Hybrid inflator with elongated housing and center discharge
US5533751A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 1995 |
| Grant date | Jul 9, 1996 |
| Priority date | — |
| Expiry date | Apr 17, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R21/272
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A hybrid inflator for an inflatable restraint system has a center frame and two tubular end caps forming an elongated housing defining a chamber storing pressurized inert gas. Unit means for heating and delivering the stored gas are mounted in the center frame and positioned to deliver inflation gasses centrally with respect to the elongated housing. In a two unit embodiment, one unit includes a squib and a pyrotechnic gas generant, and the other unit defines an outlet orifice and baffle plate. In another two unit embodiment, the second unit includes an essentially non gas-producing heating composition which, when activated, heats and expands the pressurized gas. In a third embodiment, a unit includes heating material and ignition means and defines the outlet orifice. The center manifold is extruded metal stock with two opposing flat surfaces adapted to mount one or more units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.