US4695500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized fabric
Assignee: Ethicon Inc
•
Filing: 1986-07-10
•
Granted: 1987-09-22
•
Expires: 2006-07-10
Abstract
Abstract A loosely constructed knit or woven fabric is dimensionally stabilized by causing staple length textile fibers to be entangled about the intersections of the yarns comprising the fabric. The stabilized fabric is formed by covering one or both sides of the loosely constructed base fabric with a light web of the staple length fibers, and subjecting the composite material to hydraulic entanglement while supported on a porous forming belt configured to direct and concentrate the staple length fibers at the intersections of the yarns comprising the base fabric.
Inventors
- 👤 John Dyer
- 👤 John W. Kennette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:25
CPC Classifications
D; D03; D03D; D03D15/00; D03D15/40; D03D15/49; A; A61; A61F; A61F13/00; A61F13/15; A61F13/20; D03D15/20; D03D15/208; D03D15/225; D03D9/00; D04; D04H; D04H1/00; D04H1/40; D04H1/44; D04H1/46; D04H1/492; D04H1/498; A61F13/53; A61F2013/530007; D10; D10B; D10B2201/00; D10B2201/20; D10B2201/22; D10B2201/24; D10B2509/00; D10B2509/02; D10B2509/022; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24298; Y10T428/24628; Y10T428/24669; Y10T428/24736; Y10T428/24802; Y10T428/2481; Y10T428/24818; Y10T428/249921; Y10T428/249953; Y10T428/249955; Y10T428/249986; Y10T442/00; Y10T442/30; Y10T442/3707; Y10T442/3772
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
104 words
A stabilized fabric comprising a loosely woven component and a staple fiber component, said woven component comprising a plurality of substantially parallel, spaced apart warp yarns intersecting at right angles with a plurality of substantially parallel spaced apart fill yarns, said warp and fill yarns defining a plurality of openings in said woven component, said staple fiber component comprising staple length fibers entangled about said warp and fill yarns without completely encasing said woven component, said staple fibers substantially anchoring said warp and fill yarns at the intersections thereof, said stabilized fabric maintaining a plurality of openings defined by said warp and fill yarns.
Claim 2
Dependent Claim
104 words
A stabilized fabric comprising a loosely woven component and a staple fiber component, said woven component comprising a plurality of substantially parallel, spaced apart warp yarns intersecting at right angles with a plurality of substantially parallel spaced apart fill yarns, said warp and fill yarns defining a plurality of openings in said woven component, said staple fiber component comprising staple length fibers entangled about said warp and fill yarns without completely encasing said woven component, said staple fibers substantially anchoring said warp and fill yarns at the intersections thereof, said stabilized fabric maintaining a plurality of openings defined by said warp and fill yarns.
Claim 3
Dependent Claim
26 words
The fabric of claim 1 wherein each of said warp yarns and said fill yarns are spaced to provide from 2 to 30 yarns per inch.
Claim 4
Dependent Claim
17 words
The fabric of claim 1 wherein said staple fibers are from 0.5 to 3.0 inches in length.
Claim 5
Dependent Claim
22 words
The fabric of claim 1 wherein said staple length fibers comprise from 10 to 70 percent by weight of the stabilized fabric.
Claim 6
Dependent Claim
13 words
The fabric of claim 1 wherein said woven component comprises a surgical gauze.
Claim 7
Dependent Claim
24 words
The fabric of claim 5 wherein said surgical gauze has from 10 to 20 warp yarns and 6 to 12 fill yarns per inch.
Claim 8
Dependent Claim
20 words
The fabric of claim 6 wherein said gauze has a basis weight of from about 0.1 oz/yd to 2.0 oz/yd.
Claim 9
Dependent Claim
22 words
The fabric of claim 5 wherein said fibrous component comprises rayon staple fibers having a length of from 0.5 to 2.0 inches.
Claim 10
Dependent Claim
31 words
The fabric of claim 8 wherein said fill yarns are substantially totally encased by said staple fibers and said warp yarns are substantially uncovered except where intersecting with said fill yarns.
Claim 11
Dependent Claim
37 words
The fabric of claim 1 wherein said woven component comprises surgical gauze having 14×8 yarns per inch, and said fibrous component comprises rayon staple fibers constituting from 10 to 70 percent by weight of the stabilized fabric.
Claim 12
Dependent Claim
19 words
The fabric of claim 10 wherein said rayon staple fibers are substantially 1.5 denier and 1.25 inches in length.
