US5070540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective garment
Assignee: Whizard Protective Wear Corp
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Filing: 1987-07-09
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Granted: 1991-12-10
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Expires: 2007-07-09
Abstract
Abstract A protective garment 10, such as a glove, arm guard or the like of wire 24 and fiber strands 26, 28, 30 and an elastomeric coating 16. The preferred garment is knitted from yarn 12 having a core 22 of one or more wire strands 24 and a fiber strand 26, and two wrappings of fiber strands 28, 30, preferably polyester. The knitted garment is coated, preferably by dipping in nitrile rubber, and the coating is cured in place. The garment is highly cut-resistant, nonabsorbent, highly slip-resistant, liquid in weight and flexible.
Inventors
- 👤 William H. Bettcher
- 👤 Laurence A. Bettcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:47
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/44; D02G3/442; A; A41; A41D; A41D19/00; A41D19/0055; A41D19/0058; A41D19/015; A41D19/01505; A41D19/01511; A41D31/00; A41D31/04; A41D31/24; A41D31/245; D02G3/02; D02G3/12; D04; D04B; D04B1/00; D04B1/22; D04B1/24; D04B1/28; D10; D10B; D10B2403/00; D10B2403/01; D10B2403/011; D10B2403/0112; Y; Y10; Y10S; Y10S2/00; Y10S2/901; Y10S2/903; Y10S428/00; Y10S428/911; Y10S57/00; Y10S57/902; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
120 words
A protective glove comprised of a cover having wire strands, and a fabric liner, and a continuous coating of elastomeric material permeating the cover and adhering the liner and cover together, the improvement wherein the cover is knit from yarn comprised of a core having 2 to 6 strands of stainless steel wire and a parallel synthetic polymer fiber strand having a denier ob 800 to 1500, the overall diameter of the wire strands being no greater than 0.020 inch, and strands, all of which are nonaramid fiber, having a denier of 210 to 630, wrapped about the core in opposite directions one on top of the other, the total diameter of the yarn being no greater than 0.050 inch.
Claim 2
Dependent Claim
120 words
A protective glove comprised of a cover having wire strands, and a fabric liner, and a continuous coating of elastomeric material permeating the cover and adhering the liner and cover together, the improvement wherein the cover is knit from yarn comprised of a core having 2 to 6 strands of stainless steel wire and a parallel synthetic polymer fiber strand having a denier ob 800 to 1500, the overall diameter of the wire strands being no greater than 0.020 inch, and strands, all of which are nonaramid fiber, having a denier of 210 to 630, wrapped about the core in opposite directions one on top of the other, the total diameter of the yarn being no greater than 0.050 inch.
Claim 3
Dependent Claim
160 words
A protective glove of knitted yarn covered with a coating of elastomeric material cured in place and having a fabric liner bonded in place with the coating, the improvement wherein said yarn has a core comprised of four strands of stainless steel wire about 0.003 inch in diameter and a parallel strand of synthetic polymer fiber having a denier of 800 to 1500, the overall diameter of said core wire being no greater than 0.020 inch and said yarn has wrapping strands, all of which are nonaramid fiber having a denier of 210 to 630 wrapped about the core in opposite directions one on top of the other, at least the outer strand of which is polyester, the total diameter of the yarn being no greater than about 0.050 inch, said glove being highly cut-resistant, nonabsorbent to dirt, fat, blood and the like, with high slip resistance and good feel to the wearer, and light in weight, stretchable and flexible.
Claim 4
Dependent Claim
160 words
A protective glove of knitted yarn covered with a coating of elastomeric material cured in place and having a fabric liner bonded in place with the coating, the improvement wherein said yarn has a core comprised of four strands of stainless steel wire about 0.003 inch in diameter and a parallel strand of synthetic polymer fiber having a denier of 800 to 1500, the overall diameter of said core wire being no greater than 0.020 inch and said yarn has wrapping strands, all of which are nonaramid fiber having a denier of 210 to 630 wrapped about the core in opposite directions one on top of the other, at least the outer strand of which is polyester, the total diameter of the yarn being no greater than about 0.050 inch, said glove being highly cut-resistant, nonabsorbent to dirt, fat, blood and the like, with high slip resistance and good feel to the wearer, and light in weight, stretchable and flexible.
Claim 5
Dependent Claim
33 words
A protective glove as set forth in claim 2 wherein the core fiber has a denier of about 1000 and the two strands wrapped about the core have a denier of about 440.
Claim 6
Dependent Claim
127 words
A protective garment, shaped to cover the extremity of a limb, comprised of a cover having wire strands, a fabric liner, and a continuous coating of elastomeric material permeating the cover and adhering the liner and cover together, the improvement wherein the cover is knit from yarn comprised of a core having 2 to 6 strands of stainless steel wire and a parallel synthetic polymer fiber strand having a denier of 800 to 1500, the overall diameter of the wire strands being no greater than 0.020 inch, and strands, all of which are nonaramid fiber, having a denier of 210 to 630, wrapped about the core in opposite directions one on top of the other, the total diameter of the yarn being no greater than 0.050 inch.
Claim 7
Dependent Claim
127 words
A protective garment, shaped to cover the extremity of a limb, comprised of a cover having wire strands, a fabric liner, and a continuous coating of elastomeric material permeating the cover and adhering the liner and cover together, the improvement wherein the cover is knit from yarn comprised of a core having 2 to 6 strands of stainless steel wire and a parallel synthetic polymer fiber strand having a denier of 800 to 1500, the overall diameter of the wire strands being no greater than 0.020 inch, and strands, all of which are nonaramid fiber, having a denier of 210 to 630, wrapped about the core in opposite directions one on top of the other, the total diameter of the yarn being no greater than 0.050 inch.
Claim 8
Dependent Claim
22 words
A protective garment as set forth in claim 4 wherein an outer one of the strands wrapped around the core is polyester.
Claim 9
Dependent Claim
99 words
A flexible protective garment, shaped to cover the extremity of a limb, comprised of a fabric liner, a cover having wire strands over the liner, and a coating of elastomeric material permeating the cover and adhering the liner and cover together, the improvement wherein the cover is a garment shell knit from yarn comprised of a core having at least one strand of stainless steel wire 0.001 to 0.01 inch in diameter and a synthetic polymer fiber strand, and strands, all of which are nonaramid fiber, wrapped about the core in opposite directions one on top of the other.
Claim 10
Dependent Claim
99 words
A flexible protective garment, shaped to cover the extremity of a limb, comprised of a fabric liner, a cover having wire strands over the liner, and a coating of elastomeric material permeating the cover and adhering the liner and cover together, the improvement wherein the cover is a garment shell knit from yarn comprised of a core having at least one strand of stainless steel wire 0.001 to 0.01 inch in diameter and a synthetic polymer fiber strand, and strands, all of which are nonaramid fiber, wrapped about the core in opposite directions one on top of the other.
Claim 11
Dependent Claim
18 words
A protective garment as set forth in claim 6 wherein the strands wrapped around the core are polyester.
Claim 12
Dependent Claim
24 words
A protective garment as set forth in claim 6 wherein there are two strands wrapped around the core and the outer strand is polyester.
Claim 13
Dependent Claim
43 words
A protective garment as set forth in claims 6, 7 or 8 wherein the core includes 2 to 6 strands of stainless steel wire 0.002 to 0.006 inch in diameter, the overall diameter of the wire strands being no greater than 0.020 inch.
Claim 14
Dependent Claim
20 words
A protective garment as set forth in claim 9 wherein the wrapping strands have a denier of 210 to 630.
Claim 15
Dependent Claim
17 words
A protective garment as set forth in claim 9 wherein the protective garment is a cut-resistant glove.
Claim 16
Dependent Claim
84 words
A protective glove comprised of an inner glove-shaped fabric, a metal-wire-containing over-lay on the fabric and an elastomeric coating covering the overlay and bonding it to the fabric, the improvement wherein the overlay is knitted of yarn having a core of at least one wire strand and one fiber strand; and wrappings, all of which are nonaramid fiber, about the core, one on top of the other, the outer of which adheres strongly to the coating; said glove being flexible and highly cut resistant.
