US5988677A
Expired / Lapsed
US
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Airbag module
Assignee: Petri AG
•
Filing: 1995-09-15
•
Granted: 1999-11-23
•
Expires: 2015-09-15
Abstract
Abstract An airbag module with a gas generator, a blow diffuser, and a gas bag has at least one blow diffuser extending into a fold of the folded gas bag. The blow diffuser extends as far as the region of the gas bag cover and the folded gas bag is fitted essentially beside the blow diffuser and is arranged around it. With this airbag module, the gas bag is drawn from the housing and not pushed in the usual manner.
Inventors
- 👤 Heinz-Dieter Adomeit
- 👤 Harald Jahnke
- 👤 Eleonore Braun
- 👤 Thomas Marotzke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:25
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/16; B60R21/20; B60R21/217; B60R21/2171; B60R21/205; B60R21/26; B60R21/261
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
70 words
An airbag module comprising: a gas generator a gas bag comprising a plurality of folds, each of the folds having a first layer, and a second layer substantially parallel to the first layer and adjoining the first layer at a single bend; and an inflation diffuser having a plurality of inflation openings and positioned between the first layer and the second layer of one fold of the plurality of folds.
Claim 2
Dependent Claim
70 words
An airbag module comprising: a gas generator a gas bag comprising a plurality of folds, each of the folds having a first layer, and a second layer substantially parallel to the first layer and adjoining the first layer at a single bend; and an inflation diffuser having a plurality of inflation openings and positioned between the first layer and the second layer of one fold of the plurality of folds.
Claim 3
Dependent Claim
15 words
The airbag module according to claim 1 wherein the gas bag contains the gas generator.
Claim 4
Dependent Claim
29 words
The airbag module according to claim 1 further comprising a cover and wherein the inflation diffuser is adjacent to the cover and to the folds of the gas bag.
Claim 5
Dependent Claim
25 words
The airbag module according to claim 3 wherein the inflation diffuser comprises at least one of the plurality of the inflation openings proximate the cover.
Claim 6
Dependent Claim
28 words
The airbag module according to claim 1 wherein the fold in which the inflation diffuser is positioned is located at substantially a center of the plurality of folds.
Claim 7
Dependent Claim
27 words
The airbag module according claim 1 wherein the fold in which the inflation diffuser is positioned is spaced away from a center of the plurality of folds.
Claim 8
Dependent Claim
24 words
The airbag module according to claim 6 wherein the inflation diffuser is positioned in a fold at an end of the plurality of folds.
Claim 9
Dependent Claim
23 words
The airbag module according to claim 1 wherein a side of the inflation diffuser comprises a plurality of the plurality of inflation openings.
Claim 10
Dependent Claim
35 words
The airbag module according to claim 1 wherein the fold in which the diffuser is positioned has a predetermined shape and wherein the diffuser has a shape substantially adapted to the shape of the fold.
Claim 11
Dependent Claim
17 words
The airbag module according to claim 1 wherein a cross section of the inflation diffuser is finger-shaped.
Claim 12
Dependent Claim
17 words
The airbag module according to claim 1 wherein a cross section of the inflation diffuser is cup-shaped.
Claim 13
Dependent Claim
15 words
The airbag module according to claim 1 wherein the inflation diffuser comprises a wire mesh.
Claim 14
Dependent Claim
20 words
The airbag module according to claim 1 wherein the inflation diffuser comprises an internal sheet of a metal filter fabric.
Claim 15
Dependent Claim
43 words
The airbag module according to claim 1 further comprising a housing having a partition, wherein the housing contains the gas generator, the gas bag and the inflation diffuser, and wherein the partition separates the gas generator and the folds of the gas bag.
Claim 16
Dependent Claim
82 words
The airbag module according to claim 14 wherein the partition comprises grooves, wherein the inflation diffuser comprises edges positioned in said grooves, and wherein the gas bag comprises an inflation port having edges interposed between the inflation diffuser edges and the partition grooves whereby a thrust of gas from the gas generator pushes the edges of the inflation diffuser against the partition grooves, thereby clamping the edges of the gas bag inflation port between the inflation diffuser edges and the partition grooves.
Claim 17
Dependent Claim
30 words
The airbag module according to claim 15 wherein the edges of the inflation port of the gas bag extends between clamping surfaces of an external housing and an internal housing.
Claim 18
Dependent Claim
81 words
The airbag module according to claim 15 further comprising a plurality of annular segments attached to the partition, wherein the edge of the inflation diffuser is positioned between the partition and the annular segments, wherein the edge of the inflation port is disposed between the edge of the inflation diffuser and the annular segments, and wherein the annular segments, the edge of the inflation diffuser, and the edge of the inflation port of the gas bag are connected to each other.
Claim 19
Dependent Claim
38 words
The airbag module according to claim 14 wherein the housing comprises two portions connected by hinges, whereby the housing may be swung open on the hinges to install the gas generator, the gas bag and the inflation diffuser.
Claim 20
Dependent Claim
20 words
The airbag module according to claim 1 wherein the folds of the gas bag are contained by a tension band.
Claim 21
Dependent Claim
19 words
The airbag module according to claim 1 wherein the folds of the gas bag are contained by a film.
Claim 22
Dependent Claim
16 words
The airbag module according to claim 1 wherein the inflation diffuser has a substantially cylindrical shape.
Claim 23
Dependent Claim
143 words
An airbag module comprising: a gas generator; a gas bag comprising a plurality of folds; and an inflation diffuser having a plurality of inflation openings and positioned in one fold of the plurality of folds; a housing having a partition, wherein the housing contains the gas generator, the gas bag and the inflation diffuser, and wherein the partition separates the gas generator and folds of the gas bag wherein the partition comprises grooves and the inflation diffuser comprises edges positioned in said grooves, and wherein the gas bag comprises an inflation port having edges interposed between the inflation diffuser edges and the partition grooves whereby a thrust of gas from the gas generator pushes the edges of the inflation diffuser against the partition grooves, thereby clamping the edges of the gas bag inflation port between the inflation diffuser edges and the partition grooves.
Claim 24
Dependent Claim
143 words
An airbag module comprising: a gas generator; a gas bag comprising a plurality of folds; and an inflation diffuser having a plurality of inflation openings and positioned in one fold of the plurality of folds; a housing having a partition, wherein the housing contains the gas generator, the gas bag and the inflation diffuser, and wherein the partition separates the gas generator and folds of the gas bag wherein the partition comprises grooves and the inflation diffuser comprises edges positioned in said grooves, and wherein the gas bag comprises an inflation port having edges interposed between the inflation diffuser edges and the partition grooves whereby a thrust of gas from the gas generator pushes the edges of the inflation diffuser against the partition grooves, thereby clamping the edges of the gas bag inflation port between the inflation diffuser edges and the partition grooves.
Claim 25
Dependent Claim
30 words
The airbag module according to claim 22 wherein the edges of the inflation port of the gas bag extends between clamping surfaces of an external housing and an internal housing.
Claim 26
Dependent Claim
81 words
The airbag module according to claim 22 further comprising a plurality of annular segments attached to the partition, wherein the edge of the inflation diffuser is positioned between the partition and the annular segments, wherein the edge of the inflation port is disposed between the edge of the inflation diffuser and the annular segments, and wherein the annular segments, the edge of the inflation diffuser, and the edge of the inflation port of the gas bag are connected to each other.
Claim 27
Dependent Claim
99 words
An airbag module comprising: a gas generator; a gas bag comprising a plurality of folds; and an inflation diffuser having a plurality of inflation openings and positioned in one fold of the plurality of folds; a housing having a partition, wherein the housing contains the gas generator, the gas bag and the inflation diffuser, and wherein the partition separates the gas generator and folds of the gas bag wherein the housing comprises two portions connected by hinges, whereby the housing may be swung open on the hinges to install the gas generator, the gas bag and the inflation diffuser.
Claim 28
Dependent Claim
99 words
An airbag module comprising: a gas generator; a gas bag comprising a plurality of folds; and an inflation diffuser having a plurality of inflation openings and positioned in one fold of the plurality of folds; a housing having a partition, wherein the housing contains the gas generator, the gas bag and the inflation diffuser, and wherein the partition separates the gas generator and folds of the gas bag wherein the housing comprises two portions connected by hinges, whereby the housing may be swung open on the hinges to install the gas generator, the gas bag and the inflation diffuser.
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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) | 2002-11-22 | 2003-05-24 | 2003-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-11-22 | 2007-05-24 | 2007-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-11-22 | 2011-05-24 | 2011-11-23 | $7700.00 | Window Closed / Lapsed |