US3826438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strand treatment
Assignee: Textured Yarn Co Inc
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Filing: 1966-12-30
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Granted: 1974-07-30
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Expires: 1986-12-30
Abstract
Abstract Tension in a textile strand being unwound from a traverse-wound package is equalized by passing the strand sequentially about portions of a plurality of rolls near the package, a frictionfree guide, and a pair of variably spaced rolls whose spacing controls braking of the package.
Inventors
- 👤 R Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:22
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/16; D02G1/168; B; B65; B65H; B65H57/00; B65H57/12; B65H59/00; B65H59/10; D02G1/12; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
289 words
In apparatus for strand treatment comprising means for supporting a package of textile strand rotatably for unreeling, means for braking rotation of the package, and strand-tension control means including a source of fluid under pressure, means connecting the fluid source to the braking means, a plurality of rolls adapted to receive the strand thereabout, one of the rolls being mounted for movement toward and away from another of the rolls in accordance with increase and decrease in tension of strand wrapped thereabout, valve means responsive to such roll movement, means connecting the fluid source to the valve means, the valve means being effective at increasing strand tension and accompanying decreasing roll separation to bleed fluid away from the source at an increAsing rate and thereby lessen the braking of the package-supporting means and being effective at decreasing strand tension and accompanying increasing roll separation to bleed fluid away from the source at a decreasing rate and thereby strengthen the braking of the package-supporting means, the improvement wherein a mounting for the movable roll is adapted to be suspended below a mounting for the other roll by strand wrapped about the rolls and to rise and fall in accordance with increasing and decreasing tension on the strand and to be guided in such rising and falling movement by means extending between the respective mountings, and wherein the valve means comprises a valve member attached to one of the mountings and a compartment attached to the other mounting, the compartment being supplied with fluid from the source and having a bleed opening therein and the valve member being adapted upon such movement to vary the rate of bleeding of fluid from the compartment and thereby vary the braking of the package.
Claim 2
Dependent Claim
289 words
In apparatus for strand treatment comprising means for supporting a package of textile strand rotatably for unreeling, means for braking rotation of the package, and strand-tension control means including a source of fluid under pressure, means connecting the fluid source to the braking means, a plurality of rolls adapted to receive the strand thereabout, one of the rolls being mounted for movement toward and away from another of the rolls in accordance with increase and decrease in tension of strand wrapped thereabout, valve means responsive to such roll movement, means connecting the fluid source to the valve means, the valve means being effective at increasing strand tension and accompanying decreasing roll separation to bleed fluid away from the source at an increAsing rate and thereby lessen the braking of the package-supporting means and being effective at decreasing strand tension and accompanying increasing roll separation to bleed fluid away from the source at a decreasing rate and thereby strengthen the braking of the package-supporting means, the improvement wherein a mounting for the movable roll is adapted to be suspended below a mounting for the other roll by strand wrapped about the rolls and to rise and fall in accordance with increasing and decreasing tension on the strand and to be guided in such rising and falling movement by means extending between the respective mountings, and wherein the valve means comprises a valve member attached to one of the mountings and a compartment attached to the other mounting, the compartment being supplied with fluid from the source and having a bleed opening therein and the valve member being adapted upon such movement to vary the rate of bleeding of fluid from the compartment and thereby vary the braking of the package.
Claim 3
Dependent Claim
135 words
Apparatus for strand treatment comprising means for supporting a traverse-wound package of textile strand rotatably for unreeling, means for braking rotation of the package, a plurality of rolls mounted rotatably on fixed axes paralleling the package axis, and adapted to receive the strand in a continuous path from the package, the package axis and roll axes being located at the corners of a polygon, a substantially friction-free guide at a fixed location further along in the path of the strand, and tension control means including a plurality of rolls adapted to receive the strand thereabout, one of the rolls being mounted for movement toward and away from another of the rolls in accordance with increase and decrease in tension of strand wrapped thereabout, and means responsive to such roll movement to actuate the braking means.
Claim 4
Dependent Claim
135 words
Apparatus for strand treatment comprising means for supporting a traverse-wound package of textile strand rotatably for unreeling, means for braking rotation of the package, a plurality of rolls mounted rotatably on fixed axes paralleling the package axis, and adapted to receive the strand in a continuous path from the package, the package axis and roll axes being located at the corners of a polygon, a substantially friction-free guide at a fixed location further along in the path of the strand, and tension control means including a plurality of rolls adapted to receive the strand thereabout, one of the rolls being mounted for movement toward and away from another of the rolls in accordance with increase and decrease in tension of strand wrapped thereabout, and means responsive to such roll movement to actuate the braking means.
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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) | 1977-07-29 | 1978-01-28 | 1978-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-29 | 1982-01-28 | 1982-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-29 | 1986-01-28 | 1986-07-30 | $7700.00 | Window Closed / Lapsed |