US4725485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Textile structure for reinforced composite material
Assignee: Shikishima Boseki KK
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Filing: 1985-09-13
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Granted: 1988-02-16
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Expires: 2005-09-13
Abstract
Abstract A textile or filamentary structure for a reinforced composite material comprising a first filament (1) which is disposed in multiple turns or convolutions in a first plane (X-Y) without forming a cut, free or exposed end at each turn and then disposed as a subsequent lamination in another parallel filament-disposition plane in which it extends in a path different from the path of filament disposition in said first plane, whereafter it repeats the lamination in successive planes, a second filament (2) sinuously extending in planes (Y-Z) which intersect the planes of disposition of the first filament, without forming a cut, free or exposed end at each turn, and a third filament (3) sinuously extending in successive parallel planes (X-Y) adjacent the laminations of said first filament (1), passing through loops (5) formed by said second filament (2), thereby retaining the same in the body of the structure.
Inventors
- 👤 Tetsuro Hirokawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:17
CPC Classifications
D; D03; D03D; D03D25/00; D03D25/005; Y; Y10; Y10S; Y10S139/00; Y10S139/01; Y10T; Y10T442/00; Y10T442/30; Y10T442/3049; Y10T442/3179; Y10T442/3195
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
157 words
A textile or filamentary structure for a reinforced composite material comprising a filament 1 which is disposed in a first filament-disposition plane in multiple turns or convolutions without forming a cut, free or exposed end at any turn and is disposed in a second filament-disposition plane parallel to and above or below the first filament-disposition plane, the path of the filament in the first filament-disposition plane being different from the path of the filament 1 in said second filament-disposition plane, whereafter the filament is disposed in additional first and second filament-disposition planes; a filament 2 extending sinuously between the paths of the filament 1 in said first and second filament-disposition planes to form successive planes which intersect said first and second filament-disposition planes, without forming a cut, free or exposed end at any turn; and a filament 3 sinuously extending through loops formed by said filament 2, thereby retaining the same in the body of the structure.
Claim 2
Dependent Claim
157 words
A textile or filamentary structure for a reinforced composite material comprising a filament 1 which is disposed in a first filament-disposition plane in multiple turns or convolutions without forming a cut, free or exposed end at any turn and is disposed in a second filament-disposition plane parallel to and above or below the first filament-disposition plane, the path of the filament in the first filament-disposition plane being different from the path of the filament 1 in said second filament-disposition plane, whereafter the filament is disposed in additional first and second filament-disposition planes; a filament 2 extending sinuously between the paths of the filament 1 in said first and second filament-disposition planes to form successive planes which intersect said first and second filament-disposition planes, without forming a cut, free or exposed end at any turn; and a filament 3 sinuously extending through loops formed by said filament 2, thereby retaining the same in the body of the structure.
Claim 3
Dependent Claim
15 words
The filamentary reinforcement of claim 1, the filamentary material of which is an inorganic fiber.
Claim 4
Dependent Claim
29 words
The filamentary reinforcement of claim 2, wherein the inorganic fiber is selected from the group consisting of glass fiber, carbon fiber, graphite fiber, silicon carbide fiber and alumina fiber.
Claim 5
Dependent Claim
13 words
The filamentary reinforcement of claim 2, wherein the inorganic fiber is carbon fiber.
Claim 6
Dependent Claim
15 words
The filamentary reinforcement of claim 1, the filamentary material of which is a synthetic fiber.
Claim 7
Dependent Claim
22 words
The filamentary reinforcement of claim 5, wherein the synthetic fiber is selected from the group consisting of polyester, aliphatic and aromatic compounds.
Claim 8
Dependent Claim
14 words
The filamentary reinforcement of claim 5, wherein the synthetic fiber is an aromatic polyamide.
Claim 9
Dependent Claim
14 words
The filamentary reinforcement of claim 2, which has been impregnated with a thermosetting resin.
Claim 10
Dependent Claim
14 words
The filamentary reinforcement of claim 3 which has been impregnated with a thermosetting resin.
Claim 11
Dependent Claim
14 words
The filamentary reinforcement of claim 4, which has been impregnated with a thermosetting resin.
Claim 12
Dependent Claim
17 words
The filamentary reinforcement of claim 2, which has been impregnated with a thermosetting resin containing carbon powder.
Claim 13
Dependent Claim
17 words
The filamentary reinforcement of claim 3, which has been impregnated with a thermosetting resin containing carbon powder.
Claim 14
Dependent Claim
17 words
The filamentary reinforcement of claim 4, which has been impregnated with a thermosetting resin containing carbon powder.
Claim 15
Dependent Claim
23 words
The textile or filamentary structure of claim 1 wherein said first filament-disposition plane is orthogonal to its path in said second filament-disposition plane.
Claim 16
Dependent Claim
17 words
The textile or filamentary structure of claim 1 wherein the paths of said filament 2 are parallel.
Claim 17
Dependent Claim
20 words
The textile or filamentary structure of claim 1 wherein the textile or filamentary structure is reinforced by a thermoplastic resin.
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) | 1991-02-15 | 1991-08-17 | 1992-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-15 | 1995-08-17 | 1996-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-15 | 1999-08-17 | 2000-02-16 | $7700.00 | Window Closed / Lapsed |