Damper apparatus
US6922869B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2002 |
| Grant date | Aug 2, 2005 |
| Priority date | — |
| Expiry date | Feb 23, 2023 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2201/266
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A damper apparatus is disclosed for damping movement between a first and a second element. The apparatus includes an elongate housing secured to the first element, the housing having a first and a second end. The housing defines a bore which extends between the ends of the housing. A rotor is connected to the second element, the rotor including a first and a second portion. The first portion of the rotor is rotatably disposed within the bore of the housing. A biasing device has a first and a second termination, the biasing device extending between the second portion of the rotor and the housing for rotationally biasing the rotor relative to the housing. A seal is disposed between the first and second portions of the rotor. The seal cooperates with the bore for sealing the bore relative to the second portion of the rotor such that in use of the apparatus, damping fluid sealed within the bore by the seal dampens rotational movement of the rotor relative to the bore when the rotor is rotationally biased. The arrangement is such that movement between the first and second elements is dampened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.