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US3965663A Expired / Lapsed US ⏱️ 0.0 years remaining

Spun yarn

Assignee: KAMMGARNSPINNEREI BURGLEN
•
Filing: 1974-09-18
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Granted: 1976-06-29
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Expires: 1994-09-18
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Abstract

Abstract A spun yarn includes synthetic plastic staple fibers of at least three different titers. One of these titers is a medium titer which is within a range of about 6 microns of the average titer of the synthetic plastic fibers in the yarn. Another titer is a fine titer which is at most about 15 microns less than the average titer of the synthetic plastic fibers in the yarn. The third titer is a coarse titer which is at most about 15 microns in excess of the average titer of the synthetic plastic fibers in the yarn. The fibers of medium titer constitute a minimum of about two-thirds of the weight of the synthetic plastic fibers in the yarn. The selection of the titers in this manner enables a spun yarn of synthetic plastic fibers to be obtained which, to the touch, feels like a yarn made of natural fibers.

Inventors

  • 👤 Hans Goetti
  • 👤 Anton Mittler
  • 👤 Hermann Forrer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 10:51
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 134 words
As a novel article of manufacture, a spun yarn at least predominantly made from synthetic plastic staple fibers and having the touch of a yarn approximating that of a yarn made only of natural fibers, said synthetic plastic staple fibers of said spun yarn comprising synthetic plastic staple fibers of at least three different titers including a medium titer which is within a range of about 6 microns of the average titer of the synthetic plastic fibers in said yarn, a fine titer which is at most about 15 microns less than said average titer and a coarse titer which is at most about 15 microns in excess of said average titer, said fibers of medium titer constituting a minimum of about two-thirds of the weight of the synthetic plastic fibers in said yarn.
Claim 2
Dependent Claim 134 words
As a novel article of manufacture, a spun yarn at least predominantly made from synthetic plastic staple fibers and having the touch of a yarn approximating that of a yarn made only of natural fibers, said synthetic plastic staple fibers of said spun yarn comprising synthetic plastic staple fibers of at least three different titers including a medium titer which is within a range of about 6 microns of the average titer of the synthetic plastic fibers in said yarn, a fine titer which is at most about 15 microns less than said average titer and a coarse titer which is at most about 15 microns in excess of said average titer, said fibers of medium titer constituting a minimum of about two-thirds of the weight of the synthetic plastic fibers in said yarn.
Claim 3
Dependent Claim 19 words
An article as defined in claim 1, wherein said medium titer is from about 13 to about 22.75 microns.
Claim 4
Dependent Claim 17 words
An article as defined in claim 1, wherein the fibers of different titer have different staple lengths.
Claim 5
Dependent Claim 20 words
An article as defined in claim 1, wherein some of said fibers have different characteristics than other of said fibers.
Claim 6
Dependent Claim 19 words
An article as defined in claim 1; and further comprising natural fibers in combination with said synthetic plastic fibers.
Claim 7
Dependent Claim 15 words
An article as defined in claim 5, wherein said natural fibers are of plant origin.
Claim 8
Dependent Claim 15 words
An article as defined in claim 5, wherein said natural fibers are of animal origin.

References Cited (Backward Citations)

US2867077A Cited
US2965139A Cited
US3128507A Cited
US3251097A Cited
US3224181A Cited
US3412548A Cited
US3595721A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-06-29 1979-12-29 1980-06-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-06-29 1983-12-29 1984-06-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-06-29 1987-12-29 1988-06-29 $7700.00 Window Closed / Lapsed

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