Micro gas generator including an initiator blast shield
US7407184B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2004 |
| Grant date | Aug 5, 2008 |
| Priority date | — |
| Expiry date | Feb 6, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2022/4647
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A micro gas generator 10 is provided primarily for supplying and directing gas from the combustion of pyrotechnic materials into a seatbelt pretensioner 26, for example. A perforated housing 12 of gas generator 10 provides a body for containment of the other gas generant constituents, and forms a propellant chamber 14. A propellant or gas generant 16 is contained within chamber 14 and provides combustion thereof. An annular bore 20 is centrally oriented within the bore seal 18 thereby providing a seat for an associated initiator 22. An initiator blast shield 36 is encased about the initiator 22 thereby attenuating or mitigating the force and progression of the combustion of an ignition compound (not shown) within the initiator 22.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.