US5704402A
Expired / Lapsed
US
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Air bag fabric
Assignee: Milliken Research Corp
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Filing: 1996-04-01
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Granted: 1998-01-06
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Expires: 2016-04-01
Abstract
Abstract The woven structure for an air bag is designed to have an air permeability which does not increase by more than about fifty percent when the fabric is subjected to substantially equivalent tension forces in both the warp and fill. This is accomplished by a multiple warp harness arrangement using combinations of twill and basket weave pattern components. This weave construction does not only avoid substantial increases in permeability over a range of biaxial tensions but also may result in a permeability decrease when subjected to tensions which approximate those applicable during actual air bag deployment.
Inventors
- 👤 Derek L. Bowen
- 👤 Charles L. Bower
- 👤 John A. Sollars, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:46
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/16; B60R21/23; B60R21/235; D; D03; D03D; D03D1/00; D03D1/02; D03D15/00; D03D15/20; D03D15/283; B60R2021/23504; B60R2021/23509; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1362
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
120 words
An inflatable cushion for use in an occupant restraint system at least partially formed from uncoated woven textile fabric, wherein said textile fabric comprises a plurality of warp yarns disposed in a warp direction interwoven with a plurality of fill yarns disposed in a fill direction in a predetermined weave configuration such that the textile fabric has an air permeability which at no time increases by more than about fifty percent from that measured in a substantially untensioned state at a pressure drop of 124 Pascals (0.5 inches of water) across the fabric when the fabric is subjected to substantially equivalent tension forces in both the warp and the fill directions up to about 150 pounds force per linear inch.
Claim 2
Dependent Claim
120 words
An inflatable cushion for use in an occupant restraint system at least partially formed from uncoated woven textile fabric, wherein said textile fabric comprises a plurality of warp yarns disposed in a warp direction interwoven with a plurality of fill yarns disposed in a fill direction in a predetermined weave configuration such that the textile fabric has an air permeability which at no time increases by more than about fifty percent from that measured in a substantially untensioned state at a pressure drop of 124 Pascals (0.5 inches of water) across the fabric when the fabric is subjected to substantially equivalent tension forces in both the warp and the fill directions up to about 150 pounds force per linear inch.
Claim 3
Dependent Claim
19 words
The invention according to claim 1, wherein said textile fabric is woven according to a four pick repeat pattern.
Claim 4
Dependent Claim
20 words
The invention according to claim 2, wherein said textile fabric is formed from nylon warp yarns and nylon fill yarns.
Claim 5
Dependent Claim
25 words
The invention according to claim 2, wherein said warp yarns and said fill yarns each have a denier of between about 300 and about 840.
Claim 6
Dependent Claim
20 words
The invention according to claim 4, wherein said warp yarns are of substantially the same denier as said fill yarns.
Claim 7
Dependent Claim
19 words
The invention according to claim 1, wherein said textile fabric is woven according to a six pick repeat pattern.
Claim 8
Dependent Claim
20 words
The invention according to claim 6, wherein said textile fabric is formed from nylon warp yarns and nylon fill yarns.
Claim 9
Dependent Claim
25 words
The invention according to claim 6, wherein said warp yarns and said fill yarns each have a denier of between about 300 and about 840.
Claim 10
Dependent Claim
20 words
The invention according to claim 8, wherein said warp yarns are of substantially the same denier as said fill yarns.
Claim 11
Dependent Claim
110 words
An uncoated woven textile fabric for use in an inflatable cushion in an occupant restraint system, comprising: a plurality of warp yarns disposed in a warp direction interwoven with a plurality of fill yarns disposed in a fill direction in a predetermined weave configuration such that said textile fabric has an air permeability which at no time increases by more than about fifty percent from that measured in a substantially untensioned state at a pressure drop of 124 Pascals (0.5 inches of water) across the fabric when subjected to substantially equivalent tension forces in both the warp and the fill directions up to about 150 pounds force per liner inch.
Claim 12
Dependent Claim
110 words
An uncoated woven textile fabric for use in an inflatable cushion in an occupant restraint system, comprising: a plurality of warp yarns disposed in a warp direction interwoven with a plurality of fill yarns disposed in a fill direction in a predetermined weave configuration such that said textile fabric has an air permeability which at no time increases by more than about fifty percent from that measured in a substantially untensioned state at a pressure drop of 124 Pascals (0.5 inches of water) across the fabric when subjected to substantially equivalent tension forces in both the warp and the fill directions up to about 150 pounds force per liner inch.
Claim 13
Dependent Claim
19 words
The invention according to claim 10, wherein said textile fabric is woven according to a four pick repeat pattern.
Claim 14
Dependent Claim
20 words
The invention according to claim 11, wherein said textile fabric is formed from nylon warp yarns and nylon fill yarns.
Claim 15
Dependent Claim
25 words
The invention according to claim 11, wherein said warp yarns and said fill yarns each have a denier of between about 300 and about 840.
Claim 16
Dependent Claim
20 words
The invention according to claim 13 wherein said warp yarns are of substantially the same denier as said fill yarns.
Claim 17
Dependent Claim
19 words
The invention according to claim 10, wherein said textile fabric is woven according to a six pick repeat pattern.
