Pulsed pressure source particularly adapted for vehicle occupant air bag restraint systems
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United States of America Patent
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Jun 14, 1994
Issued Date -
N/A
app pub date -
Nov 8, 1991
filing date -
May 31, 1991
priority date (Note) -
Expired
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Abstract
An occupant passive restraint system for an automotive vehicle comprises an air bag and a pulsed pressure source in fluid flow relation with the air bag. The pulsed pressure source includes plural pulsed pressure sources sequentially energized in response to the deceleration sensor sensing a single crash impact. Each source includes plural chambers holding progressively larger masses of gas generant. The chambers are arranged so that each has an outlet coupled with the chamber having the next largest gas generant mass. The gas generant mass in each chamber is predominantly a non-explosive solid particulate material. The smallest chamber includes a fuse in contact with the generant. When a crash is sensed the fuse is supplied with a pulse having sufficient energy and duration to rupture the fuse and form a plasma discharge in the generant in the smallest chamber. The plasma discharge has sufficient energy to ignite the generant in the smallest chamber to a vapor. Gas from each chamber sequentially flows into the chamber having the next largest gas generant mass to sequentially activate the generant mass in the next largest chamber. A temperature sensor controls energization of the pressure pulse to control when each pulse is derived and/or how many pulses are derived.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- GENERAL DYNAMICS LAND SYSTEMS, INC.
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Goldstein, Yeshayahu Shyke A | Gaithersburg, MD | 4 | 153 |
Widner, Melvin | Rochester Hills, MI | 2 | 128 |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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