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US3983609A Expired / Lapsed US ⏱️ 0.0 years remaining

Air entanglement of yarn

Assignee: JP Stevens and Co Inc
•
Filing: 1975-08-25
•
Granted: 1976-10-05
•
Expires: 1995-08-25
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Abstract

Abstract Yarn is treated in an air entangling apparatus having a yarn introducing guide tube through which one or more yarns are fed, a central bore positioned so that the yarn guiding tube enters it at an angle, and an air jet blowing into the central bore substantially at right angles to the axis thereof. The central bore extends through the texturizing block, and the air jet causes air to leave at both ends of the bore. The yarn continues through the bore, leaving at the downstream end. Overfeed of the yarn is kept at a fairly low point, from a fraction of a percent to a maximum of about 10% and the air pressure is also moderately low, preferably from about 6 psig to 12 psig. At least one of the yarns used is a multifilament yarn and treatment with the present apparatus entangles or interlaces the filaments. If two or more yarns are employed, the product is a plied yarn.

Inventors

  • 👤 Herbert J. Pike

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-10 01:47
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/08

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 55 words
An air jet apparatus for the production of entangled yarn comprising, in combination, a. a block, b. a bore therethrough going from side to side, c. an air introduction means substantially at right angles to the bore axis, and d. a yarn guide bore entering the texturizing bore at an acute angle to the bore.
Claim 2
Dependent Claim 55 words
An air jet apparatus for the production of entangled yarn comprising, in combination, a. a block, b. a bore therethrough going from side to side, c. an air introduction means substantially at right angles to the bore axis, and d. a yarn guide bore entering the texturizing bore at an acute angle to the bore.
Claim 3
Dependent Claim 18 words
An apparatus according to claim 1 in which air introduction orifice size is between 3/32 to 3/64 inch.
Claim 4
Dependent Claim 43 words
An apparatus according to claim 1 in which the angle of the yarn guide bore is sufficient to assure that the yarn rapidly moves up to the top of the bore and therefore the top of the air streams flowing through the bore.
Claim 5
Dependent Claim 43 words
An apparatus according to claim 2 in which the angle of the yarn guide bore is sufficient to assure that the yarn rapidly moves up to the top of the bore and therefore the top of the air stream flowing through the bore.
Claim 6
Dependent Claim 57 words
An apparatus according to claim 1 in which the free space in the yarn guide bore when yarns are passing therethrough is less than the cross-section of bore air outlets at either end of the texturizing bore, whereby the flow of air through both bore outlets is greater than the air flow through the yarn guide bore.
Claim 7
Dependent Claim 26 words
An apparatus according to claim 3 in which the angle of the yarn guide bore with respect to the bore axis is from 30° to 65°.
Claim 8
Dependent Claim 21 words
An apparatus according to claim 6 in which the angle of the yarn guide bore to bore axis is approximately 45°.

References Cited (Backward Citations)

US3302386A Cited
US3325872A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-10-05 1980-04-05 1980-10-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-10-05 1984-04-05 1984-10-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-10-05 1988-04-05 1988-10-05 $7700.00 Window Closed / Lapsed

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