US3831369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yarn structure and method of making same
Assignee: Leesona Corp
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Filing: 1972-08-11
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Granted: 1974-08-27
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Expires: 1992-08-11
Abstract
Abstract A yarn and method of making same formed from a roving having a plurality of substantially parallel untwisted discontinuous textile fibers and a single continuous yarn strand wrapped about said roving forming spaced-apart helices having uniform directions.
Inventors
- 👤 F Northup
- 👤 D Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:36
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; D02G3/38; D02G3/385; D02G3/32; D02G3/328
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
40 words
A yarn comprising a strand of substantially parallel untwisted discontinuous textile fibers, a continuous strand of spandex in said strand of untwisted fibers, and a continuous binder strand wound about said strand of untwisted fibers and forming spaced-apart helices therealong.
Claim 2
Dependent Claim
40 words
A yarn comprising a strand of substantially parallel untwisted discontinuous textile fibers, a continuous strand of spandex in said strand of untwisted fibers, and a continuous binder strand wound about said strand of untwisted fibers and forming spaced-apart helices therealong.
Claim 3
Independent Claim
101 words
A method of making yarn which comprises drafting A strand of substantially parallel untwisted discontinuous textile fibers by passing the same through rolls of a drafting unit while downstream thereof wrapping a continuous binder strand about the drafted strand to form spaced-apart helices thereon as the drafted strand in untwisted condition moves from the drafting rolls along a predetermined path of travel and wherein the discontinuous fibers of the strand are generally of a length sufficient to be engaged by and extend from the rolls of the drafting unit while their leading ends are being wrapped by the continuous binder strand.
Claim 4
Independent Claim
101 words
A method of making yarn which comprises drafting A strand of substantially parallel untwisted discontinuous textile fibers by passing the same through rolls of a drafting unit while downstream thereof wrapping a continuous binder strand about the drafted strand to form spaced-apart helices thereon as the drafted strand in untwisted condition moves from the drafting rolls along a predetermined path of travel and wherein the discontinuous fibers of the strand are generally of a length sufficient to be engaged by and extend from the rolls of the drafting unit while their leading ends are being wrapped by the continuous binder strand.
Claim 5
Dependent Claim
27 words
A method according to claim 2 wherein a continuous strand a spandex is incorporated in the drafted strand for being wrapped therewith by the continuous binder strand.
Claim 6
Dependent Claim
46 words
A method according to claim 2 including the additional step of further aligning the discontinuous textile fibers of the drafted strand in parallel and untwisted relationship by inducing an air flow longitudinally of the fibers after the fibers emerge from the rolls of the drafting unit.
Claim 7
Independent Claim
97 words
A method of making yarn which comprises drafting a strand of substantially parallel untwisted discontinuous textile fibers by passing the same through rolls of a drafting unit while downstream thereof wrapping a continuous strand about the drafted strand to form spaced-apart helices thereon as the drafted strand in untwisted condition moves from the drafting rolls along a predetermined path of travel and wherein the fibers of the drafted strand are further aligned in parallel and untwisted relationship by inducing an air flow longitudinally of the fibers after the fibers emerge from the rolls of the drafting unit.
Claim 8
Independent Claim
97 words
A method of making yarn which comprises drafting a strand of substantially parallel untwisted discontinuous textile fibers by passing the same through rolls of a drafting unit while downstream thereof wrapping a continuous strand about the drafted strand to form spaced-apart helices thereon as the drafted strand in untwisted condition moves from the drafting rolls along a predetermined path of travel and wherein the fibers of the drafted strand are further aligned in parallel and untwisted relationship by inducing an air flow longitudinally of the fibers after the fibers emerge from the rolls of the drafting unit.
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) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |