US3899867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for forming helically wrapped yarns
Assignee: SPANCO YARNS Inc
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Filing: 1974-07-15
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Granted: 1975-08-19
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Expires: 1994-07-15
Abstract
Abstract A method and apparatus for obtaining a higher quality wrapped yarn during a wrapping operation wherein a binder strand, carried by a package mounted for rotation on a hollow spindle, is wrapped around a core strand moving through the hollow spindle during which the binder strand inherently balloons outwardly in its path of travel from the package to the core strand being wrapped, and wherein the normal path of travel of the ballooning strand is intermittently and repeatedly interrupted so as to partially collapse and impart an undulating movement to the ballooning binder strand to effect a whip-like action thereto causing fiber waste picked up by the binder strand to be cast off the same. Also, any picked-up fiber waste still adhering to the ballooning binder strand is attenuated and moved along the binder strand toward the core strand so that the attenuated picked-up fiber waste will be less discernible in the wrapped yarn. Suction means communicates with the hollow spindle for facilitating the passage of the wrapped yarn therethrough.
Inventors
- 👤 Francis B Northup
- 👤 Donald R Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:42
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; D02G3/38; D02G3/385; B; B65; B65H; B65H51/00; B65H51/16; D01; D01H; D01H11/00; D01H11/005; D01H15/00; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
111 words
A method of obtaining a higher quality wrapped yarn during a wrapping operation wherein a binder stRand carried by a package mounted for rotation on a hollow spindle is wrapping a core strand moving through the hollow spindle and wherein the binder strand inherently balloons outwardly in its path of travel from the package to the core strand being wrapped, said method comprising intermittently and repeatedly interrupting the normal path of travel of the ballooning binder strand so as to impart an undulating movement thereto to cause fiber waste picked up by the binder strand to be cast off the same and to thus improve the quality of the wrapped yarn.
Claim 2
Independent Claim
111 words
A method of obtaining a higher quality wrapped yarn during a wrapping operation wherein a binder stRand carried by a package mounted for rotation on a hollow spindle is wrapping a core strand moving through the hollow spindle and wherein the binder strand inherently balloons outwardly in its path of travel from the package to the core strand being wrapped, said method comprising intermittently and repeatedly interrupting the normal path of travel of the ballooning binder strand so as to impart an undulating movement thereto to cause fiber waste picked up by the binder strand to be cast off the same and to thus improve the quality of the wrapped yarn.
Claim 3
Dependent Claim
49 words
A method according to claim 1 which includes inducing an airflow into the spindle and along the same in the direction of movement of the wrapped yarn therethrough to prevent waste material, such as lint, from accumulating in the spindle and interfering with passage of the wrapped yarn therethrough.
Claim 4
Independent Claim
106 words
A method of obtaining a higher quality wrapped yarn during a wrapping operation wherein a binder strand carried by a package mounted for rotation on a hollow spindle is wrapping a core strand moving through the hollow spindle and wherein the binder strand inherently balloons outwardly in its path of travel from the package to the core strand being wrapped, said method comprising intermittently and repeatedly partially collapsing the ballooning of the binder strand to effect a whip-like action thereto to cause fiber waste picked up by the binder strand to be cast off the binder strand and thus improve the quality of the wrapped yarn.
Claim 5
Independent Claim
106 words
A method of obtaining a higher quality wrapped yarn during a wrapping operation wherein a binder strand carried by a package mounted for rotation on a hollow spindle is wrapping a core strand moving through the hollow spindle and wherein the binder strand inherently balloons outwardly in its path of travel from the package to the core strand being wrapped, said method comprising intermittently and repeatedly partially collapsing the ballooning of the binder strand to effect a whip-like action thereto to cause fiber waste picked up by the binder strand to be cast off the binder strand and thus improve the quality of the wrapped yarn.
Claim 6
Dependent Claim
42 words
A method according to claim 3 wherein the step of intermittently and repeatedly partially collapsing the ballooning of the binder strand comprises wipingly engaging the binder strand against an elongate obstruction positioned in the path of travel of the ballooning binder strand.
Claim 7
Dependent Claim
75 words
A method according to claim 3 wherein the step of intermittently and repeatedly partially collapsing the ballooning of the binder strand is effected by positioning an elongate obstruction to extend from outwardly of the package of binder strand upwardly above the end of the package and adjacent the upper end of the hollow spindle for engaging the ballooning binder strand in its path of travel to and into the upper end of the hollow spindle.
Claim 8
Independent Claim
144 words
A method of obtaining a higher quality wrapped yarn during a wrapping operation wherein a binder strand carried by a package mounted for rotation on a hollow spindle is wrapping a core strand moving through the hollow spindle and wherein the binder strand inherently balloons outwardly in its path of travel from the package to the core strand being wrapped, said method comprising intermittently and repeatedly interrupting the normal path of travel of the ballooning binder strand so as to impart an undulating movement thereto to cause fiber waste picked up by the binder strand to be cast off the same while progressively attenuating and moving along the binder strand toward the core strand any picked-up fiber waste still adhering to the ballooning binder strand during its undulating movement so the thus attenuated picked-up fiber waste will be less discernible in the wrapped yarn.
Claim 9
Independent Claim
144 words
A method of obtaining a higher quality wrapped yarn during a wrapping operation wherein a binder strand carried by a package mounted for rotation on a hollow spindle is wrapping a core strand moving through the hollow spindle and wherein the binder strand inherently balloons outwardly in its path of travel from the package to the core strand being wrapped, said method comprising intermittently and repeatedly interrupting the normal path of travel of the ballooning binder strand so as to impart an undulating movement thereto to cause fiber waste picked up by the binder strand to be cast off the same while progressively attenuating and moving along the binder strand toward the core strand any picked-up fiber waste still adhering to the ballooning binder strand during its undulating movement so the thus attenuated picked-up fiber waste will be less discernible in the wrapped yarn.
Claim 10
Dependent Claim
50 words
A method according to claim 6 which includes inducing an airflow along the hollow spindle in the direction of movement of the wrapped yarn therethrough for aiding in directing the attenuated picked-up fiber waste into the hollow spindle during the wrapping thereof around the core strand with the binder strand.
Claim 11
Independent Claim
208 words
A method of obtaining a higher quality wrapped yarn during a wrapping operation wherein a binder strand carried by a package mounted for rotation on a hollow spindle is wrapping a core strand moving through the hollow spindle and wherein the binder strand inherently balloons outwardly in its path of travel upwardly from the package to the core strand being wrapped, said method comprising intermittently and repeatedly interrupting the normal path of travel of the ballooning binder strand by positioning an elongate obstruction to extend from outwardly of the package of binDer strand upwardly above the upper end of the package and adjacent the upper end of the hollow spindle so as to impart an undulating movement to the ballooning binder strand to cause fiber waste picked up by the binder strand to be cast off the same while repeatedly wiping the ballooning binder strand along the elongate obstruction so as to progressively move in the direction of travel of the binder strand any picked-up fiber waste still adhering to the ballooning binder strand during its undulating movement to thereby prevent the adhering fiber waste from remaining in the ballooning binder strand but along the binder strand and be wrapped around the core strand with the binder strand.
Claim 12
Independent Claim
208 words
A method of obtaining a higher quality wrapped yarn during a wrapping operation wherein a binder strand carried by a package mounted for rotation on a hollow spindle is wrapping a core strand moving through the hollow spindle and wherein the binder strand inherently balloons outwardly in its path of travel upwardly from the package to the core strand being wrapped, said method comprising intermittently and repeatedly interrupting the normal path of travel of the ballooning binder strand by positioning an elongate obstruction to extend from outwardly of the package of binDer strand upwardly above the upper end of the package and adjacent the upper end of the hollow spindle so as to impart an undulating movement to the ballooning binder strand to cause fiber waste picked up by the binder strand to be cast off the same while repeatedly wiping the ballooning binder strand along the elongate obstruction so as to progressively move in the direction of travel of the binder strand any picked-up fiber waste still adhering to the ballooning binder strand during its undulating movement to thereby prevent the adhering fiber waste from remaining in the ballooning binder strand but along the binder strand and be wrapped around the core strand with the binder strand.
Claim 13
Independent Claim
181 words
A method of obtaining a higher quality wrapped yarn during a wrapping operation wherein a binder strand carried by a package mounted for rotation on a substantially vertically positioned hollow spindle is wrapping a core strand moving downwardly through the hollow spindle and wherein the binder strand inherently balloons outwardly in its path of travel upwardly from the package to the core strand being wrapped, said method comprising intermittently and repeatedly partially collapsing the ballooning of the binder strand by wipingly engaging the binder strand against an elongate obstruction below the widest portion of the ballooning thereof and progressively thereafter in an upward direction toward the upper end of the spindle during each of a plurality of successive revolutions of the ballooning binder strand to cause fiber waste picked up by the binder strand to be cast off the same while causing any fiber waste still adhering to the ballooning binder strand to be attenuated along the binder strand so as to be wrapped around the core strand with the binder strand but to be less discernible in the wrapped yarn.
