Device for tightening a seat belt in a motor vehicle

Details Device for tightening a seat belt in a motor vehicle Device for tightening a seat belt in a motor vehicle

1997-10-07

2000-07-18

Rice, Kenneth R.

Land vehicles

Wheeled

Attachment

B60R 2236

Patent

active

060896051

ABSTRACT:
A drive device includes a piston guided linearly in at least one pressure tube. The drive for the piston includes a plurality of pyrotechnic drive cartridges ignitable in succession, and is especially useful for tightening a seat belt in a motor vehicle. The linear movement of the piston, urged as a result of an initial ignition, triggers subsequent ignitions for driving the piston. The drive cartridges are ignited in succession.

REFERENCES:
patent: 5364129 (1994-11-01), Collins et al.
patent: 5480190 (1996-01-01), Fohl
patent: 5588677 (1996-12-01), Kopetzky et al.
patent: 5681004 (1997-10-01), Specht

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