Claim 17
Dependent Claim
84 words
A protective glove comprised of an inner glove-shaped fabric, a metal-wire-containing over-lay on the fabric and an elastomeric coating covering the overlay and bonding it to the fabric, the improvement wherein the overlay is knitted of yarn having a core of at least one wire strand and one fiber strand; and wrappings, all of which are nonaramid fiber, about the core, one on top of the other, the outer of which adheres strongly to the coating; said glove being flexible and highly cut resistant.
Claim 18
Dependent Claim
33 words
A glove as set forth in claim 12 wherein the overlay is knit into a glove form that closely surrounds the inner fabric and wherein the wrappings include an outer one of polyester.
Claim 19
Dependent Claim
129 words
A protective material comprising: a base layer of textile material; an intermediate layer of relatively cut-resistant, fiber material formed from intermeshing strands, defining pores therebetween, an outer layer of solid, elastomeric material which retards penetration by liquid; said pores in said intermediate layer being sufficiently large to permit the passage therethrough of said elastomeric material when the latter is in a liquid state; said base layer being sufficiently non-porous to prevent the passage entirely therethrough of said elastomeric material when the latter is in a liquid state; said solid, elastomeric material extending through said intermediate layer, filling the pores in said intermediate layer and substantially totally encapsulating the strands of said intermediate layer; the bond between the base layer and the intermediate layer consisting essentially of said elastomeric material.
Claim 20
Dependent Claim
129 words
A protective material comprising: a base layer of textile material; an intermediate layer of relatively cut-resistant, fiber material formed from intermeshing strands, defining pores therebetween, an outer layer of solid, elastomeric material which retards penetration by liquid; said pores in said intermediate layer being sufficiently large to permit the passage therethrough of said elastomeric material when the latter is in a liquid state; said base layer being sufficiently non-porous to prevent the passage entirely therethrough of said elastomeric material when the latter is in a liquid state; said solid, elastomeric material extending through said intermediate layer, filling the pores in said intermediate layer and substantially totally encapsulating the strands of said intermediate layer; the bond between the base layer and the intermediate layer consisting essentially of said elastomeric material.
Claim 21
Dependent Claim
24 words
A protective material as recited in claim 14 wherein: said base layer is composed of fiber material capable of bonding to said elastomeric material.
Claim 22
Dependent Claim
36 words
A protective material as recited in claim 14 wherein: said base layer is composed of fiber material having sufficient absorbency to hold a coagulant for said elastomeric material when the latter is in a liquid state.
Claim 23
Dependent Claim
23 words
A protective material as recited in claim 14 wherein: said textile material of said base layer comprises at least a predominance of cotton.
Claim 24
Dependent Claim
24 words
A protective material as recited in claim 14 wherein: said solid, elastomeric material partially penetrates said base layer to assist in the bonding thereof.
Claim 25
Dependent Claim
31 words
A protective material as recited in claim 14 wherein: said strands of said intermediate layers comprise: an interior, metallic spine; and a nonmetallic, exterior composed of textile fibers enclosing said spine.
Claim 26
Dependent Claim
26 words
A protective material as recited in claim 14 wherein: said elastomeric material comprises at least one of acrylonitrile butadiene rubber, polyvinyl chloride, polychloroprene, and natural rubber.
Claim 27
Dependent Claim
22 words
A protective material as recited in claim 14 wherein: said intermediate layer is sandwiched between said base layer and said outer layer.
Claim 28
Dependent Claim
16 words
An article of apparel composed at least in part of the protective material of claim 14.
Claim 29
Dependent Claim
35 words
An article of apparel as recited in claim 22 wherein: said article is a glove having a cuff edge; and said base layer and said intermediate layer are sewn together solely at said cuff edge.
Claim 30
Dependent Claim
17 words
A protective material as recited in claim 14 wherein: said solid, elastomeric material covers said base layer.