Claim 14
Independent Claim
181 words
A method of obtaining a higher quality wrapped yarn during a wrapping operation wherein a binder strand carried by a package mounted for rotation on a substantially vertically positioned hollow spindle is wrapping a core strand moving downwardly through the hollow spindle and wherein the binder strand inherently balloons outwardly in its path of travel upwardly from the package to the core strand being wrapped, said method comprising intermittently and repeatedly partially collapsing the ballooning of the binder strand by wipingly engaging the binder strand against an elongate obstruction below the widest portion of the ballooning thereof and progressively thereafter in an upward direction toward the upper end of the spindle during each of a plurality of successive revolutions of the ballooning binder strand to cause fiber waste picked up by the binder strand to be cast off the same while causing any fiber waste still adhering to the ballooning binder strand to be attenuated along the binder strand so as to be wrapped around the core strand with the binder strand but to be less discernible in the wrapped yarn.
Claim 15
Dependent Claim
144 words
In a machine for making a higher quality wrapped yarn from a core strand and a binder strand, said machine comprising a hollow spindle having a package of binder strand mounted for rotation thereon and adapted to be wrapped around the core strand as the core strand is moving into one end of and through the hollow spindle and wherein the binder strand inherently balloons outwardly in its path of travel from the package to the core strand being wrapped, the combination therewith of means positioned in the path of travel of the ballooning binder strand for intermittently and repeatedly interrupting the path of travel of the ballooning binder strand and imparting an undulating movement thereto to cause fiber waste picked up by the binder strand to be cast off the same and to thus improve the quality of the wrapped yarn being formed.
Claim 16
Dependent Claim
144 words
In a machine for making a higher quality wrapped yarn from a core strand and a binder strand, said machine comprising a hollow spindle having a package of binder strand mounted for rotation thereon and adapted to be wrapped around the core strand as the core strand is moving into one end of and through the hollow spindle and wherein the binder strand inherently balloons outwardly in its path of travel from the package to the core strand being wrapped, the combination therewith of means positioned in the path of travel of the ballooning binder strand for intermittently and repeatedly interrupting the path of travel of the ballooning binder strand and imparting an undulating movement thereto to cause fiber waste picked up by the binder strand to be cast off the same and to thus improve the quality of the wrapped yarn being formed.
Claim 17
Dependent Claim
74 words
Apparatus according to claim 10 including means defining an airflow passageway communicatively connecting said hollow spindle to a source of suction and arranged to induce an airflow along the hollow spindle in the direction of movement of the wrapped yarn therethrough for aiding in directing any fiber waste which may still be adhering to the binder strand into and through the hollow spindle during the wrapping of the binder strand around the core strand.
Claim 18
Dependent Claim
131 words
Apparatus according to claim 10 wherein said means for intermittently and repeatedly interrupting the ballooning of the binder strand comprises an elongate rod extending from a position outwardly of the package of binder strand and at an angle toward said one end of the hollow spindle and terminating in a free end adjacent to but in spaced relation from said one end of the hollow spindle to thus be disposed at an angle to the ballooning binder strand, supporting means supporting said elongate rod remote from said free end thereof and outwardly of the package of binder strand, and said supporting means including means adjustably mounting said rod for adjustment substantially parallel to its longitudinal axis and for angular adjustment toward and away from said one end of the hollow spindle.
Claim 19
Dependent Claim
34 words
Apparatus according to claim 10 wherein said means for intermittently and repeatedly inteRrupting the ballooning of the binder strand comprises an elongate obstruction positioned in the path of travel of the ballooning binder strand.
Claim 20
Dependent Claim
85 words
Apparatus according to claim 13 wherein said hollow spindle is vertically disposed and has a free upper end extending upwardly above the package of binder strand mounted for rotation thereon, and wherein said elongate obstruction extends from outwardly of the package of binder strand upwardly above the upper end of the package and has a free end terminating adjacent to but in spaced relation from the upper end of the hollow spindle to thus be angularly disposed at an incline to the ballooning binder strand.
