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US 2002/0117070 A1Published application
Pyrotechnic initiator with ignition bridge
AssigneeHirtenberger Automotive Safety GmbH
InventorsRobert Hatzl, Kurt Aigner
Life of this patent
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Abstract
A pyrotechnic initiator, for example, for inflatable safety air bags of automotive vehicles can include an electrically energizable initiator bridge and a reactive layer on the initiator bridge for liberation of energy upon electrical energization of the bridge. The reactive layer can consist of a combustible metal or a metal capable of liberating energy by alloying with a metal of the bridge.
Claims16
A pyrotechnic initiator comprising:
- an electrically energizable initiator bridge;
- and
- a reactive layer on said initiator bridge for liberation of energy upon electrical energization of said bridge, said reactive layer being comprised of a combustible metal or a metal capable of liberating energy by alloying with a metal of said bridge.
A method of making a pyrotechnic initiator, comprising the steps of:
- applying to an electrically energizable initiator bridge composed of at least one metal a reactive layer for liberation of energy upon electrical energization of said bridge, said reactive layer being comprised of a combustible metal or a metal capable of liberating energy by alloying with a metal of said bridge;
- and
- forming the metal of the reactive layer by dispersing a metal of the reactive layer in a resin, printing the resin containing the dispersed metal of the reactive layer onto the bridge, drying the printed resin and sintering the metal of said reactive layer, thereby bonding the metal of the reactive layer to said bridge.
Dependencies are inferred from the claim text.