US4996102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite non-woven fabric material
Assignee: Osaka Gas Co Ltd
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Filing: 1989-06-27
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Granted: 1991-02-26
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Expires: 2009-06-27
Abstract
Abstract The present invention provides a composite non-woven fiber material comprising at least one stainless steel fiber layer and at least one carbon fiber layer, the alternating stainless steel fiber layers and carbon fiber layers being intimately interlocked to form integrated composite material, at least one exposed surface layer of the composite material being a stainless steel fiber layer.
Inventors
- 👤 Hirofumi Kyutoku
- 👤 Hiroyuki Matsuoka
- 👤 Yoshihisa Otani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:33
CPC Classifications
B; B01; B01D; B01D39/00; B01D39/14; B01D39/20; B01D39/2027; B01D39/2041; B01D39/2055; B01D39/2065; D; D04; D04H; D04H1/00; D04H1/40; D04H1/42; D04H1/4209; D04H1/4234; D04H1/4242; D04H1/4374; B01D2239/00; B01D2239/06; B01D2239/065; B01D2239/0659; B01D2239/0681; B01D2239/10; B01D2239/12; B01D2239/1291; Y; Y10; Y10T; Y10T428/00; Y10T428/30; Y10T442/00; Y10T442/60; Y10T442/608; Y10T442/659; Y10T442/666; Y10T442/667; Y10T442/668
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
61 words
A composite non-woven fiber material comprising at least one stainless steel fiber layer and at least one carbon fiber layer, said at least one stainless steel fiber layer and said at least one carbon fiber layer being alternately intimately interlocked to form integrated composite material, at least one surface layer of said integrated composite material being a stainless steel fiber layer.
Claim 2
Dependent Claim
61 words
A composite non-woven fiber material comprising at least one stainless steel fiber layer and at least one carbon fiber layer, said at least one stainless steel fiber layer and said at least one carbon fiber layer being alternately intimately interlocked to form integrated composite material, at least one surface layer of said integrated composite material being a stainless steel fiber layer.
Claim 3
Dependent Claim
31 words
A composite non-woven fiber material according to claim 1 wherein the ratio of weight per area of a carbon fiber layer is from about 30 to about 2500 g/m 2 .
Claim 4
Dependent Claim
22 words
A composite non-woven fiber material according to claim 2 wherein said ratio is from about 50 to about 2300 g/m 2 .
Claim 5
Dependent Claim
32 words
A composite non-woven fiber material according to claim 1 wherein the ratio of weight per area of a stainless steel fiber layer is from about 50 to about 2500 g/m 2 .
Claim 6
Dependent Claim
21 words
A composite non-woven material according to claim 4 wherein said ratio is from about 120 to about 2000 g/m 2 .
Claim 7
Dependent Claim
29 words
A composite non-woven fiber material according to claim 1 wherein the diameter of a filament forming a stainless steel fiber layer is from about 2 to about 50 μm.
Claim 8
Dependent Claim
29 words
A composite non-woven fiber material according to claim 1 wherein the alternate layers of stainless steel fibers and carbon fibers are needle-punched together to form said integrated composite material.
Claim 9
Dependent Claim
75 words
In an annealing furnace, the improvement comprising at least one sealing element of a composite non-woven fiber material comprising at least one stainless steel fiber layer and at least one carbon fiber layer, said at least one stainless steel fiber layer and said at least one carbon fiber layer being alternately intimately interlocked to form an integrated composite material, at least one surface layer of said integrated composite material being a stainless steel fiber layer.
Claim 10
Dependent Claim
75 words
In an annealing furnace, the improvement comprising at least one sealing element of a composite non-woven fiber material comprising at least one stainless steel fiber layer and at least one carbon fiber layer, said at least one stainless steel fiber layer and said at least one carbon fiber layer being alternately intimately interlocked to form an integrated composite material, at least one surface layer of said integrated composite material being a stainless steel fiber layer.
Claim 11
Dependent Claim
29 words
The sealing element according to claim 8 wherein the ratio of weight per area of a carbon fiber layer is from about 30 to about 2500 g/m 2 .
Claim 12
Dependent Claim
20 words
The sealing element according to claim 9 wherein said ratio is from about 50 to about 2300 g/m 2 .
Claim 13
Dependent Claim
30 words
The sealing element according to claim 8 wherein the ratio of weight per area of a stainless steel fiber layer is from about 50 to about 2500 g/m 2 .
Claim 14
Dependent Claim
20 words
The sealing element according to claim 11 wherein said ratio is from about 120 to about 2000 g/m 2 .
Claim 15
Dependent Claim
27 words
The sealing element according to claim 8 wherein the diameter of a filament forming a stainless steel fiber layer is from about 2 to about 50 μm.
Claim 16
Dependent Claim
29 words
A composite non-woven fiber material according to claim 8 wherein the alternate layers of stainless steel fibers and carbon fibers are needle-punched together to from said integrated composite material.
Claim 17
Dependent Claim
82 words
In a high temperature cushion useful in glass processing, the improvement comprising at least one high temperature cushioning element of a composite non-woven fiber material comprising at least one stainless steel fiber layer and at least one carbon fiber layer, said at least one stainless steel fiber layer and said at least one carbon fiber layer being alternately intimately interlocked to form an integrated composite material, at least one surface layer of said integrated composite material being a stainless steel fiber layer.
Claim 18
Dependent Claim
82 words
In a high temperature cushion useful in glass processing, the improvement comprising at least one high temperature cushioning element of a composite non-woven fiber material comprising at least one stainless steel fiber layer and at least one carbon fiber layer, said at least one stainless steel fiber layer and said at least one carbon fiber layer being alternately intimately interlocked to form an integrated composite material, at least one surface layer of said integrated composite material being a stainless steel fiber layer.
Claim 19
Dependent Claim
31 words
The high temperature cushioning element according to claim 15 wherein the ratio of weight per area of a carbon fiber layer is from about 30 to about 2500 g/m 2 .
Claim 20
Dependent Claim
22 words
The high temperature cushioning element according to claim 16 wherein said ratio is from about 50 to about 2300 g/m 2 .
Claim 21
Dependent Claim
32 words
The high temperature cushioning element according to claim 15 wherein the ratio of weight per area of a stainless steel fiber layer is from about 50 to about 2500 g/m 2 .
Claim 22
Dependent Claim
22 words
The high temperature cushioning element according to claim 18 wherein said ratio is from about 120 to about 2000 g/m 2 .
Claim 23
Dependent Claim
29 words
The high temperature cushioning element according to claim 15 wherein the diameter of a filament forming a stainless steel fiber layer is from about 2 to about 50 μm.
Claim 24
Dependent Claim
29 words
The high temperature cushioning element according to claim 15 wherein the alternate layers of stainless steel fibers and carbon fibers are needle-punched together to from said integrated composite material.
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) | 1994-02-25 | 1994-08-27 | 1995-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-25 | 1998-08-27 | 1999-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-25 | 2002-08-27 | 2003-02-26 | $7700.00 | Window Closed / Lapsed |