US6473948B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air bag fabric possessing improved packed volume characteristics
Assignee: Milliken and Co
•
Filing: 1997-04-17
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Granted: 2002-11-05
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Expires: 2017-04-17
Abstract
Abstract A fabric for use in an air bag is provided. The fabric of the invention is produced by mechanically compressing a preliminary fabric constructed substantially of synthetic yarn such that the packed volume per unit area of the compressed fabric is less than the packed volume per unit area of the preliminary fabric. Air permeability is not adversely affected.
Inventors
- 👤 Ramesh Keshavaraj
- 👤 Michael D. Hurst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:29
CPC Classifications
B; B65; B65B; B65B53/00; B60; B60R; B60R21/00; B60R21/02; B60R21/16; B60R21/23; B60R21/235; B60R21/237; B60R2021/2375; D; D06; D06C; D06C21/00; Y; Y10; Y10T; Y10T442/00; Y10T442/30
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
108 words
A method of producing an airbag fabric comprising the steps of: (a) providing a preliminary woven fabric constructed substantially of synthetic yams wherein the preliminary woven fabric has a reference packed volume per unit area; and (b) mechanically forcing together the yams of the preliminary woven fabric to yield a compressed woven fabric having a mass per unit area at least 4 percent greater than the mass per unit area of the preliminary woven fabric wherein the resulting packed volume per unit area of the compressed woven fabric is less than said reference packed volume per unit area of the preliminary woven fabric under substantially equivalent measurement conditions.
Claim 2
Independent Claim
108 words
A method of producing an airbag fabric comprising the steps of: (a) providing a preliminary woven fabric constructed substantially of synthetic yams wherein the preliminary woven fabric has a reference packed volume per unit area; and (b) mechanically forcing together the yams of the preliminary woven fabric to yield a compressed woven fabric having a mass per unit area at least 4 percent greater than the mass per unit area of the preliminary woven fabric wherein the resulting packed volume per unit area of the compressed woven fabric is less than said reference packed volume per unit area of the preliminary woven fabric under substantially equivalent measurement conditions.
Claim 3
Dependent Claim
18 words
The invention as set forth in claim 1 , wherein said preliminary woven fabric is a loom-state fabric.
Claim 4
Dependent Claim
29 words
The invention as in claim 1 , wherein the dynamic air permeability of the compressed woven fabric is lower than the dynamic air permeability of the preliminary woven fabric.
Claim 5
Dependent Claim
33 words
The invention as in claim 1 , wherein the dynamic air permeability of the compressed woven fabric is not greater than about 1600 mm/sec. at an average instantaneous different pressure of 50 KPa.
Claim 6
Dependent Claim
41 words
The invention as in claim 1 , wherein step (b), the packed volume per unit area of the compressed woven fabric is at least about 8 percent less than the reference packed volume per unit area of the preliminary woven fabric.
References Cited (Backward Citations)
US2078904A
Cited
US3131118A
Cited
US3596333A
Cited
US3538563A
Cited
US3814141A
Cited
US4051215A
Cited
US4932107A
Cited
US4921735A
Cited
US4969243A
Cited
US5010663A
Cited
US5073418B1
Cited
US5073418A
Cited
US5093163A
Cited
US5581856A
Cited
US5236775A
Cited
US5011183A
Cited
US5259645A
Cited
US5508073A
Cited
US5110666A
Cited
US5356680A
Cited
US5296278A
Cited
US5375878A
Cited
US5277230A
Cited
US5477890A
Cited
US5540965A
Cited
US5503197A
Cited
US5421378A
Cited
US5566434A
Cited
US5989660A
Cited
US6182709B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-11-04 | 2006-05-06 | 2006-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-11-04 | 2010-05-06 | 2010-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-11-04 | 2014-05-06 | 2014-11-05 | $7700.00 | Window Closed / Lapsed |