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US2509347A Expired / Lapsed US ⏱️ 0.0 years remaining

Process of making permanently set hard twist wool yarn

Assignee: Bigelow Sanford Carpet Co Inc
•
Filing: 1947-08-09
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Granted: 1950-05-30
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Expires: 1967-08-09
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Abstract

No abstract record available.

Inventors

  • 👤 Robert J Jackson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 06:12
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/02

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 162 words
THE PROCESS FOR PRODUCING HARD TWISTED WOOL YARN, ADAPTED TO BE WOVEN AS THE PILE IN A PILE FABRIC, WHICH CONSISTS ESSENTIALLY IN HARD TWISTING A WOOL YARN IN ONE DIRECTION ONLY, REELING THE TWISTED YARN INTO SKEINS, RELAXING THE TENSION IN SAID YARN TO CAUSE KINKS AT INTERVALS, WETTING THE SKEINS OF YARN, SETTING THE TWIST AND KINKS IN SAID YARN BY SUBJECTING THE SKEINS OF WET YARN WHILE IN A RELAXED TENSIONLESS KINKY CONDITION TO A STEAMING TREATMENT WITH SATURATED STEAM AT A PRESSURE OF AT LEAST FIVE POUNDS AND NOT OVER FORTY POUNDS PER SQUARE INCH FOR SUCH A TIME THAT THE SEVERITY OF THE STEAMING TREATMENT DOES NOT EXCEED THAT REPRESENTED BY TREATMENT FOR 30 MINUTES AT 40 POUNDS PER SQUARE INCH PRESSURE, AND DRYING THE SKEINS OF YARN IN A TENSIONLESS KINKY CONDITION, WHEREBY THE COMPLETED YARN HAS KINKS AT INTERVALS WHEN RELAXED AND IS PERMANENTLY SET AND RESISTANT TO UNTWISTING AND TO TWISTING IN EITHER DIRECTION.
Claim 2
Dependent Claim 162 words
THE PROCESS FOR PRODUCING HARD TWISTED WOOL YARN, ADAPTED TO BE WOVEN AS THE PILE IN A PILE FABRIC, WHICH CONSISTS ESSENTIALLY IN HARD TWISTING A WOOL YARN IN ONE DIRECTION ONLY, REELING THE TWISTED YARN INTO SKEINS, RELAXING THE TENSION IN SAID YARN TO CAUSE KINKS AT INTERVALS, WETTING THE SKEINS OF YARN, SETTING THE TWIST AND KINKS IN SAID YARN BY SUBJECTING THE SKEINS OF WET YARN WHILE IN A RELAXED TENSIONLESS KINKY CONDITION TO A STEAMING TREATMENT WITH SATURATED STEAM AT A PRESSURE OF AT LEAST FIVE POUNDS AND NOT OVER FORTY POUNDS PER SQUARE INCH FOR SUCH A TIME THAT THE SEVERITY OF THE STEAMING TREATMENT DOES NOT EXCEED THAT REPRESENTED BY TREATMENT FOR 30 MINUTES AT 40 POUNDS PER SQUARE INCH PRESSURE, AND DRYING THE SKEINS OF YARN IN A TENSIONLESS KINKY CONDITION, WHEREBY THE COMPLETED YARN HAS KINKS AT INTERVALS WHEN RELAXED AND IS PERMANENTLY SET AND RESISTANT TO UNTWISTING AND TO TWISTING IN EITHER DIRECTION.

References Cited (Backward Citations)

US886886A Cited
US2127638A Cited
US2370112A Cited
US2421335A Cited
US2430425A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1953-05-29 1953-11-28 1954-05-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1957-05-29 1957-11-28 1958-05-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1961-05-29 1961-11-28 1962-05-30 $7700.00 Window Closed / Lapsed

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