Patent US3751775A successfully refreshed from Google Patents.
US3751775A
Expired / Lapsed
US
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Apparatus and process for commingling multifilament yarn
Assignee: Honeywell International Inc
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Filing: 1972-06-07
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Granted: 1973-08-14
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Expires: 1992-06-07
Abstract
Abstract An improved apparatus and method for commingling multifilament yarn has been found. The apparatus comprises an elongated body having a straight yarn passageway with at least three orifices substantially equally spaced about the periphery of the body at substantially the same level. The orifice center lines are offset so that at least two do not intersect with the center of the effective diameter of the yarn passageway, yet all pass within an imaginary circle having a diameter about one-third the effective diameter, and the same center as the effective diameter, at the orifice level. Also, at least two of the center lines extended from the orifices should pass outside the imaginary circle at the orifice level section having the same center but only 0.02 of the effective diameter of the yarn passageway. The plane at the orifice level must be located within a length one-half the length of the yarn passageway and centered on the midpoint of the yarn passageway. These orifices communicate with a source of high pressure fluid. The high pressure fluid flows through the orifices into the yarn passageway causing a vortex of swirling fluid so that any yarn passing linearly through the passageway would have filaments commingled with one another. This improved process of entangling multifilament yarn can operate at from about 3,000 to about 8,000 feet per minute by passing continuous multifilament yarn through the above-described vortex.
Inventors
- 👤 J Psaras
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:24
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/08
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
190 words
An improved apparatus for commingling multifilament yarn comprising an elongated body having a straight yarn passageway passing through said elongated body, at least three orifices substantially equally spaced about the periphery of said body at substantially the same level, the plane at said orifice level must be located within a length one-half the length of the yarn passageway centered on the midpoint of length of the yarn passageway, said orifices communicating with said passageway so that the center line of all of said orifices, if extended, would pass within an area defined by a circle in a cross section at the orifice level having the same center as the circle of the effective diameter and having a diameter of about 0.3 times the effective diameter of the yarn passageway and at least 2 of said extended center lines would pass outside a circle in the same cross section having the same center but about 0.02 times the effective diameter of the yarn passageway said orifices communicating with a source of high pressure fluid so that any yarn passing linearly through said passageway would have continuous filaments commingled with one another.
Claim 2
Dependent Claim
190 words
An improved apparatus for commingling multifilament yarn comprising an elongated body having a straight yarn passageway passing through said elongated body, at least three orifices substantially equally spaced about the periphery of said body at substantially the same level, the plane at said orifice level must be located within a length one-half the length of the yarn passageway centered on the midpoint of length of the yarn passageway, said orifices communicating with said passageway so that the center line of all of said orifices, if extended, would pass within an area defined by a circle in a cross section at the orifice level having the same center as the circle of the effective diameter and having a diameter of about 0.3 times the effective diameter of the yarn passageway and at least 2 of said extended center lines would pass outside a circle in the same cross section having the same center but about 0.02 times the effective diameter of the yarn passageway said orifices communicating with a source of high pressure fluid so that any yarn passing linearly through said passageway would have continuous filaments commingled with one another.
Claim 3
Dependent Claim
82 words
The apparatus of claim 1 wherein said orifices are cylindrical and said extended center lines of said orifices pass within an area defined by the circle having the same center but a diameter of about 0.23 times the effective diameter of the yarn passageway and at least two of the said extended center lines would pass outside a circle in the same cross section having the same center but a diameter of about 0.03 times the effective diameter of the yarn passageway.
Claim 4
Dependent Claim
10 words
The apparatus of claim 1 wherein said fluid is air.
Claim 5
Dependent Claim
22 words
The apparatus of claim 1 wherein guides located above and below said apparatus are used to locate said yarn in said passageway.
Claim 6
Dependent Claim
21 words
The apparatus of claim 4 wherein said guides are located about 2 inches above and about 2 inches below said apparatus.
Claim 7
Dependent Claim
180 words
The improved process of entangling multifilament yarn comprising passing said yarn through a yarn passageway at speeds from about 3,000 to about 8,000 feet per minute while creating a highly turbulent whirlpool of entangling fluid in said yarn passageway by directing jets of fluid under pressure from at least three orifices located at substantially the same level in said yarn passageway, the plane at said orifice level must be located within a length one-half the length of the yarn passageway and centered on the midpoint of the length of the yarn passageway said fluid jets being directed so that at least two said jets do not impinge directly on the center of the effective diameter of said passageway, but so that all impinge directly on an area within a circle in a cross section at the orifice level having the same center as a circle of the effectiVe diameter but having a diameter of about 0.3 times the effective diameter of said yarn passageway whereby said yarn passing through said yarn passageway has its individual filaments entangled with one another.
Claim 8
Dependent Claim
180 words
The improved process of entangling multifilament yarn comprising passing said yarn through a yarn passageway at speeds from about 3,000 to about 8,000 feet per minute while creating a highly turbulent whirlpool of entangling fluid in said yarn passageway by directing jets of fluid under pressure from at least three orifices located at substantially the same level in said yarn passageway, the plane at said orifice level must be located within a length one-half the length of the yarn passageway and centered on the midpoint of the length of the yarn passageway said fluid jets being directed so that at least two said jets do not impinge directly on the center of the effective diameter of said passageway, but so that all impinge directly on an area within a circle in a cross section at the orifice level having the same center as a circle of the effectiVe diameter but having a diameter of about 0.3 times the effective diameter of said yarn passageway whereby said yarn passing through said yarn passageway has its individual filaments entangled with one another.
Claim 9
Dependent Claim
10 words
The method of claim 6 wherein said fluid is air.
Claim 10
Dependent Claim
18 words
The method of claim 6 wherein yarn guides are used to guide said yarn through said yarn passageway.
Claim 11
Dependent Claim
23 words
The method of claim 8 wherein said guides are located about 2 inches above and about 2 inches below said yarn passageway entrance.
Claim 12
Dependent Claim
51 words
The method of claim 6 wherein said fluid jets impinge on the annular area having the same center as the effective diameter with an inner diameter of about 0.03 times the effective diameter of the yarn passageway and an outer diameter about 0.23 times the effective diameter of the yarn passageway.
Claim 13
Dependent Claim
34 words
The method of claim 10 wherein all of said jets of fluid impinge the outer circle of the annulus but only at least two impinge outside of the inner circle of the annular area.
Claim 14
Dependent Claim
14 words
The method of claim 7 wherein said fluid pressure is 30 to 90 psig.
Claim 15
Dependent Claim
34 words
The method of claim 6 wherein the yarn has a textured denier of about 1,300 to about 2,600 and the tension on said yarn is from about 0.03 to about 0.2 gram per denier.
References Cited (Backward Citations)
US3525133A
Cited
US3673648A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |