Multi-chamber airbag with pinch valve
US9272684B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2014 |
| Grant date | Mar 1, 2016 |
| Priority date | — |
| Expiry date | Oct 10, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/23308
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An airbag can include a first cushion portion that defines a first inflatable chamber and a second cushion portion that defines a second inflatable chamber. An inflator generates inflation gas to inflate the inflatable chambers. The first inflatable chamber is in fluid communication with the inflator to receive inflation gas to expand the first cushion portion. The second inflatable chamber is in fluid communication with a fill tube or other conduit, which is in fluid communication with the inflator to receive inflation gas to expand the second cushion portion. The fill tube is configured to be disposed between a portion of the first cushion portion and a portion of a vehicle, such that expansion of the first cushion portion as the first inflatable chamber inflates causes the fill tube to be closed. The fill tube is pinched closed against the vehicle portion by expansion of the first cushion portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.