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US3098369A Expired / Lapsed US ⏱️ 0.0 years remaining

Compressive stocking

Assignee: Burlington Industries Inc
•
Filing: 1961-12-01
•
Granted: 1963-07-23
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Expires: 1981-12-01
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Abstract

Abstract 959,627. Knitting. BURLINGTON INDUSTRIES Inc. Oct. 2, 1962 [Dec. 1, 1961, No. 37401/62. Heading D1K. Bare elastomeric polyurethane yarn is knitted into alternate courses of a compressive fabric with nylon body yarn of lighter weight than that forming the intervening courses, the polyurethane yarn being substantially embedded in the fabric. The polyurethane yarn which is non-foamed and may be mono- or multi-filament may be knitted circularly e.g. on a two or four feed machine. As shown the welt of stocking S is knitted at two feeders from two ends of 40 denier filament crimped or textured nylon yarn and the shadow welt 12 with two ends of 40 denier texturised yarn. When knitting the leg portion 14 the main feed supplies 40 denier raw nylon yarn (courses 22, 24, Fig. 2,) and the auxiliary station supplies 20 denier raw nylon yarn 26 and a bare 70 denier elastomeric polyurathane yarn 28 stretched approximately 225%. Alternatively, one feed may supply 50 denier raw nylon yarn while the other feed supplies either 30 denier raw nylon yarn and 70 denier polyurethane yarn or 20 denier raw nylon yarn and 140 denier polyurethane yarn. The ankle may be shaped by increasing the tension in the nylon yarn without altering the tension in the polyurethane yarn.

Inventors

  • 👤 Burleson Aaron
  • 👤 Holmes Mark Nicholas

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 15:44
CPC Classifications
D; D04; D04B; D04B1/00; D04B1/22; D04B1/24; D04B1/26; D04B1/265

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 91 words
A KNIT COMPRESSIVE STOCKING KNIT THROUGHOUT AT LEAST THE LEG PORTION THEREOF WITH NYLON BODY YARN, SAID PORTION HAVING BARE ELASTOMERIC POLYURETHANE YARN KNITTED IN ALTERNATE COURSES TO GIVE COMPRESSIVE SUPPORT IN THE LONGITUDINAL AND COURSEWISE DIRECTIOMS, SAID POLYURETHANE YARN BEING EMBEDDED IN THE FABRIC SO THAT THE YARN EXPOSED AT THE SURFACE IS PREDOMINANTLY NYLON, THE BODY YARN IN THE SAME COURSES WITH THE POLYURETHANE YARN BEING LIGHTER IN WEIGHT THAN THE BODY YARN IN THE INTERVENING COURSES, WHEREBY THE APPEARANCE OF THE FABRIC APPROXIMATES THAT OF A NYLON FABRIC.
Claim 2
Dependent Claim 91 words
A KNIT COMPRESSIVE STOCKING KNIT THROUGHOUT AT LEAST THE LEG PORTION THEREOF WITH NYLON BODY YARN, SAID PORTION HAVING BARE ELASTOMERIC POLYURETHANE YARN KNITTED IN ALTERNATE COURSES TO GIVE COMPRESSIVE SUPPORT IN THE LONGITUDINAL AND COURSEWISE DIRECTIOMS, SAID POLYURETHANE YARN BEING EMBEDDED IN THE FABRIC SO THAT THE YARN EXPOSED AT THE SURFACE IS PREDOMINANTLY NYLON, THE BODY YARN IN THE SAME COURSES WITH THE POLYURETHANE YARN BEING LIGHTER IN WEIGHT THAN THE BODY YARN IN THE INTERVENING COURSES, WHEREBY THE APPEARANCE OF THE FABRIC APPROXIMATES THAT OF A NYLON FABRIC.

References Cited (Backward Citations)

US2430860A Cited
US2396166A Cited
US3016726A Cited
US2949023A Cited
US2962885A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1966-07-22 1967-01-21 1967-07-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1970-07-22 1971-01-21 1971-07-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1974-07-22 1975-01-21 1975-07-23 $7700.00 Window Closed / Lapsed

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