Claim 31
Dependent Claim
15 words
A protective material as recited in claim 14 wherein: said outer layer is liquid impervious.
Claim 32
Independent Claim
263 words
A method for producing an article composed of protective material comprising a base layer of textile material, an intermediate layer of relatively cut-resistant fiber material and an outer layer of solid, elastomeric material which retards penetration by liquid, said method comprising the steps of: providing said base layer in the form of textile material which is sufficiently nonporous to prevent the passage entirely therethrough of said elastomeric material when the latter is in a liquid state and which will bond to the elastomeric material; conforming said base layer to a predetermined shape dictated by the shape of said article; providing said intermediate layer in a form having intermeshing strands defining pores therebetween sufficiently large to permit the passage therethrough of said elastomeric material when the latter is in a liquid state; mounting said intermediate layer exteriorly to said base layer to conform the shape of said intermediate layer to the shape of the underlying base layer; providing said elastomeric material in a liquid state; dipping the base layer and mounted intermediate layer into said elastomeric material; said dipping step comprising flowing said liquid elastomeric material through said pores in said intermediate layer to cover said base layer, fill said pores and substantially totally encapsulate said strands with said elastomeric material; solidifying the liquid, elastomeric material and bonding it to said base layer while the elastomeric material covers the base layer, fills the pores in said intermediate layer and substantially totally encapsulates the strands in the intermediate layer; the bonding between said intermediate layer and said base layer consisting essentially of said elastomeric material.
Claim 33
Independent Claim
263 words
A method for producing an article composed of protective material comprising a base layer of textile material, an intermediate layer of relatively cut-resistant fiber material and an outer layer of solid, elastomeric material which retards penetration by liquid, said method comprising the steps of: providing said base layer in the form of textile material which is sufficiently nonporous to prevent the passage entirely therethrough of said elastomeric material when the latter is in a liquid state and which will bond to the elastomeric material; conforming said base layer to a predetermined shape dictated by the shape of said article; providing said intermediate layer in a form having intermeshing strands defining pores therebetween sufficiently large to permit the passage therethrough of said elastomeric material when the latter is in a liquid state; mounting said intermediate layer exteriorly to said base layer to conform the shape of said intermediate layer to the shape of the underlying base layer; providing said elastomeric material in a liquid state; dipping the base layer and mounted intermediate layer into said elastomeric material; said dipping step comprising flowing said liquid elastomeric material through said pores in said intermediate layer to cover said base layer, fill said pores and substantially totally encapsulate said strands with said elastomeric material; solidifying the liquid, elastomeric material and bonding it to said base layer while the elastomeric material covers the base layer, fills the pores in said intermediate layer and substantially totally encapsulates the strands in the intermediate layer; the bonding between said intermediate layer and said base layer consisting essentially of said elastomeric material.
Claim 34
Dependent Claim
56 words
A method as recited in claim 26 wherein: said dipping step is conducted for a period of time which permits said liquid elastomeric material to flow through the pores in the intermediate layer to cover the base layer, fill the pores in the intermediate layer and encapsulate the strands in the intermediate layer with elastomeric material.
Claim 35
Dependent Claim
61 words
A method as recited in claim 26 wherein said conforming steps comprise: providing a mold having a predetermined shape dictated by the shape of said article; mounting said base layer on said mold to conform the base layer to the shape of the mold; and mounting said intermediate layer exteriorly of the base layer when the latter is on the mold.
Claim 36
Dependent Claim
17 words
A method as recited in claim 26 wherein: said liquid elastomeric material partially penetrates said base layer.
Claim 37
Dependent Claim
36 words
A method as recited in claim 26 wherein said article is a glove having a cuff edge and wherein said method comprises: sewing said base layer and said intermediate layer together solely at said cuff edge.
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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) | 1994-12-09 | 1995-06-10 | 1995-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-09 | 1999-06-10 | 1999-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-09 | 2003-06-10 | 2003-12-10 | $7700.00 | Window Closed / Lapsed |