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US4114549A Expired / Lapsed US ⏱️ 0.0 years remaining

Pile fabric

Assignee: Champion International Corp
•
Filing: 1977-06-07
•
Granted: 1978-09-19
•
Expires: 1997-06-07
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Abstract

Abstract A pile fabric, which may be used, for example, in carpets and in terry toweling, comprises a backing and a pile of plied yarns and singles yarns, each of the plied yarns consisting of two or more single yarns which are individually twisted by vortex jet air devices to form an alternating pattern of "S" twists and "Z" twists along their lengths. The singles yarns are joined at their nodes to form a plied yarn in which the spacing between the nodes may be selected to give an increased yarn bulk and with the singles yarns between the nodes false twisted in the same direction, the singles having either an "S" or a "Z" twist. The singles yarn between the fastened nodes are permitted to self-twist together in the opposite direction as the twist direction of the singles yarns, forming a stable self-twisted plied yarn.

Inventors

  • 👤 Phillip W. Chambley
  • 👤 Alan H. Norris

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 14:19
CPC Classifications
D; D05; D05C; D05C17/00; D05C17/02; D05C17/026; D02; D02G; D02G3/00; D02G3/22; D02G3/26; D02G3/28; D02G3/286; D02G3/44; D02G3/445

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 105 words
A pile fabric comprising a backing and a plurality of tufts protruding from said backing, a selected proportion of said tufts consisting of self-twist plied yarn, said self-twist plied yarn consisting of a plurality of false twisted singles yarns, each singles yarn having a repeating pattern along its length of S twist and Z twist and nodes therebetween, said singled yarns being fastened together at said nodes and having the same direction of twist between said nodes, said self-twisted plied yarn being self-twisted in opposite directions to said singles yarns, and the remainder of said tufts consisting of substantially untwisted singles yarn in unplied yarn.
Claim 2
Dependent Claim 105 words
A pile fabric comprising a backing and a plurality of tufts protruding from said backing, a selected proportion of said tufts consisting of self-twist plied yarn, said self-twist plied yarn consisting of a plurality of false twisted singles yarns, each singles yarn having a repeating pattern along its length of S twist and Z twist and nodes therebetween, said singled yarns being fastened together at said nodes and having the same direction of twist between said nodes, said self-twisted plied yarn being self-twisted in opposite directions to said singles yarns, and the remainder of said tufts consisting of substantially untwisted singles yarn in unplied yarn.
Claim 3
Dependent Claim 15 words
A pile fabric as recited in claim 1 wherein the fabric is a cut-pile carpet.
Claim 4
Dependent Claim 15 words
A pile fabric as recited in claim 1 wherein the fabric is a loop-pile carpet.
Claim 5
Dependent Claim 15 words
A pile fabric as recited in claim 1 wherein said fabric is a terry toweling.
Claim 6
Dependent Claim 16 words
A pile fabric as in claim 1 wherein said completed fabric is used as wall covering.
Claim 7
Dependent Claim 15 words
A pile fabric as in claim 1 wherein said fabric is used as furniture upholstery.
Claim 8
Dependent Claim 18 words
A pile fabric as in claim 1 wherein said tufts are a blend of artificial and natural fibers.
Claim 9
Dependent Claim 18 words
A pile fabric as in claim 2 wherein said tufts are a blend of artificial and natural fibers.
Claim 10
Dependent Claim 19 words
A pile fabric as recited in claim 3 wherein said tufts are a blend of artificial and natural fibers.

References Cited (Backward Citations)

US2961010A Cited
US3443370A Cited
US3434275A Cited
US3775955A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-09-18 1982-03-20 1982-09-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-09-18 1986-03-20 1986-09-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-09-18 1990-03-20 1990-09-19 $7700.00 Window Closed / Lapsed

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