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US3651630A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for production of mouline yarns

Assignee: Glanzstoff AG
•
Filing: 1969-05-23
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Granted: 1972-03-28
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Expires: 1989-05-23
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Abstract

Abstract Process and apparatus for the production of repeatedly compressed mouline carpet yarns in which the yarn is guided through a compression crimping chamber and then corded with guiding each of the yarns under identical conditions through large angle which is the same for each of the yarns.

Inventors

  • 👤 Hermann Gemeinhardt

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 08:20
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/12; D01; D01H; D01H1/00; D01H2700/00; D01H2700/24

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 233 words
An apparatus for the production of mouline yarn comprising guide means adapted to guide individual yarns for the mouline yarn parallel to one another without any gaps between the individual yarns; a compression crimping chamber; yarn separating means for separating the yarns after they leave the compression crimping chamber; yarn delivery means; means for guiding the yarns at a distance of at least 3 mm. apart from one another through the delivery means; a cording station formed by a cording polygon having an apexial yarn feed guide and a plurality of yarn guides corresponding in number to the number of individual filaments or an integral multiple thereof, the latter yarn guides being arranged at the vertices of a horizontal equilateral polygon; a yarn balloon guide positioned below the horizontal plane of said equilateral polygon and vertically aligned with the center of the equilateral polygon; a ring twisting spindle with its ring symmetrically positioned beneath the collecting yarn guide; means for reciprocating said ring up and down; and further means for reciprocating said yarn balloon guide up and down in synchronism with said ring of said ring twist spindle but with a shorter stroke, said stroke keeping said yarn balloon guide at a minimum vertical distance from the plane of said horizontal equilateral polygon of 0.8 times the vertical distance between said apexial yarn feed guide and said plane of said horizontal equilateral polygon.
Claim 2
Independent Claim 233 words
An apparatus for the production of mouline yarn comprising guide means adapted to guide individual yarns for the mouline yarn parallel to one another without any gaps between the individual yarns; a compression crimping chamber; yarn separating means for separating the yarns after they leave the compression crimping chamber; yarn delivery means; means for guiding the yarns at a distance of at least 3 mm. apart from one another through the delivery means; a cording station formed by a cording polygon having an apexial yarn feed guide and a plurality of yarn guides corresponding in number to the number of individual filaments or an integral multiple thereof, the latter yarn guides being arranged at the vertices of a horizontal equilateral polygon; a yarn balloon guide positioned below the horizontal plane of said equilateral polygon and vertically aligned with the center of the equilateral polygon; a ring twisting spindle with its ring symmetrically positioned beneath the collecting yarn guide; means for reciprocating said ring up and down; and further means for reciprocating said yarn balloon guide up and down in synchronism with said ring of said ring twist spindle but with a shorter stroke, said stroke keeping said yarn balloon guide at a minimum vertical distance from the plane of said horizontal equilateral polygon of 0.8 times the vertical distance between said apexial yarn feed guide and said plane of said horizontal equilateral polygon.
Claim 3
Dependent Claim 26 words
An apparatus as claimed in claim 1, wherein the compression crimping chamber includes two take-in rollers, at least one of which has a hollow-ground roller surface.
Claim 4
Dependent Claim 26 words
An apparatus as claimed in claim 1 wherein the yarn separating means is in the form of a yarn comb positioned after the compression crimping chamber.
Claim 5
Dependent Claim 56 words
An apparatus as claimed in claim 1, wherein at least one of the take-in rollers of the compression crimping chamber has a hollow ground roller surface which commences at from 0.5 to 1 mm. from the edges of the roller and reaches a depth of from 0.008 to 0.06 mm. in the middle of the roller.
Claim 6
Dependent Claim 21 words
An apparatus as claimed in claim 4, wherein the depth of the hollow ground portion is from 0.01 to 0.03 mm.
Claim 7
Dependent Claim 24 words
An apparatus as claimed in claim 4, wherein the roller surface of one of the two rollers is hollow-ground and the other is plane-ground.
Claim 8
Dependent Claim 40 words
An apparatus as claimed in claim 1, wherein both take-in rollers of the compression crimping chamber has a flat groove which begins 0.5 to 1 mm. from the edges of the roller and is from 0.008 to 0.06 mm. deep.
Claim 9
Dependent Claim 20 words
An apparatus as claimed in claim 7, wherein the depth of the groove is from 0.01 to 0.03 mm. deep.
Claim 10
Dependent Claim 48 words
An apparatus as claimed in claim 1, wherein the height of the pyramid defined by the base formed by the said plurality of yarn guides, the collecting yarn guide and the yarns travelling through, is from 0.2 to 2.0 times the diameter of a circle circumscribing the base.
Claim 11
Dependent Claim 27 words
An apparatus as claimed in claim 9, wherein the height of the pyramid is from 0.8 to 1.6 times the diameter of the circle circumscribing the base.

References Cited (Backward Citations)

US3164882A Cited
US2882675A Cited
US3065519A Cited
US3218675A Cited
US3238591A Cited
US3255507A Cited
US3382657A Cited
US3479810A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-03-28 1975-09-27 1976-03-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-03-28 1979-09-27 1980-03-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-03-28 1983-09-27 1984-03-28 $7700.00 Window Closed / Lapsed

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