| Expiry date | Jul 5, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/104
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An elevator door assembly includes a rail and at least one roller that rolls along the rail to move a door between opened and closed positions, for example. A resilient track is provided on the rail that facilitates more efficient roller movement and increases the longevity of the assembly. In one example, the resilient track includes several pieces of flexible material that are snapped in place onto the rail. In another example, the flexible track is supported on the rail using a spray coating technique.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.