Patent US4868037A successfully refreshed from Google Patents.
US4868037A
Expired / Lapsed
US
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Insulated articles containing non-linear carbonaceous fibers
Assignee: Dow Chemical Co
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Filing: 1987-10-14
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Granted: 1989-09-19
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Expires: 2007-10-14
Abstract
Abstract An improved washable insulating article comprising a batting of resilient, elongatable, non-flammable non-linear carbonaceous fibers, said fibers having a reversible deflection ratio of greater than 1.2:1, an aspect ratio greater than 10:1 and an LOI value greater than 40 and the articles of apparel derived therefrom.
Inventors
- 👤 Francis P. McCullough, Jr.
- 👤 R. Vernon Snelgrove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:44
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/42; D04H1/4209; D04H1/4242; D04H1/4282; D04H1/4291; D04H1/43; D04H1/4391; D04H1/43918; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249922; Y10T428/29; Y10T428/2913; Y10T428/2918; Y10T428/2922; Y10T428/2925; Y10T428/30; Y10T442/00; Y10T442/60; Y10T442/608; Y10T442/627; Y10T442/63; Y10T442/635; Y10T442/69
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
64 words
In an article for insulating a party against the weather and/or temperature, the improvement which comprises said article having a washable non-flammable insulation comprising a batting, felt or web of resilient shape reforming elongatable non-linear non-flammable carbonaceous fibers, said fibers having a reversible deflection ratio of greater than 1.2:1, an aspect ratio greater than 10:1 and a limited oxygen index value greater than 40.
Claim 2
Dependent Claim
64 words
In an article for insulating a party against the weather and/or temperature, the improvement which comprises said article having a washable non-flammable insulation comprising a batting, felt or web of resilient shape reforming elongatable non-linear non-flammable carbonaceous fibers, said fibers having a reversible deflection ratio of greater than 1.2:1, an aspect ratio greater than 10:1 and a limited oxygen index value greater than 40.
Claim 3
Dependent Claim
12 words
The article of claim 1 wherein said fibers have a sinusoidal configuration.
Claim 4
Dependent Claim
12 words
The article of claim 1 wherein said fibers have a coil-like configuration.
Claim 5
Dependent Claim
12 words
The article of claim 1 wherein said fibers are non-electrically conductive fibers.
Claim 6
Dependent Claim
12 words
The article of claim 4 wherein said fibers possess no anti-static characteristics.
Claim 7
Dependent Claim
20 words
The article of claim 5 wherein said insulation has a bulk density of less than about 0.15 lb/ft 3 .
Claim 8
Dependent Claim
11 words
The article of claim 1 wherein said fibers are electrically conductive.
Claim 9
Dependent Claim
16 words
The article of claim 1 wherein said fibers have a carbon content of less than 85%.
Claim 10
Dependent Claim
11 words
The article of claim 1, wherein said fibers contain a binder.
Claim 11
Dependent Claim
16 words
The article of claim 1 wherein said fibers have a carbon content of at least 85%.
Claim 12
Dependent Claim
30 words
The article of claim 1 wherein said fibers are derived from stabilized acrylic fibers and said carbonaceous fibers have a percent nitrogen content of from about 18 to about 18.8%.
Claim 13
Dependent Claim
18 words
The article of claim 11 wherein said carbonaceous fibers have a nitrogen content of about 20 to 25%.
Claim 14
Dependent Claim
71 words
In an article of clothing for insulating a party against the weather and/or temperature the improvement which comprises said article having a non flammable washable insulation comprising a batting, felt or web of resilient shape reforming elongatable non-linear non-flammable carbonaceous fibers, said fibers having a reversible deflection ratio of greater than 1.2:1, an aspect ratio greater than 10:1 and a limited oxygen index value greater than 40 and are non-electrically conductive.
Claim 15
Dependent Claim
71 words
In an article of clothing for insulating a party against the weather and/or temperature the improvement which comprises said article having a non flammable washable insulation comprising a batting, felt or web of resilient shape reforming elongatable non-linear non-flammable carbonaceous fibers, said fibers having a reversible deflection ratio of greater than 1.2:1, an aspect ratio greater than 10:1 and a limited oxygen index value greater than 40 and are non-electrically conductive.
Claim 16
Dependent Claim
20 words
The article of claim 13, wherein said insulation has a bulk density of less than about 0.15 lb/ft 3 .
Claim 17
Dependent Claim
13 words
The article of claim 13, wherein said fibers are derived from stabilized polyacrylonitrile.
Claim 18
Dependent Claim
12 words
The article of claim 13 wherein said batting comprises coil-like carbonaceous fibers.
Claim 19
Dependent Claim
12 words
The article of claim 13 wherein said insulation comprises sinusoidal carbonaceous fibers.
Claim 20
Dependent Claim
72 words
In an article of clothing for insulating a party against the weather and/or temperature the improvement which comprises said article having a washable insulation comprising batting, felt or web of resilient shape reforming elongatable non-linear nonflammable carbonaceous fibers, said fibers having a reversible deflection ratio of greater than 1.2:1, an aspect ratio greater than 10:1 and a limited oxygen index value greater than 40 and a carbon content of less than 85%.
Claim 21
Dependent Claim
72 words
In an article of clothing for insulating a party against the weather and/or temperature the improvement which comprises said article having a washable insulation comprising batting, felt or web of resilient shape reforming elongatable non-linear nonflammable carbonaceous fibers, said fibers having a reversible deflection ratio of greater than 1.2:1, an aspect ratio greater than 10:1 and a limited oxygen index value greater than 40 and a carbon content of less than 85%.
Claim 22
Dependent Claim
13 words
The article of claim 18 wherein said fibers are derived from stabilized polyacrylonitrile.
Claim 23
Dependent Claim
11 words
The article of claim 19 wherein said insulation contains a binder.
Claim 24
Dependent Claim
12 words
The article of claim 18 wherein said insulation comprises coil-like carbonaceous fibers.
Claim 25
Dependent Claim
12 words
The article of claim 18 wherein said insulation comprises sinusoidal carbonaceous fibers.
Claim 26
Dependent Claim
73 words
In an article of clothing for insulating a party against weather and/or temperature the improvement which comprises said article having an insulation comprising a batting, felt or web of resilient electrically conductive shape reforming elongatable non-linear non-flammable carbonaceous fibers, said fibers having a reversible deflection ratio of greater than 1.2:1, an aspect ratio greater than 10:1 and a limited oxygen index value greater than 40 and a carbon content of less than 85%.
Claim 27
Dependent Claim
73 words
In an article of clothing for insulating a party against weather and/or temperature the improvement which comprises said article having an insulation comprising a batting, felt or web of resilient electrically conductive shape reforming elongatable non-linear non-flammable carbonaceous fibers, said fibers having a reversible deflection ratio of greater than 1.2:1, an aspect ratio greater than 10:1 and a limited oxygen index value greater than 40 and a carbon content of less than 85%.
Claim 28
Dependent Claim
12 words
The article of claim 23 wherein said insulation comprises coil-like carbonaceous fibers.
Claim 29
Dependent Claim
12 words
The article of claim 23 wherein said insulation comprises sinusoidal carbonaceous fibers.
Claim 30
Dependent Claim
20 words
The article of claim 23 wherein said insulation has a bulk density of less than about 32 kg/m 3 .
Claim 31
Dependent Claim
54 words
In an insulated jacket, the improvement comprising said insulation being composed of a batting, felt or web of resilient shape reforming elongatable non-linear non-flammable carbonaceous fibers, said fibers having a reversible deflection ratio of greater than 1.2:1, an aspect ratio of greater than 10:1 and a limited oxygen index value of greater than 40.
Claim 32
Dependent Claim
54 words
In an insulated jacket, the improvement comprising said insulation being composed of a batting, felt or web of resilient shape reforming elongatable non-linear non-flammable carbonaceous fibers, said fibers having a reversible deflection ratio of greater than 1.2:1, an aspect ratio of greater than 10:1 and a limited oxygen index value of greater than 40.
Claim 33
Dependent Claim
58 words
In a sleeping bag or blanket having insulation, the improvement comprising said insulation being composed of a batting, felt or web of resilient shape reforming elongatable non-linear non-flammable carbonaceous fibers, said fibers having a reversible deflection ratio of greater than 1.2:1, an aspect ratio of greater than 10:1 and a limited oxygen index value of greater than 40.
Claim 34
Dependent Claim
58 words
In a sleeping bag or blanket having insulation, the improvement comprising said insulation being composed of a batting, felt or web of resilient shape reforming elongatable non-linear non-flammable carbonaceous fibers, said fibers having a reversible deflection ratio of greater than 1.2:1, an aspect ratio of greater than 10:1 and a limited oxygen index value of greater than 40.
Claim 35
Dependent Claim
56 words
In an insulated pair of pants, the improvement comprising said insulation being composed of a batting, felt or web of resilient shape reforming elongatable non-linear non-flammable carbonaceous fibers, said fibers having a reversible deflection ratio of greater than 1.2:1, an aspect ratio of greater than 10:1 and a limited oxygen index value of greater than 40.
Claim 36
Dependent Claim
56 words
In an insulated pair of pants, the improvement comprising said insulation being composed of a batting, felt or web of resilient shape reforming elongatable non-linear non-flammable carbonaceous fibers, said fibers having a reversible deflection ratio of greater than 1.2:1, an aspect ratio of greater than 10:1 and a limited oxygen index value of greater than 40.
Claim 37
Dependent Claim
57 words
In an insulating glove, mitten or boot the improvement comprising said insulation being composed of a batting, felt or web of resilient shape reforming elongatable non-linear non-flammable carbonaceous fibers, said fibers having a reversible deflection ratio of greater than 1.2:1, an aspect ratio of greater than 10:1 and a limited oxygen index value of greater than 40.
Claim 38
Dependent Claim
57 words
In an insulating glove, mitten or boot the improvement comprising said insulation being composed of a batting, felt or web of resilient shape reforming elongatable non-linear non-flammable carbonaceous fibers, said fibers having a reversible deflection ratio of greater than 1.2:1, an aspect ratio of greater than 10:1 and a limited oxygen index value of greater than 40.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-09-18 | 1993-03-20 | 1993-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-18 | 1997-03-20 | 1997-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-18 | 2001-03-20 | 2001-09-19 | $7700.00 | Window Closed / Lapsed |