Claim 18
Dependent Claim
20 words
The invention according to claim 15, wherein said textile fabric is formed from nylon warp yarns and nylon fill yarns.
Claim 19
Dependent Claim
25 words
The invention according to claim 15, wherein said warp yarns and said fill yarns each have a denier of between about 300 and about 840.
Claim 20
Dependent Claim
20 words
The invention according to claim 17, wherein said warp yarns are of substantially the same denier as said fill yarns.
Claim 21
Dependent Claim
55 words
The invention according to claim 10, wherein said fabric has an initial air permeability of not more than about five standard cubic feet of air per minute per square foot of fabric at a pressure drop of 124 Pascals (0.5 inches of water) across the fabric when the fabric is in a substantially untensioned state.
Claim 22
Dependent Claim
25 words
The invention as in claim 19, wherein said warp yarns and said fill yarns each have a denier of between about 300 and about 840.
Claim 23
Dependent Claim
20 words
The invention as in claim 20, wherein said warp yarns are of substantially the same denier as said fill yarns.
Claim 24
Dependent Claim
59 words
The invention as in claim 10, wherein said fabric has an air permeability which at no time increases by more than about twenty percent at a pressure drop of 124 Pascals (0.5 inches of water) when subjected to substantially equivalent tension forces in both the warp and the fill directions up to about 150 pounds force per linear inch.
Claim 25
Dependent Claim
25 words
The invention as in claim 22, wherein said warp yarns and said fill yarns each have a denier of between about 300 and about 840.
Claim 26
Dependent Claim
20 words
The invention as in claim 23, wherein said warp yarns are of substantially the same denier as said fill yarns.
Claim 27
Dependent Claim
55 words
The invention as in claim 22, wherein said fabric has an initial air permeability of not more than about three standard cubic feet of air per minute per square foot of fabric at a pressure drop of 124 Pascals (0.5 inches of water) across the fabric when the fabric is in a substantially untensioned state.
Claim 28
Dependent Claim
25 words
The invention as in claim 25, wherein said warp yarns and said fill yarns each have a denier of between about 300 and about 840.
Claim 29
Dependent Claim
20 words
The invention as in claim 26, wherein said warp yarns are of substantially the same denier as said fill yarns.
Claim 30
Dependent Claim
140 words
An uncoated woven textile fabric, comprising: a plurality of warp yarns disposed in a warp direction interwoven with a plurality of fill yarns disposed in a fill direction in a predetermined weave configuration such that said textile fabric has a measured air permeability which is not more than about three standard cubic feet of air per minute per square foot of fabric at a pressure drop of 124 Pascals (0.5 inches of water) across the fabric when the fabric is in a substantially untensioned state and said air permeability at no time increases by more than about fifty percent as measured at a pressure drop of 124 Pascals across the fabric when the fabric is subjected to substantially equivalent tension forces in both the warp and the fill directions up to about 150 pounds force per linear inch of fabric.
Claim 31
Dependent Claim
140 words
An uncoated woven textile fabric, comprising: a plurality of warp yarns disposed in a warp direction interwoven with a plurality of fill yarns disposed in a fill direction in a predetermined weave configuration such that said textile fabric has a measured air permeability which is not more than about three standard cubic feet of air per minute per square foot of fabric at a pressure drop of 124 Pascals (0.5 inches of water) across the fabric when the fabric is in a substantially untensioned state and said air permeability at no time increases by more than about fifty percent as measured at a pressure drop of 124 Pascals across the fabric when the fabric is subjected to substantially equivalent tension forces in both the warp and the fill directions up to about 150 pounds force per linear inch of fabric.
Claim 32
Dependent Claim
19 words
The invention according to claim 28, wherein said textile fabric is woven according to a four pick repeat pattern.
Claim 33
Dependent Claim
25 words
The invention according to claim 29, wherein said warp yarns and said fill yarns each have a denier of between about 300 and about 840.
Claim 34
Dependent Claim
104 words
An uncoated, woven textile fabric having a controlled air permeability, the fabric comprising: a plurality of warp yarns disposed in a warp direction interwoven with a plurality of fill yarns disposed in a fill direction in a predetermined weave configuration such that said fabric has an air permeability which decreases by about twenty percent or more from that measured in a substantially untensioned state at a pressure drop of three pounds force per square inch across said fabric when said fabric is subjected to substantially equivalent tension forces of about eighty pounds force per linear inch in both the warp and the fill directions.
Claim 35
Dependent Claim
104 words
An uncoated, woven textile fabric having a controlled air permeability, the fabric comprising: a plurality of warp yarns disposed in a warp direction interwoven with a plurality of fill yarns disposed in a fill direction in a predetermined weave configuration such that said fabric has an air permeability which decreases by about twenty percent or more from that measured in a substantially untensioned state at a pressure drop of three pounds force per square inch across said fabric when said fabric is subjected to substantially equivalent tension forces of about eighty pounds force per linear inch in both the warp and the fill directions.
Claim 36
Dependent Claim
25 words
The invention as in claim 31 wherein said warp yarns and said fill yarns each have a linear density of about 100 denier or less.
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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) | 2001-01-05 | 2001-07-07 | 2002-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-01-05 | 2005-07-07 | 2006-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-01-05 | 2009-07-07 | 2010-01-06 | $7700.00 | Window Closed / Lapsed |