Claim 21
Dependent Claim
136 words
Apparatus according to claim 13 wherein said hollow spindle is vertically disposed and has a free upper end extending upwardly above the package of binder strand mounted for rotation thereon, and wherein said elongate obstruction is positioned to extend upwardly at an incline from outwardly below the outermost portion of the ballooning binder strand and has a free end terminating adjacent the upper end of the hollow spindle but below the same and offset to one side of said hollow spindle so that the ballooning strand will initially engage the elongate obstruction at a location below the widest portion of the ballooning strand and will be wipingly engaged by the elongate obstruction as the ballooning strand moves upwardly along and then past the free end of the elongate obstruction between the package and the hollow spindle.
Claim 22
Dependent Claim
103 words
Apparatus according to claim 13 wherein said hollow spindle is vertically disposed and has a free upper end extending upwardly above the package of binder strand mounted for rotation thereon, and wherein said elongate obstruction comprises a round rod extending upwardly at an incline from a position outwardly alongside the package and having a free upper end terminating to one side of and adjacent said upper end of the hollow spindle, the free upper end of the rod being so positioned relative to the hollow spindle that the rod extends tangentially to an imaginary circle generated about the axis of said hollow spindle.
Claim 23
Dependent Claim
228 words
In a machine for making a higher quality wrapped yarn from a core strand and a binder strand, said machine comprising a substantially vertically disposed hollow spindle having a package of binder strand mounted for rotation thereon and adapted to be wrapped around the core strand as the core strand is moving downwardly into a free upper end of and through the hollow spindle and wherein the binder strand inherently balloons outwardly in its path of travel from the package upwardly to the core strand being wrapped, the combination therewith of an elongate rod extending upwardly at an incline from a position outwardly of and spaced below the level of the upper end of the package, said elongate rod having a free upper end terminating to one side of, adjacent to and below the level of said free upper end of said hollow spindle, and said free upper end of said rod being so positioned relative to said hollow spindle that said rod extends tangentially of an imaginary circle generated about the axis of said hollow spindle so as to intermittently and repeatedly interrupt the path of travel of the ballooning binder strand and to impart an undulating movement thereto to cause fiber waste picked up by the binder strand to be cast off the same and to thus improve the quality of the wrapped yarn being formed.
Claim 24
Dependent Claim
228 words
In a machine for making a higher quality wrapped yarn from a core strand and a binder strand, said machine comprising a substantially vertically disposed hollow spindle having a package of binder strand mounted for rotation thereon and adapted to be wrapped around the core strand as the core strand is moving downwardly into a free upper end of and through the hollow spindle and wherein the binder strand inherently balloons outwardly in its path of travel from the package upwardly to the core strand being wrapped, the combination therewith of an elongate rod extending upwardly at an incline from a position outwardly of and spaced below the level of the upper end of the package, said elongate rod having a free upper end terminating to one side of, adjacent to and below the level of said free upper end of said hollow spindle, and said free upper end of said rod being so positioned relative to said hollow spindle that said rod extends tangentially of an imaginary circle generated about the axis of said hollow spindle so as to intermittently and repeatedly interrupt the path of travel of the ballooning binder strand and to impart an undulating movement thereto to cause fiber waste picked up by the binder strand to be cast off the same and to thus improve the quality of the wrapped yarn being formed.
Claim 25
Dependent Claim
91 words
Apparatus according to claim 17 including means defining an airflow passageway communicatively connecting said hollow spindle to a source of suction and arranged to induce an airflow along the spindle in the direction of movement of the wrapped yarn therethrough to prevent waste material, such as lint, from accumulating in said hollow spindle and interfering with passage of the wrapped yarn therethrough and to also aid in directing into said spindle any fiber waste which may still be adhering to the binder strand as it is wrapping around the core strand.
Claim 26
Dependent Claim
28 words
AppAratus according to claim 17 wherein said free end of said elongate rod terminates inwardly of the normal path of the balloon defined by the ballooning binder strand.
Claim 27
Dependent Claim
75 words
Apparatus according to claim 17 including means adjustably supporting a lower portion of said elongate rod remote from said free upper end thereof, and said supporting means including means mounting said elongate rod for longitudinal adjustment parallel to the axis thereof and for angular adjustment about a horizontal axis for adjustably varying the incline of said elongate rod with respect to said substantially vertically disposed hollow spindle and the package of binder strand mounted thereon.
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) | 1978-08-18 | 1979-02-17 | 1979-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-18 | 1983-02-17 | 1983-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-18 | 1987-02-17 | 1987-08-19 | $7700.00 | Window Closed / Lapsed |