Claim 13
Dependent Claim
38 words
The fabric of claim 1 wherein said woven component comprises surgical gauze having 20×8 yarns per inch, and said fibrous component comprises rayon staple fibers and constituting from 10 to 70 percent by weight of the stabilized fabric.
Claim 14
Dependent Claim
19 words
The fabric of claim 12 wherein said rayon staple fibers are substantially 1.5 denier and 1.25 inches in length.
Claim 15
Dependent Claim
106 words
A stabilized surgical gauze comprising a woven fabric component and a staple fiber component, said woven component comprising warp and fill yarns and having from 6 to 12 yarns per inch in one direction and from 10 to 20 yarns per inch in the other direction, whereby said intersecting yarns define a plurality of openings in said woven fabric component, said staple fiber component comprising staple length fibers, entangled about said yarns at the intersections thereof without completely encasing said fabric, said staple length fibers substantially anchoring said yarns at the intersections thereof, whereby said woven fabric is physically stabilized against relative displacement of said yarns.
Claim 16
Dependent Claim
106 words
A stabilized surgical gauze comprising a woven fabric component and a staple fiber component, said woven component comprising warp and fill yarns and having from 6 to 12 yarns per inch in one direction and from 10 to 20 yarns per inch in the other direction, whereby said intersecting yarns define a plurality of openings in said woven fabric component, said staple fiber component comprising staple length fibers, entangled about said yarns at the intersections thereof without completely encasing said fabric, said staple length fibers substantially anchoring said yarns at the intersections thereof, whereby said woven fabric is physically stabilized against relative displacement of said yarns.
Claim 17
Dependent Claim
32 words
The surgical gauze of claim 14 wherein the woven component comprises 14×8 yarns per inch, and the staple fiber component comprises from 10 to 70 percent by weight of the stabilized gauze.
Claim 18
Dependent Claim
32 words
The surgical gauze of claim 15 wherein said staple fiber component comprises rayon fiber having a staple length of from 0.5 to 2.0 inches and a denier of from 1.0 to 3.0.
Claim 19
Dependent Claim
40 words
The surgical gauze of claim 15 wherein a major portion of the yarns extending in one direction are encased by the staple length filaments while a major portion of the yarns extending in the other direction are left substantially uncovered.
Claim 20
Dependent Claim
32 words
The surgical gauze of claim 14 wherein the woven component comprises 20×8 yarns per inch, and the staple fiber component comprises from 10 to 70 percent by weight of the stabilized gauze.
Claim 21
Dependent Claim
32 words
The surgical gauze of claim 18 wherein said staple fiber component comprises rayon fiber having a staple length of from 0.5 to 2.0 inches and a denier of from 1.0 to 3.0.
Claim 22
Dependent Claim
40 words
The surgical gauze of claim 18 wherein a major portion of the yarns extending in one direction are encased by the staple length filaments while a major portion of the yarns extending in the other direction are left substantially uncovered.
Claim 23
Independent Claim
153 words
A method for physically and dimensionally stabilizing a loosely woven fabric composed of spaced apart warp and fill yarns, said method comprising a. forming a fibrous web of staple length fibers, b. positioning said fibrous web on one or both surfaces of said loosely woven fabric to form a layered structure, c. supporting said layered structure on a liquid pervious forming belt having a series of surface ridges and valleys extending in one direction, said valleys being substantially in registry with one of said warp and fill yarns of said woven fabric, d. subjecting said layered structure to hydraulic entanglement while supported on said forming belt whereby the staple fibers of said fibrous web are entangled about said warp and fill yarns and substantially anchor said yarns at the intersections thereof, whereby said warp and fill yarns are restrained from movement relative to one another and said fabric is physically and dimensionally stabilized.
Claim 24
Independent Claim
153 words
A method for physically and dimensionally stabilizing a loosely woven fabric composed of spaced apart warp and fill yarns, said method comprising a. forming a fibrous web of staple length fibers, b. positioning said fibrous web on one or both surfaces of said loosely woven fabric to form a layered structure, c. supporting said layered structure on a liquid pervious forming belt having a series of surface ridges and valleys extending in one direction, said valleys being substantially in registry with one of said warp and fill yarns of said woven fabric, d. subjecting said layered structure to hydraulic entanglement while supported on said forming belt whereby the staple fibers of said fibrous web are entangled about said warp and fill yarns and substantially anchor said yarns at the intersections thereof, whereby said warp and fill yarns are restrained from movement relative to one another and said fabric is physically and dimensionally stabilized.
