Escalator or moving walkway
US6834753B2 · kind B2 · utility
0Cited by
5References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 31, 2002 |
| Grant date | Dec 28, 2004 |
| Priority date | — |
| Expiry date | May 31, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B23/00
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
For reduction in externally excited oscillations there is provided at an escalator or a moving walkway an oscillation damper which is connected with the escalator or the moving walkway within a self-supporting region, preferably at the point of greatest oscillation displacement. The oscillation damper is preferably a speed-proportional plate damper comprising plates which move relative to one another in viscous oil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.