Patent US3653196A successfully refreshed from Google Patents.
US3653196A
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Yarn texturizing apparatus and process
Assignee: JP Stevens and Co Inc
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Filing: 1970-09-30
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Granted: 1972-04-04
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Expires: 1990-09-30
Abstract
Abstract Multifilament yarn, such as yarn of continuous glass fibers, synthetic fibers, and the like, is texturized by feeding it rapidly into a chamber in which it encounters a swirling flow of a fluid, preferably a gas such as air, which causes the yarn to rotate in loop form in a manner similar to a skipping rope but at an enormously greater rate. The swirling air blast is introduced tangentially just ahead of the yarn introduction, and the yarn and air then pass out axially at about 90* to the air introduction through a tube or conduit with air escape slots to eliminate swirling substantially. This causes the yarn to assume a false twist, and on untwisting opens up the individual filaments. The yarn is then doubled back on itself, which causes formation of loops, imparting to the yarn a bulk and texture.
Inventors
- 👤 Herbert J Pike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:02
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/16
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
123 words
A process of texturizing and bulking multifilament yarn which comprises producing a zone of swirling fluid, over feeding the yarn at an angle relative to an axis of said swirling fluid into the central portion of said zone, the zone being located slightly beyond the entrance point of the yarn, whereby at least one spinning loop in the yarn is produced by the swirling fluid, and the yarn is given a false twist, discharging the yarn and fluid axially, bypassing a portion of the swirling fluid past the yarn in an amount sufficient to eliminate swirling substantially, untwisting the yarn, and changing the direction of the yarn, whereby loops of individual filaments are formed, and winding up the thus textured and bulked yarn.
Claim 2
Dependent Claim
123 words
A process of texturizing and bulking multifilament yarn which comprises producing a zone of swirling fluid, over feeding the yarn at an angle relative to an axis of said swirling fluid into the central portion of said zone, the zone being located slightly beyond the entrance point of the yarn, whereby at least one spinning loop in the yarn is produced by the swirling fluid, and the yarn is given a false twist, discharging the yarn and fluid axially, bypassing a portion of the swirling fluid past the yarn in an amount sufficient to eliminate swirling substantially, untwisting the yarn, and changing the direction of the yarn, whereby loops of individual filaments are formed, and winding up the thus textured and bulked yarn.
Claim 3
Dependent Claim
13 words
A process according to claim 1 in which the swirling fluid is air.
Claim 4
Dependent Claim
15 words
A process according to claim 2 in which the yarn is a multifilament glass yarn.
Claim 5
Dependent Claim
20 words
A process according to claim 3 in which the rate of yarn feed is more than 200 yards per minute.
Claim 6
Dependent Claim
20 words
A process according to claim 1 in which the rate of yarn feed is more than 200 yards per minute.
Claim 7
Dependent Claim
20 words
A process according to claim 2 in which the rate of yarn feed is more than 200 yards per minute.
Claim 8
Dependent Claim
25 words
A process according to claim 2 in which the bypassing of the swirling air is in a multiplicity of relatively long streams flowing substantially axially.
Claim 9
Dependent Claim
24 words
A process according to claim 2 in which the bypassing of the swirling air is in short separated streams into an expanded annular zone.
Claim 10
Independent Claim
170 words
An apparatus for texturing and bulking yarn comprising a texturizing chamber, a yarn feed opening therein at an angle relative to an axis of said chamber, fluid introducing means located tangentially to said axis and near but just beyond the point of yarn feed opening to produce a rotating, helical, swirling fluid motion, the rotation of the fluid being in a plane substantially at right angles to the passage of yarn through the texturizing chamber, means for feeding the yarn through the yarn feed opening substantially into the center of the swirling fluid, an axial outlet conduit for the yarn and a portion of the fluid, means for bypassing the remainder of the fluid, the length of the outlet conduit being sufficient to effect a substantial degree of untwisting of the yarn, and the bypassing means having a sufficient volume substantially to eliminate fluid swirl, and means for changing the direction of the travel of the yarn leaving the outlet conduit, whereby loops are formed in the final texturized yarn.
Claim 11
Independent Claim
170 words
An apparatus for texturing and bulking yarn comprising a texturizing chamber, a yarn feed opening therein at an angle relative to an axis of said chamber, fluid introducing means located tangentially to said axis and near but just beyond the point of yarn feed opening to produce a rotating, helical, swirling fluid motion, the rotation of the fluid being in a plane substantially at right angles to the passage of yarn through the texturizing chamber, means for feeding the yarn through the yarn feed opening substantially into the center of the swirling fluid, an axial outlet conduit for the yarn and a portion of the fluid, means for bypassing the remainder of the fluid, the length of the outlet conduit being sufficient to effect a substantial degree of untwisting of the yarn, and the bypassing means having a sufficient volume substantially to eliminate fluid swirl, and means for changing the direction of the travel of the yarn leaving the outlet conduit, whereby loops are formed in the final texturized yarn.
Claim 12
Dependent Claim
20 words
An apparatus according to claim 9 in which the tangential fluid introducing means is substantially opposite the yarn feed opening.
Claim 13
Dependent Claim
42 words
An apparatus according to claim 9 in which the yarn feed opening diameter is sufficiently greater than that of the yarn so that no undue friction takes place but smaller than that permitting substantial blowback of fluid through the yarn feed opening.
Claim 14
Dependent Claim
42 words
An apparatus according to claim 10 in which the yarn feed opening diameter is sufficiently greater than that of the yarn so that no undue friction takes place but smaller than that permitting substantial blowback of fluid through the yarn feed opening
Claim 15
Dependent Claim
23 words
An apparatus according to claim 9 in which peripheral axial bypass passages are provided in the outlet conduit through which swirling fluid passes.
Claim 16
Dependent Claim
23 words
An apparatus according to claim 10 in which peripheral axial bypass passages are provided in the outlet conduit through which swirling fluid passes.
Claim 17
Dependent Claim
23 words
An apparatus according to claim 11 in which peripheral axial bypass passages are provided in the outlet conduit through which swirling fluid passes.
Claim 18
Dependent Claim
62 words
An apparatus according to claim 9 in Which the axial outlet conduit is of smaller cross-section than the texturizing chamber and the outlet end of the texturizing chamber is provided with an extension surrounding the outlet conduit and forming therewith an annular chamber, said annular chamber communicating with said axial outlet conduit end, whereby fluid passes out said end with the yarn.
Claim 19
Dependent Claim
62 words
An apparatus according to claim 10 in which the axial outlet conduit is of smaller cross-section than the texturizing chamber and the outlet end of the texturizing chamber is provided with an extension surrounding the outlet conduit and forming therewith an annular chamber, said annular chamber communicating with said axial outlet conduit end, whereby fluid passes out said end with the yarn.
Claim 20
Dependent Claim
170 words
An insert capable of being inserted into the texturizing chamber of a cocurrent air texturizing apparatus, the insert having an exterior surface smaller than the interior surface of said texturizing chamber, whereby on inserting the insert a space is formed between the exterior surface of the insert and the interior surface of the texturizing chamber, a texturizing chamber in said insert, said insert being provided with an axial outlet of smaller cross-section than the insert texturizing chamber, an end flange around the axial outlet conduit and forming an end wall of the insert texturizing chamber, air escape holes through said flange from the insert texturizing chamber to the end of the flange, at least one opening into the insert texturizing chamber located tangentially with respect to an axis of said chamber and communicating with said space, and a yarn inlet opening into the insert texturizing chamber at an angle relative to said axis and positioned so that when yarn is introduced it enters the chamber slightly behind the tangential openings.
Claim 21
Dependent Claim
170 words
An insert capable of being inserted into the texturizing chamber of a cocurrent air texturizing apparatus, the insert having an exterior surface smaller than the interior surface of said texturizing chamber, whereby on inserting the insert a space is formed between the exterior surface of the insert and the interior surface of the texturizing chamber, a texturizing chamber in said insert, said insert being provided with an axial outlet of smaller cross-section than the insert texturizing chamber, an end flange around the axial outlet conduit and forming an end wall of the insert texturizing chamber, air escape holes through said flange from the insert texturizing chamber to the end of the flange, at least one opening into the insert texturizing chamber located tangentially with respect to an axis of said chamber and communicating with said space, and a yarn inlet opening into the insert texturizing chamber at an angle relative to said axis and positioned so that when yarn is introduced it enters the chamber slightly behind the tangential openings.
Claim 22
Dependent Claim
34 words
An insert according to claim 18 in which the end of the insert texturizing chamber opposite the flange is provided with a plug carrying an angled groove mating with the angled yarn inlet opening.
Claim 23
Dependent Claim
54 words
A modified cocurrent air texturizing apparatus with an insert according to claim 18 inserted therein, the apparatus being provided with a yarn and air outlet, an air inlet means into the side of said space, and an angled yarn inlet hole in said apparatus mating with the angled yarn inlet hole in the insert.
Claim 24
Dependent Claim
26 words
An apparatus according to claim 20 provided with means for regulating the relative flow of air through the air escape holes and the insert axial outlet.
Claim 25
Dependent Claim
45 words
An apparatus according to claim 21 in which said regulating means comprises an end cap having a yarn outlet, said cap having internal threads and mating internal threads on the apparatus, the cap being provided with a tapered portion aligned with the insert axial outlet.
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) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |