Airbag having a pressure responsive vent
US8573641B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2012 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Jul 31, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/2395
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An airbag has a fabric enclosure, a vent in the fabric enclosure, and a flow control device made up of a flexible membrane fastened around part of a periphery thereof to the fabric enclosure adjacent to the vent. The membrane defines a flow passage having a free end through which inflation gas is vented to atmosphere and has a tongue extending away from the free end. The tongue has a pre-deployment position in which it overlies an inner surface of the fabric enclosure and a distal end of the tongue extends past an end of the vent closest to the free end. A first distance from the distal end of the tongue to a closest end of the vent may be shorter than a second distance from the distal end of the tongue to a closest end of fastening between the periphery of the membrane and the fabric enclosure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.