US4526828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective apparel material and method for producing same
Assignee: Pioneer Industrial Products Co
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Filing: 1983-06-27
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Granted: 1985-07-02
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Expires: 2003-06-27
Abstract
Abstract A protective material for use in articles of apparel such as golves, leggings, sleeves, aprons and the like. The protective material comprises a base layer composed of textile material, an intermediate layer composed of a cut-resistant material having intermeshing strands defining pores therebetween and an outer layer composed of solid, elastomeric material which retards penetration by liquid. The elastomeric material covers and is bonded to the base layer which prevents passage entirely therethrough by liquid, elastomeric material but permits partial penetration. The solid, elastomeric material extends through the pores of the intermediate layer and encapsulates the strands thereof. A method for producing the protective material comprises dipping an article composed of base layer and intermediate layer into a bath of liquid, elastomeric material preferably after absorbing into the base layer a coagulant for the liquid elastomeric material.
Inventors
- 👤 Kenneth E. Fogt
- 👤 James D. Slosser
- 👤 John A. Varos
- 👤 Gopinath Radhakrishnan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:15
CPC Classifications
B; B29; B29C; B29C41/00; B29C41/02; B29C41/14; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/26; A; A41; A41D; A41D31/00; A41D31/04; A41D31/24; A41D31/245; B29C41/20; B29D; B29D99/00; B29D99/0064; B29D99/0067; B32B5/02; B32B5/026; B32B5/08; B32B7/00; B32B7/04; B32B7/12; B29K; B29K2021/00; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/0809; B29K2311/00; B29K2311/10; B29K2705/00; B29L; B29L2031/00; B29L2031/48; B29L2031/4842; B29L2031/4864; B32B2262/00; B32B2262/02; B32B2262/0261; B32B2262/0269; B32B2262/06; B32B2262/062; B32B2307/00; B32B2307/50; B32B2307/58; B32B2307/581; B32B2317/00; B32B2317/10; B32B2437/00; B32B2437/02; B32B2571/00; Y; Y10; Y10S; Y10S428/00; Y10S428/902; Y10S428/911; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/109; Y10T442/131; Y10T442/20; Y10T442/2615; Y10T442/273
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
123 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; and 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 to bond the intermediate layer to said base layer, filling the pores in said intermediate layer and substantially totally encapsulating the strands of said intermediate layer.
Claim 2
Dependent Claim
123 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; and 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 to bond the intermediate layer to said base layer, filling the pores in said intermediate layer and substantially totally encapsulating the strands of said intermediate layer.
Claim 3
Dependent Claim
24 words
A protective material as recited in claim 1 wherein: said base layer is composed of fiber material capable of bonding to said elastomeric material.
Claim 4
Dependent Claim
36 words
A protective material as recited in claim 1 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 5
Dependent Claim
23 words
A protective material as recited in claim 1 wherein: said textile material of said base layer comprises at least a predominance of cotton.
Claim 6
Dependent Claim
24 words
A protective material as recited in claim 1 wherein; said solid, elastomeric material partially penetrates said base layer to assist in the bonding thereof.
Claim 7
Dependent Claim
24 words
A protective material as recited in claim 5 wherein: said elastomeric material is the predominant bond between the base layer and the intermediate layer.
Claim 8
Dependent Claim
31 words
A protective material as recited in claim 1 wherein said strands of said intermediate layer comprise: an interior, metallic spine; and a non-metallic, exterior composed of textile fibers enclosing said spine.
Claim 9
Dependent Claim
26 words
A protective material as recited in claim 1 wherein: said elastomeric material comprises at least one of acrylonitrile butadiene rubber, polyvinyl chloride, polychoroprene and natural rubber.
Claim 10
Dependent Claim
22 words
A protective material as recited in claim 1 wherein: said intermediate layer is sandwiched between said base layer and said outer layer.
Claim 11
Dependent Claim
16 words
An article of apparel composed at least in part of the protective material of claim 1.
Claim 12
Independent Claim
249 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 non-porous 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 liquid 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; and 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.
Claim 13
Independent Claim
249 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 non-porous 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 liquid 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; and 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.
Claim 14
Dependent Claim
57 words
A method as recited in claim 11 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 the elastomeric material.
Claim 15
Dependent Claim
31 words
A method as recited in claim 11 and comprising: providing a coagulating agent for said liquid elastomeric material; and absorbing said coagulating agent into said base layer before said dipping step.
Claim 16
Dependent Claim
61 words
A method as recited in claim 11 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 17
Dependent Claim
17 words
A method as recited in claim 11 wherein: said liquid elastomeric material partially penetrates said base layer.
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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) | 1988-07-01 | 1988-12-31 | 1989-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-01 | 1992-12-31 | 1993-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-01 | 1996-12-31 | 1997-07-02 | $7700.00 | Window Closed / Lapsed |