Communication bellows between cars of a rail vehicle
US8166889B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 23, 2009 |
| Grant date | May 1, 2012 |
| Priority date | — |
| Expiry date | Mar 4, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61D17/22
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present invention provides a communication bellows including at least one external skin which has a succession of inwardly directed undulations and at least one internal skin which has a succession of outwardly directed undulations which are provided facing the inwardly directed undulations of the external skin, the two skins together delimiting an acoustic insulation space, the internal skin being connected to at least some of the inwardly directed undulations of the external skin, the external skin and internal skin being connected to each other only by some mutually facing undulations, other undulations of the two skins remaining separate from each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.