Claim 25
Dependent Claim
23 words
The method of claim 21 wherein said staple length fibers are from 0.5 to 3.0 inches long and from 0.5 to 4.0 denier.
Claim 26
Dependent Claim
24 words
The method of claim 21 wherein said loosely woven fabric has from 2 to 30 yarns per inch in said warp and fill directions.
Claim 27
Dependent Claim
43 words
The method of claim 21 wherein said valleys of said forming belt are substantially in registry with the fill yarns of said woven fabric, and said fill yarns are substantially totally encased by said staple fibers as a result of said hydraulic entanglement.
Claim 28
Dependent Claim
77 words
A stabilized fabric comprising a loosely constructed base fabric composed of spaced apart intersecting yarns defining a plurality of openings in said base fabric and a discontinuous fiber component comprising a plurality of fibers entangled about said intersecting yarns of said base fabric without completely encasing said yarns, said discontinuous fibers substantially anchoring said intersecting yarns at the intersections thereof, said stabilized fabric including a plurality of openings defined by said intersecting yarns of said base fabric.
Claim 29
Dependent Claim
77 words
A stabilized fabric comprising a loosely constructed base fabric composed of spaced apart intersecting yarns defining a plurality of openings in said base fabric and a discontinuous fiber component comprising a plurality of fibers entangled about said intersecting yarns of said base fabric without completely encasing said yarns, said discontinuous fibers substantially anchoring said intersecting yarns at the intersections thereof, said stabilized fabric including a plurality of openings defined by said intersecting yarns of said base fabric.
Claim 30
Dependent Claim
35 words
The fabric of claim 25 wherein said loosely constructed base fabric is a woven fabric comprising a plurality of spaced apart warp yarns intersecting at right angles with a plurality of spaced apart fill yarns.
Claim 31
Dependent Claim
15 words
The fabric of claim 25 wherein said loosely constructed base fabric is a knit fabric.
Claim 32
Dependent Claim
15 words
The fabric of claim 25 wherein said discontinuous fiber component comprises staple length textile fibers.
Claim 33
Independent Claim
137 words
A method for physically and dimensionally stabilizing a loosely constructed fabric composed of spaced apart intersecting yarns, said method comprising a. forming a fibrous web of discontinuous fibers, b. positioning said fibrous web on one or both surfaces of said loosely constructed fabric to form a layered structure, c. supporting said layered structure on a liquid pervious forming belt having a series of porous surface depressions, said depressions being substantially in registry with the intersections of the yarns of said fabric, d. subjecting said layered structure to hydraulic entanglement while supported on said forming belt whereby the discontinuous fibers of said fibrous web are entangled abut said intersecting yarns and substantially anchor said yarns at the intersections thereof, whereby said yarns are restrained from movement relative to one another and said fabric is physically and dimensionally stabilized.
Claim 34
Independent Claim
137 words
A method for physically and dimensionally stabilizing a loosely constructed fabric composed of spaced apart intersecting yarns, said method comprising a. forming a fibrous web of discontinuous fibers, b. positioning said fibrous web on one or both surfaces of said loosely constructed fabric to form a layered structure, c. supporting said layered structure on a liquid pervious forming belt having a series of porous surface depressions, said depressions being substantially in registry with the intersections of the yarns of said fabric, d. subjecting said layered structure to hydraulic entanglement while supported on said forming belt whereby the discontinuous fibers of said fibrous web are entangled abut said intersecting yarns and substantially anchor said yarns at the intersections thereof, whereby said yarns are restrained from movement relative to one another and said fabric is physically and dimensionally stabilized.
Claim 35
Dependent Claim
25 words
The method of claim 29 wherein said discontinuous fibers are staple length fibers from 0.5 to 3.0 inches long and from 0.5 to 4.0 denier.
Claim 36
Dependent Claim
28 words
The method of claim 29 wherein said loosely constructed fabric is a woven fabric having from 2 to 30 yarns per inch in the warp and fill directions.
Claim 37
Dependent Claim
14 words
The method of claim 29 wherein said loosely constructed fabric is a knit fabric.
References Cited (Backward Citations)
US3081515A
Cited
US3068547A
Cited
US3129466A
Cited
US3485706A
Cited
US3679535A
Cited
US4016319A
Cited
US4095007A
Cited
US4379799A
Cited
US4612226A
Cited
US4465726A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-09-21 | 1991-03-23 | 1991-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-09-21 | 1995-03-23 | 1995-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-09-21 | 1999-03-23 | 1999-09-22 | $7700.00 | Window Closed / Lapsed |