Tensioning device for at least one trailing rope of an elevator installation
US6431321B1 · kind B1 · utility
10Cited by
4References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2001 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Mar 28, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B7/10
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A trailing rope tensioning device for an elevator installation includes at least one damper having at least one piston slidably received in a cylinder. The piston divides the cylinder into two chambers filled with a working fluid and connected together by a throttled connecting line as well as a channel fitted with a non-return valve. Attached to the piston is a fixed piston rod extending through the cylinder and emerging from ends of the cylinder. This arrangement requires no externally active container for damping.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.