US5482315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Large L/D ratio tubular hybrid gas generator for the inflation of air bags
Assignee: Autoliv ASP Inc
•
Filing: 1994-06-07
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Granted: 1996-01-09
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Expires: 2014-06-07
Abstract
Abstract An elongated tubular hybrid gas generator for the inflation of air bags in which the ratio of length to diameter is at least ten. The device may be substituted for a structural element in a motor vehicle, e.g. a steering column or a beam in a door panel with consequent savings in weight and size.
Inventors
- 👤 William A. Chandler, Jr.
- 👤 Leland B. Kort
- 👤 Randall J. Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:05
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/16; B60R21/20; B60R21/203; B60R21/2032; B60R21/207; B60R21/26; B60R21/268; B60R21/272; B60R2021/0002; B60R2021/0006; B60R2021/26064
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
139 words
An inflator dimensioned to serve as a structural element in a vehicle comprising: an elongated hollow cylinder having an inner wall within which there are disposed the following components: a first diaphragm welded to the inner wall of said cylinder spaced from one end of said cylinder, so as to define a cup shaped cavity at said end of said cylinder, a pyrotechnic charge and an igniter positioned in said cavity, a second diaphragm secured to the inner walls of said cylinder near the other end of said cylinder, a screen at said other end of said cylinder so as to define a diffuser chamber in said cylinder, a storage chamber in said elongated cylinder consisting of the volume between said diaphragms for storing a gas under pressure, all of said components being contained inside said elongated hollow cylinder.
Claim 2
Dependent Claim
139 words
An inflator dimensioned to serve as a structural element in a vehicle comprising: an elongated hollow cylinder having an inner wall within which there are disposed the following components: a first diaphragm welded to the inner wall of said cylinder spaced from one end of said cylinder, so as to define a cup shaped cavity at said end of said cylinder, a pyrotechnic charge and an igniter positioned in said cavity, a second diaphragm secured to the inner walls of said cylinder near the other end of said cylinder, a screen at said other end of said cylinder so as to define a diffuser chamber in said cylinder, a storage chamber in said elongated cylinder consisting of the volume between said diaphragms for storing a gas under pressure, all of said components being contained inside said elongated hollow cylinder.
Claim 3
Dependent Claim
21 words
The inflation system according to Claim 1 wherein the tubular structure has a length to diameter ratio greater than about 10.
Claim 4
Dependent Claim
15 words
The inflation system according to Claim 1, installed as a structural element in a vehicle.
Claim 5
Dependent Claim
12 words
A steering column for a vehicle comprising the inflator of Claim 1.
Claim 6
Dependent Claim
16 words
The inflation system according to Claim 1 installed within a hollow steering column in a vehicle.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-01-08 | 1999-07-10 | 2000-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-01-08 | 2003-07-10 | 2004-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-01-08 | 2007-07-10 | 2008-01-09 | $7700.00 | Window Closed / Lapsed |