Percussion initiated inflator assembly

• US 4,899,663 A
• Filed: 02/15/1989
• Issued: 02/13/1990
• Est. Priority Date: 02/15/1989
• Status: Expired due to Term

• Current Assignee: Automotive Systems Laboratory, Incorporated (Ningbo Junsheng Investment Group Co., Ltd.)
• Original Assignee: Automotive Systems Laboratory, Incorporated (Ningbo Junsheng Investment Group Co., Ltd.)
• Inventors: Thorn, William F.
• Primary Examiner(s): TUDOR, HAROLD JAY
• Application Number:
  US07/310,858
• Time in Patent Office: 363 Days
• Field of Search: 102/204, 102/275.12, 102/275.6, 102/305, 102/311, 102/322, 102/530, 102/531, 102/702, 280/734, 280/735, 280/736, 280/741
• US Class Current: 102/530
• CPC Class Codes: B60R 2021/2648 comprising a plurality of combustion chambers or sub-chambers
• CPC Class Codes: B60R 21/2644 using only solid reacting substances, e.g. pellets, powder
• CPC Class Codes: F42B 3/04 for producing gas under pressure generators of inflation fluid especially adapted for vehicle air bags B60R21/26
• CPC Class Codes: Y10S 102/702 Compression ignition

Abstract

A percussion initiated inflator assembly for an airbag comprises a detonator panel that effects essentially simultaneous ignition of a plurality of gas generators by a shock wave.

Claims

1. A percussion initiated inflator assembly comprising

a housing,

an airbag forming a front wall of said housing,

a rigid detonator panel forming a rear wall of said housing,

a plurality of gas generating cartridge supported within said housing by said detonator panel,

a percussion initiated primer in each of said cartridges,

a diaphragm between the percussion primer of each of said cartridges and said detonator panel,

a single detonator supported internally of said detonator panel in spaced relation to said cartridges, and

an explosive trace disposed internally of said detonator panel and extending from said detonator to the diaphragm of each of said cartridges, respectively, for effective percussion ignition thereof.