US4586679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yarn package of carbon filament yarn
Assignee: Toray Industries Inc
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Filing: 1984-02-06
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Granted: 1986-05-06
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Expires: 2004-02-06
Abstract
Abstract A package of carbon filament yarn having no slipover tendency upon unwinding thereof, in which a yarn trace formed by a traverse is repeated every n cycles at a predetermined shifting ratio in a range of 50% to 150% relative to the yarn width, n being a positive integer of not more than 9. The package can be obtained by using a conventional spindle drive winder under a selected winding ratio and winding tension.
Inventors
- 👤 Ryuichi Yamamoto
- 👤 Hironobu Nojiri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:55
CPC Classifications
B; B65; B65H; B65H55/00; B65H55/04; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
129 words
A yarn package comprising a bobbin and a continuous carbon filament yarn wound in layers of helical coils on the bobbin the form of a of square-end cheese in which the yarn is placed with a shifting ratio within a range of from 50% to 150% wherein the shifting ratio is determined by the shifting distance shifted in a longitudinal direction of the package from a yarn position in a layer of winding of the yarn to another yarn position in another layer of winding of the yarn formed after N traverse cycle(s) from the former yarn position, divided by the width of the yarn times 100 and wherein the N is a positive integer, and in which the N is in a range of from 1 to 9.
Claim 2
Dependent Claim
129 words
A yarn package comprising a bobbin and a continuous carbon filament yarn wound in layers of helical coils on the bobbin the form of a of square-end cheese in which the yarn is placed with a shifting ratio within a range of from 50% to 150% wherein the shifting ratio is determined by the shifting distance shifted in a longitudinal direction of the package from a yarn position in a layer of winding of the yarn to another yarn position in another layer of winding of the yarn formed after N traverse cycle(s) from the former yarn position, divided by the width of the yarn times 100 and wherein the N is a positive integer, and in which the N is in a range of from 1 to 9.
Claim 3
Dependent Claim
21 words
A yarn package according to claim 1, in which the shifting ratio is within a range of from 75% to 125%.
Claim 4
Dependent Claim
20 words
A yarn package according to claim 1, in which the N is within a range of from 2 to 6.
Claim 5
Dependent Claim
31 words
A yarn package according to claim 1, in which the package has an initial winding angle of not more than 30° and a final winding angle of not less than 4°.
Claim 6
Dependent Claim
28 words
A yarn package according to claim 4, in which the initial winding angle is not less than 10° and the final winding angle is not more than 12°.
Claim 7
Dependent Claim
18 words
A yarn package according to claim 5, in which the initial winding angle is not more than 17°.
Claim 8
Dependent Claim
18 words
A yarn package according to claim 5, in which the final winding angle is not less than 5°.
Claim 9
Dependent Claim
23 words
A yarn package according to claim 1, in which the yarn width is within a range of from 1 mm to 5 mm.
Claim 10
Dependent Claim
23 words
A yarn package according to claim 8, in which the yarn width is within a range of from 2 mm to 4 mm.
Claim 11
Dependent Claim
41 words
A yarn package according to claim 1, in which the wound yarn volume of the package is more than 0.1 kg per inch of package width and the hardness of the package is within a range of from 50° to 85°.
Claim 12
Dependent Claim
20 words
A yarn package according to claim 10, in which the hardness is within a range of from 65° to 75°.
Claim 13
Dependent Claim
19 words
A yarn package according to claim 1, in which the carbon filament yarn is originated from acrylonitrile synthetic fibers.
Claim 14
Dependent Claim
33 words
A yarn package according to claim 1, in which the carbon filament yarn has a total denier of about 3600 and the shifting ratio is within a range of from 50% to 100%.
Claim 15
Dependent Claim
33 words
A yarn package according to claim 1, in which the carbon filament yarn has a total denier of about 7200 and the shifting ratio is within a range of from 100% to 150%.
Claim 16
Dependent Claim
112 words
A yarn package comprising a support and a continuous carbon filament yarn wound in successive layers of helical coils on the support in the form of a square-end cheese in which the yarn coils in some layers are shifted with respect to the yarn coils of other layers, the shifted coils being positioned at a shifting ratio of from 50% to 150%, the shifting ratio being the shifting distance between a first yarn coil position in a layer and a successive yarn coil position in a successive layer, divided by the width of the yarn, the number of layers between said first layer and said successive layer being from 1 to 9.
Claim 17
Dependent Claim
112 words
A yarn package comprising a support and a continuous carbon filament yarn wound in successive layers of helical coils on the support in the form of a square-end cheese in which the yarn coils in some layers are shifted with respect to the yarn coils of other layers, the shifted coils being positioned at a shifting ratio of from 50% to 150%, the shifting ratio being the shifting distance between a first yarn coil position in a layer and a successive yarn coil position in a successive layer, divided by the width of the yarn, the number of layers between said first layer and said successive layer being from 1 to 9.
References Cited (Backward Citations)
US2608354A
Cited
US3334828A
Cited
US3310248A
Cited
US3606197A
Cited
US3718288A
Cited
US3741491A
Cited
US4296889A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-05-05 | 1989-11-04 | 1990-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-05 | 1993-11-04 | 1994-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-05 | 1997-11-04 | 1998-05-06 | $7700.00 | Window Closed / Lapsed |