US3889494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stocking with compensated knee pressure
Assignee: Kendall Co
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Filing: 1973-04-12
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Granted: 1975-06-17
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Expires: 1993-04-12
Abstract
Abstract A full length stocking of knitted fabric including elastomeric yarn which in the boot portion exerts a compressive effect on the wearer''s leg normally gradually decreasing from the ankle to a point well above the knee, that improvement wherein, in the knee area, the compressive effect is reduced to provide an area of reduced but still substantial pressure support in the zone including the knee to a level of pressure, preferably, of less than about 10 mm of mercury and less than the pressure below the knee area, preferably 20 to 80 percent thereof, so that a reduced pressure is exerted on the knee area to avoid restricting pressures on the veins in the sensitive popliteal space, the compressive pressure being increased again above the knee area and thereafter gradually being decreased to the top of the stocking boot. The stocking may be circularly knit, fullfashioned knit, or cut and sewn from a variety of fabrics including powernet, jersey knit with elastomeric inlay, jersey knit with alternating courses of knit and float elastomeric yarn, and all jersey knit with alternating courses of elastomeric yarn. Optional features include an automatic toe-inspection welt, a garter type top and a thigh enlarging insert.
Inventors
- 👤 Donald Patience
- 👤 Edward G Hartigan
- 👤 Herbert Knohl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:55
CPC Classifications
D; D04; D04B; D04B1/00; D04B1/14; D04B1/18; D04B1/22; D04B1/24; D04B1/26; D04B1/265
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
133 words
In a properly fitted full length stocking including a boot portion, said stocking being of knitted fabric including elastomeric yarn which in said boot portion exerts a compressIve pressure on the wearer''s leg normally gradually decreasing from the ankle to a point well above the knee, that improvement wherein in the knee area the compressive pressure is reduced to provide an area of reduced but still substantial pressure support in the zone including the knee to a level of pressure less than the pressure below the knee area so that a reduced pressure is exerted on the knee area to avoid restricting pressures on the veins in the sensitive popliteal space, the compressive pressure being increased again above the knee area and thereafter gradually being decreased to the top of the stocking boot.
Claim 2
Dependent Claim
133 words
In a properly fitted full length stocking including a boot portion, said stocking being of knitted fabric including elastomeric yarn which in said boot portion exerts a compressIve pressure on the wearer''s leg normally gradually decreasing from the ankle to a point well above the knee, that improvement wherein in the knee area the compressive pressure is reduced to provide an area of reduced but still substantial pressure support in the zone including the knee to a level of pressure less than the pressure below the knee area so that a reduced pressure is exerted on the knee area to avoid restricting pressures on the veins in the sensitive popliteal space, the compressive pressure being increased again above the knee area and thereafter gradually being decreased to the top of the stocking boot.
Claim 3
Dependent Claim
39 words
The stocking of claim 1 wherein the knitted fabric of the boot portion is knitted of jersey stitches of non-elastomeric yarn such as nylon, cotton, silk, polypropylene or rayon, and the elastomeric yarn is inlaid in the knitted stitches.
Claim 4
Dependent Claim
31 words
The stocking of claim 1 wherein the knitted fabric of the boot portion includes courses of jersey stitches of non-elastomeric yarn alternating with courses of jersey stitches of covered elastomeric yarn.
Claim 5
Dependent Claim
57 words
The stocking of claim 1 wherein the knitted fabric of the boot portion is knitted of courses of jersey stitches of non-elastomeric yarn alternating with courses of covered elastomeric yarn knitted of jersey stitches and floats in alternating order, nearest adjacent of said knit and float courses having the floats across different wales of said knitted fabric.
Claim 6
Dependent Claim
135 words
In a properly fitted full length stocking including a boot portion, said stocking being of knitted fabric including elastomeric yarn which in said boot portion exerts a compressive pressure on the wearer''s legs normally gradually decreasing from the ankle to a point well above the knee, that improvement wherein in the knee area the compressive pressure is reduced to provide an area of reduced but still substantial pressure support in the zone including the knee to a level of pressure 20 to 80 percent of the pressure below the knee area so a reduced pressure is exerted on the knee area to avoid restricting pressures on the veins in the sensitive popliteal space, the compressive pressure being increased again above the knee area and thereafter gradually being decreased to the top of the stocking boot.
Claim 7
Dependent Claim
135 words
In a properly fitted full length stocking including a boot portion, said stocking being of knitted fabric including elastomeric yarn which in said boot portion exerts a compressive pressure on the wearer''s legs normally gradually decreasing from the ankle to a point well above the knee, that improvement wherein in the knee area the compressive pressure is reduced to provide an area of reduced but still substantial pressure support in the zone including the knee to a level of pressure 20 to 80 percent of the pressure below the knee area so a reduced pressure is exerted on the knee area to avoid restricting pressures on the veins in the sensitive popliteal space, the compressive pressure being increased again above the knee area and thereafter gradually being decreased to the top of the stocking boot.
Claim 8
Dependent Claim
48 words
In a stocking as claimed in claim 5, wherein in the knee area the compressive effect is reduced to provide an area of reduced but still substantial pressure support in the zone including the knee to a level of pressure of less than about 10 mm of mercury.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-16 | 1978-12-16 | 1979-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-16 | 1982-12-16 | 1983-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-16 | 1986-12-16 | 1987-06-17 | $7700.00 | Window Closed / Lapsed |