Igniter for gas generating material
AssigneeTRW Vehicle Safety Systems Inc.
InventorReiner Lenzen
Life of this patent
Estimating the term…
Abstract
An apparatus for igniting gas generating material includes a container having ignitable material for igniting the gas generating material upon ignition of the ignitable material. The ignitable material ignites when heated to a predetermined temperature. The ignitable material includes booster material and auto-ignition material which ignites when heated to the predetermined temperature. The ignitable material is a homogeneous mixture of the booster material and the auto-ignition material and has a ratio by weight of the booster material to the auto-ignition material of between 1.25 to 1 and 30 to 1. The booster material is a BKNO.sub.3 based compound and the auto-ignition material is a smokeless powder which ignites at a temperature in the range of 300.degree. F.-400.degree. F.
Claims19
An apparatus for igniting gas generating material, said apparatus comprising:
- a container;
- and
- an ignitable material located in said container for igniting the gas generating material upon ignition of said ignitable material, said ignitable material igniting when heated to a predetermined temperature,
- said ignitable material comprising a homogeneous mixture of auto-ignition material which ignites when heated to said predetermined temperature and booster material which ignites at a temperature greater than the temperature at which said auto-ignition material ignites.
An apparatus for igniting gas generating material, said apparatus comprising:
- a container;
- and
- an ignitable material located in said container for igniting the gas generating material upon ignition of said ignitable material, said ignitable material comprising a homogeneous mixture of:
- a boron and potassium nitrate based compound, and
- an auto-ignition material which ignites when heated to a temperature in the range of 300.degree. F. to 400.degree. F.
An apparatus for inflating an inflatable vehicle occupant restraint upon deceleration of the vehicle at a rate above a predetermined rate, said apparatus comprising:
- a housing containing gas generating material, said housing having mechanical properties which degrade when said housing is heated to a temperature about 650.degree. F.;
- and
- means for igniting the gas generating material in response to being heated to a predetermined temperature substantially lower than 650.degree. F. and in response to deceleration of the vehicle at a rate above the predetermined rate, said means comprising:
- a container supported by said housing adjacent the gas generating material;
- an ignitable material which is located in said container and which upon ignition ignites the gas generating material;
- and
- means for igniting the ignitable material in response to deceleration of the vehicle above the predetermined rate of deceleration;
- said ignitable material comprising a homogeneous mixture of a booster material and an auto-ignition material which ignites upon being heated to the predetermined temperature to ignite said booster material and to thereby ignite the gas generating material.
Dependencies are inferred from the claim text.