US4240160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cut and sewn surgical stockings
Assignee: Hoffmann La Roche Inc
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Filing: 1978-12-26
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Granted: 1980-12-23
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Expires: 1998-12-26
Abstract
Abstract A method of manufacturing support garments for human extremities, and the garments so produced. A support garment form is cut from a sheet of warp-knit power fabric, the fabric having a lengthwise (machine) dimension of greatest stretch and power, and a filling dimension (the cross-machine direction) in which the stretch is incidental (i.e., about 250%/80% or at least 2/1) and the sheet being orientated during cutting so that the lengthwise dimension of the sheet extends circumferentially in the final garment produced. The edges of the garment formed are seamed to produce the final support garment, the seam extending along the dimension of elongation of the extremity on which the support garment fits. The garment is preferably dimensioned so that the compression provided by the garment is greatest at the portion of the garment disposed most remote from the human torso along the human extremity on which it is disposed, the compression continuously gradually decreasing from the most remote portion of the extremity toward the torso. Tricot and raschel warp-knit power fabrics are preferred.
Inventors
- 👤 Walter H. Imboden
- 👤 David M. Lieberman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:29
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/06; A61F13/08
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
135 words
A method of manufacturing support garments for elongated extremities comprising the steps of: (a) providing a sheet of warp-knit power fabric, the fabric having a lengthwise dimension of greatest stretch and power and a filling dimension in which the stretch is incidental so that desired stretch graduations can be maintained at predetermined longitudinal intervals during use; (b) cutting out of the sheet a support garment form, the sheet being oriented during cutting so that the lengthwise dimension of the sheet extends circumferentially in the final garment produced and so that the filling dimension extends longitudinally in the final garment produced; and (c) seaming the edges of the garment form to produce the final support garment, the seam extending along the dimension of elongation of the extremity on which the support garment is adapted to fit.
Claim 2
Independent Claim
135 words
A method of manufacturing support garments for elongated extremities comprising the steps of: (a) providing a sheet of warp-knit power fabric, the fabric having a lengthwise dimension of greatest stretch and power and a filling dimension in which the stretch is incidental so that desired stretch graduations can be maintained at predetermined longitudinal intervals during use; (b) cutting out of the sheet a support garment form, the sheet being oriented during cutting so that the lengthwise dimension of the sheet extends circumferentially in the final garment produced and so that the filling dimension extends longitudinally in the final garment produced; and (c) seaming the edges of the garment form to produce the final support garment, the seam extending along the dimension of elongation of the extremity on which the support garment is adapted to fit.
Claim 3
Dependent Claim
63 words
A method as recited in claim 1, wherein said cutting step is practiced so that the compression provided by the garment is maximal at the portion thereof adapted to be most remote from the torso along the human extremity on which it is adapted to be disposed, and the compression gradually, accurately and predictably continuously decreases proximally along the extremity toward the torso.
Claim 4
Dependent Claim
22 words
A method as recited in claim 1, wherein said cutting step is practiced while said sheet is disposed as a flat development.
Claim 5
Dependent Claim
19 words
A method as recited in claim 1, wherein said cutting step is practiced while said sheet is doubled over.
Claim 6
Dependent Claim
16 words
A method as recited in claim 4, wherein said cutting and seaming steps are practiced simultaneously.
Claim 7
Dependent Claim
81 words
A method as recited in claim 1, wherein said support garment is a support stocking having an open toe, said method comprising the further step of measuring the leg on which the stocking is to be disposed, and the cutting step being practiced based on the results of said measuring step, so that the ankle portions of the stocking provide maximal compression, and the compression gradually continuously decreases upwardly to the thigh portion of the garment, whereat the compression is minimal.
Claim 8
Dependent Claim
118 words
A support garment for an elongated extremity, the garment comprising a tube, having a circumference and a length, of warp-knit power fabric conforming in shape to the extremity on which it is adapted to be disposed, the fabric tube having a circumferential dimension of greatest stretch and power and a lengthwise dimension in which the stretch is incidental so that desired stretch graduations can be maintained at predetermined longitudinal intervals during use; and a seam formed along the length of the tube in the direction of elongation of the extremity on which it is adapted to be disposed, the seam extending along the dimension of elongation of the extremity on which the support garment is adapted to fit.
Claim 9
Dependent Claim
118 words
A support garment for an elongated extremity, the garment comprising a tube, having a circumference and a length, of warp-knit power fabric conforming in shape to the extremity on which it is adapted to be disposed, the fabric tube having a circumferential dimension of greatest stretch and power and a lengthwise dimension in which the stretch is incidental so that desired stretch graduations can be maintained at predetermined longitudinal intervals during use; and a seam formed along the length of the tube in the direction of elongation of the extremity on which it is adapted to be disposed, the seam extending along the dimension of elongation of the extremity on which the support garment is adapted to fit.
Claim 10
Dependent Claim
18 words
A garment as recited in claim 7, wherein the power yarn of the warp-knit power fabric is spandex.
Claim 11
Dependent Claim
56 words
A garment as recited in claim 7, wherein said garment is a support stocking having an open toe, and wherein said garment is dimensioned so that the compression provided by said garment is maximal at the ankle portion thereof and continuously decreases gradually up to the thigh portion thereof at which point the compression is minimal.
Claim 12
Dependent Claim
14 words
A garment as recited in claim 7, wherein said seam is a flat seam.
Claim 13
Dependent Claim
15 words
A garment as recited in claim 7, wherein said warp-knit power fabric is a tricot.
Claim 14
Dependent Claim
15 words
A garment as recited in claim 7, wherein said warp-knit power fabric is a raschel.
Claim 15
Dependent Claim
57 words
A garment as recited in claim 7, wherein said garment is dimensioned so that the compression provided by said garment is maximal at the portion thereof adapted to be most remote from the torso along the extremity on which it is adapted to be disposed, the compression continuously gradually decreasing proximally along the extremity toward the torso.
Claim 16
Dependent Claim
26 words
A garment as recited in claim 7, wherein the power yarn of said warp-knit power fabric exerts a force of approximately 4.5 g at 100% elongation.
Claim 17
Dependent Claim
29 words
A garment as recited in claim 7, wherein the fabric stretch in the circumferential dimension is about 250% and the fabric stretch in the lengthwise dimension is about 80%.
Claim 18
Dependent Claim
30 words
A garment as recited in claim 7, wherein the fabric stretch in the circumferential dimension is at least about twice as great as the fabric stretch in the lengthwise dimension.
Claim 19
Dependent Claim
24 words
A garment as recited in claim 7, wherein the fabric has a closed stitch construction, having the characteristics of jersey in the relaxed state.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-23 | 1984-06-23 | 1984-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-23 | 1988-06-23 | 1988-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-23 | 1992-06-23 | 1992-12-23 | $7700.00 | Window Closed / Lapsed |