US3673820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Warp knit panty-type garments
Assignee: INTERN STRETCH PRODUCTS Inc
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Filing: 1970-03-20
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Granted: 1972-07-04
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Expires: 1990-03-20
Abstract
Abstract The invention is directed to a combination fabric of warp knit construction (as distinguished from circular knit, woven, etc.) which is comprised of a body portion having two-way effective elasticity, and integrally knitted, spaced selvedge portions having one-way effective elasticity. The fabric is constructed in a continuous web form, with the elastic selvedges forming the opposite edges of the web. The selvedges are constructed principally of yarns having substantially heavier denier than the yarns principally constituting the body portion. The elastic selvedge portions are constructed to have lateral running yarns imparting the characteristic of substantial non-extensibility to the selvedge portion in the course-wise direction of the fabric. The lateral running yarns of the selvedge are, in addition, of substantially heavier denier than the warp-wise running yarns of the selvedge, to impart substantial wall rigidity to the selvedge portions, in the course-wise direction, while providing a high degree of flexibility in the warp-wise direction. The body portion of the fabric may be constructed entirely or partly of elastic yarns, or may derive its effective elastic characteristics solely from the knitted construction of the fabric. The fabric of the invention is especially adapted for use in the manufacture of one- or two-piece garments, such as panties or panty girdles.
Inventors
- 👤 Louis Sarmiento
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:03
CPC Classifications
D; D04; D04B; D04B21/00; D04B21/20; D04B21/207; A; A41; A41B; A41B17/00; A41B9/00; A41B9/04; D10; D10B; D10B2501/00; D10B2501/02; D10B2501/021
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
244 words
A warp knit combination garment fabric, comprising a. a unidirectionally elastic selvedge portion extending along each edge of the fabric web, b. said unidirectionally elastic selvedge comprising a plurality of knitted warp columns interconnected by lateral running yarns, c. said knitted warp columns incorporating elastic yarns, laidin in a single needle space, to impart warp-wise elasticity to the selvedges, d. said lateral running yarns being laid-in across a plurality of needle spaces and being comprised of heavy, effectively nonelastic yarns whereby to impart non-extensibility to the selvedge portions in the widthwise direction and to impart substantial wall stability to the selvedge portions as compared to the body portions of the fabric, and e. a fabric body portion integrally interconnected to said selvedge portions, f. said body portion being constructed to have effective elasticity in the warp-wise and course-wise directions, g. the principal structural yarns of said elastic selvedge portions being non-elastic and being of substantially heavier denier than the principal structural yarns of said body portion, h. one of said elastic selvedges constituting a garment waistband portion, i. the elastic yarns of said one selvedge being constructed into the fabric while extended to about 220 percent to about 280 percent of their relaxed length, j. the other of said elastic selvedges constituting a garment leg band portion, k. the elastic yarns of said other selvedge being constructed into the fabric while extended to about 200 percent to about 280 percent of their relaxed length.
Claim 2
Dependent Claim
244 words
A warp knit combination garment fabric, comprising a. a unidirectionally elastic selvedge portion extending along each edge of the fabric web, b. said unidirectionally elastic selvedge comprising a plurality of knitted warp columns interconnected by lateral running yarns, c. said knitted warp columns incorporating elastic yarns, laidin in a single needle space, to impart warp-wise elasticity to the selvedges, d. said lateral running yarns being laid-in across a plurality of needle spaces and being comprised of heavy, effectively nonelastic yarns whereby to impart non-extensibility to the selvedge portions in the widthwise direction and to impart substantial wall stability to the selvedge portions as compared to the body portions of the fabric, and e. a fabric body portion integrally interconnected to said selvedge portions, f. said body portion being constructed to have effective elasticity in the warp-wise and course-wise directions, g. the principal structural yarns of said elastic selvedge portions being non-elastic and being of substantially heavier denier than the principal structural yarns of said body portion, h. one of said elastic selvedges constituting a garment waistband portion, i. the elastic yarns of said one selvedge being constructed into the fabric while extended to about 220 percent to about 280 percent of their relaxed length, j. the other of said elastic selvedges constituting a garment leg band portion, k. the elastic yarns of said other selvedge being constructed into the fabric while extended to about 200 percent to about 280 percent of their relaxed length.
Claim 3
Dependent Claim
67 words
A one-piece panty or the like constructed with the fabric of claim 1, characterized by a. the garment being constructed of a single section of such fabric, cut and sewn together in a course-wise direction whereby the separate selvedges respectively form waistband and leg band elastics, and b. said leg band elastics being sewn together in a crotch area of the garment to form separate leg-encircling elastics.
Claim 4
Dependent Claim
34 words
The warp knit fabric of claim 1, further characterized by a. the supporting structure of the fabric body portion being of a wholly independent stitch construction from the supporting structure of the elastic selvedges.
Claim 5
Dependent Claim
39 words
The warp knit fabric of claim 1, further characterized by a. the warp-wise extending structural yarns of the elastic selvedge portions being at least 50 percent heavier than the structural yarns of which the body portion is principally constituted.
Claim 6
Dependent Claim
23 words
The warp knit combination fabric of claim 1, further characterized by a. said elastic yarns comprise rubber-like elastic elements of about 50 gage.
Claim 7
Dependent Claim
57 words
The warp knit combination fabric of claim 1, further characterized by a. the lateral running yarns of said selvedge portions being of substantially heavier denier than the yarns of the warp columns of said selvedge, and b. the principal structural yarns of said body portion being of substantially lighter denier than the yarns of said warp columns.
Claim 8
Dependent Claim
162 words
The warp knit combination fabric of claim 1, adapted especially for the manufacture of one-piece panties or the like and in which the body portion of the fabric is substantially free of elastic yarns, further characterized by a. said fabric being constructed with the elastic yarns of the selvedge portions in a sufficiently extended condition that the warp-wise relaxation of said selvedge portions, upon warp-wise relaxation of the fabric after construction, is substantially greater than the warp-wise relaxation of said body portion, b. said fabric being laterally distended subsequent to its construction to a degree sufficient to reduce the length of said body portion substantially to the relaxed length of said selvedge portions, and c. at least the body portion of said fabric being at least temporarily stabilized in its laterally distended condition to enable cutting of the fabric across its width and sewing of the fabric into a one-piece garment while said fabric body portion remains in its laterally distended condition.
Claim 9
Dependent Claim
51 words
The warp knit combination fabric of claim 1, further characterized by a. an integrally knitted section of fishnet-like structure extending in a warp-wise direction and interconnecting one of said selvedges to the body portion of said fabric to accommodate a limited degree relative movement between said selvedge and said body portions.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |