Land vehicles – Wheeled – Attachment
Patent
1994-05-16
1995-05-16
Hill, Mitchell J.
Land vehicles
Wheeled
Attachment
280737, 2807281, B60R 2128
Patent
active
054154294
ABSTRACT:
A self-contained vehicle safety system is provided which can be easily installed in an automotive vehicle at occupant seating positions lacking airbag protection. Each system employs a canister containing a collapsed airbag and a compressed gas cylinder. A septum isolates the reservoir from the bag and from an air filled pneumatic line with a puncturing element that is located adjacent the septum. The pneumatic line leads to an actuator housing that preferably contains at least one linear, cylindrical passageway in which a piston is mounted for reciprocal movement. A biasing spring normally holds the piston at a position in the cylindrical cavity remote from a pressure transmission port coupled to the pneumatic line. However, in the event of a collision the inertial mass of the piston overcomes the spring and travels along the cylindrical cavity passage in the actuator housing. This compresses air within the actuator housing and expels the compressed air through the pressure transmission port and into the pneumatic line. The air pressure in the pneumatic line is directed to the piercing element, which punctures the reservoir septum, thereby releasing compressed air which immediately inflates the airbag.
REFERENCES:
patent: 4765569 (1988-08-01), Higgins
patent: 5145208 (1992-09-01), Hoagland et al.
patent: 5213362 (1993-05-01), Coutlas
Ellis Christopher P.
Hill Mitchell J.
Thomas Charles H.
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