Land vehicles – Wheeled – Attachment
Reexamination Certificate
2006-04-18
2006-04-18
Culbreth, Eric (Department: 3616)
Land vehicles
Wheeled
Attachment
C280S732000
Reexamination Certificate
active
07029028
ABSTRACT:
An arrangement for forming an opening in an auto interior trim panel or piece normally having no visible indication of the opening just prior to inflation of an inflatable air bag, allowing deployment of the air bag into the passenger compartment of vehicle, the arrangement including a linear element positioned below the skin of the trim panel or wheel cover in a pattern corresponding to the opening. In a first embodiment a heat generating element is employed as the linear element which when activated degrades the covering skin layer of the trim piece in pattern shape. In a second embodiment detonating cord enclosed in a metal tube is employed with a series of holes directing the energy of detonation to sever the panel skin material. In a third embodiment a split sleeve having explosive coating on the inside is used to create a flame front severing the panel skin in the appropriate pattern. The skin may be mechanically preweakened prior to assembly by a precision cutting operation performed on the inside surface, in a pattern matching with the pattern of the linear element, aiding the process of foxing the opening in the trim piece at the instant of deployment.
REFERENCES:
patent: 4991870 (1991-02-01), Beusterien et al.
patent: 58-38131 (1983-03-01), None
patent: 1-81157 (1989-05-01), None
patent: 1-122753 (1989-05-01), None
Benefiel John R.
Culbreth Eric
Tip Engineering Group, Inc
LandOfFree
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