US3789469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yarn treating method
Assignee: Fujibo Holdings Inc
•
Filing: 1972-02-15
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Granted: 1974-02-05
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Expires: 1992-02-15
Abstract
Abstract A plurality of sheet-like yarn groups each consisting of a number of parallel yarns are drawn out from respective supply beams and laminated in layers to form a laminated yarn group. The laminated yarn group is divided into a plurality of parallel narrow yarn groups and subjected to treatment in liquid. Each treated narrow yarn group is wound up on an associated take-up beam.
Inventors
- 👤 M Kodama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:34
CPC Classifications
D; D06; D06B; D06B3/00; D06B3/04; D02; D02H; D02H5/00; D02H5/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
144 words
A method for treating yarns comprising the steps of drawing out a plurality of sheet-like yarn groups each having parallel yarns from respective supply beams, laminating said sheet-like yarn groups in layers to form a laminated yarn group, dividing said laminated yarn group into a plurality of parallel narrow yarn groups by means of lease yarns provided across said parallel yarns at predetermined intervals, each of said divided yarn groups having the same number of yarns and constituting a layer of said narrow yarn group, immersing said narrow yarn groups into treating liquid for treatment, winding up each narrow yarn group to a take-up beam associated with that narrow yarn group, drawing out each narrow yarn group from its said take-up beam, separating said narrow yarn group into layers by means of said lease yarns, and winding up said yarns separately on respective bobbins.
Claim 2
Independent Claim
144 words
A method for treating yarns comprising the steps of drawing out a plurality of sheet-like yarn groups each having parallel yarns from respective supply beams, laminating said sheet-like yarn groups in layers to form a laminated yarn group, dividing said laminated yarn group into a plurality of parallel narrow yarn groups by means of lease yarns provided across said parallel yarns at predetermined intervals, each of said divided yarn groups having the same number of yarns and constituting a layer of said narrow yarn group, immersing said narrow yarn groups into treating liquid for treatment, winding up each narrow yarn group to a take-up beam associated with that narrow yarn group, drawing out each narrow yarn group from its said take-up beam, separating said narrow yarn group into layers by means of said lease yarns, and winding up said yarns separately on respective bobbins.
Claim 3
Dependent Claim
45 words
A yarn treating method as claimed in claim 1, wherein a plurality of said take-up beams are arranged with their axes being at right angles with the advancing direction of said yarns, said take-up beams being away from one another aloNg the yarn advancing direction.
Claim 4
Dependent Claim
29 words
A yarn treating method as claimed in claim 1, wherein each of said lease yarns is inserted alternately above and below said yarns, said lease yarns being differently colored.
Claim 5
Dependent Claim
65 words
A yarn treating method as claimed in claim 1 wherein said yarns wound up on said take-up beam are passed through a perforated guide board in accordance with the indication of said lease yarns, said yarns between said take-up beam and said perforated guide board being beaten by a beater to facilitate separation thereof and their impact or inertia force being absorbed by dancer rollers.
References Cited (Backward Citations)
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |