Noise reduction device
US9243685B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2008 |
| Grant date | Jan 26, 2016 |
| Priority date | — |
| Expiry date | Nov 29, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05F15/684
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention relates to a noise reduction device. More particularly, the present invention relates to a device that is suitable for use with a drive chain, for reducing noise and vibration resulting from the chain contacting its surrounding environment (rattle noise). The present invention has particular but not exclusive application in reducing noise in chains installed as part of powered door assemblies. In one form, the invention provides a noise reduction device suitable for use with a chain comprising a plurality of connected links, the device adapted for attachment to a link, such that when attached, the member is fixed to and movable with the link and presents one or more surfaces to an environment surrounding the chain, the or each surface provided with damping means to reduce noise associated with the chain contacting the surrounding environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.