US4588646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective sheet for articles of clothing and the like
Assignee: Individual
•
Filing: 1984-10-15
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Granted: 1986-05-13
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Expires: 2004-10-15
Abstract
Abstract The protective sheet for use of an article of clothing or shelter utilizing a first layer of soft pliant material which has a low initial tensile modulus of elasticity. Held to the first layer is a second layer of ductile material having metal-like qualities and being impermeable to fluids. The second layer is thinner than the first layer.
Inventors
- 👤 Robert D. Athey, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:16
CPC Classifications
A; A41; A41D; A41D31/00; A41D31/04; B; B32; B32B; B32B15/00; B32B15/04; B32B15/06; B32B15/08; B32B15/082; B32B15/085; B32B25/00; B32B25/10; B32B25/18; B32B25/20; B32B27/00; B32B27/12; B32B2255/00; B32B2255/06; B32B2255/26; B32B2307/00; B32B2307/50; B32B2307/536; B32B2307/54; B32B2307/584; B32B2307/70; B32B2307/724; B32B2307/726; B32B2311/00; B32B2311/02; B32B2311/04; B32B2311/08; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31529; Y10T428/31551; Y10T428/31605; Y10T428/31609; Y10T428/31678; Y10T428/31692; Y10T428/31699; Y10T428/31707; Y10T428/31826
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
116 words
A protective sheet for use as an article of clothing comprising: a. a first layer of soft pliant material having a low initial tensile modulus of elasticity; b. a second layer held to said first layer, and second layer comprising a ductile material capable of forming positive ions and being impermeable to fluids, said second layer being thinner than said first layer, said first and second layers forming opposite first and second surfaces of the protective sheet respectively, said first surface of said protective sheet intended for serving as the inner most layer of the article of clothing; and c. a third layer held onto said second layer comprising a flexible oxygen impermeable, scratch resistant material.
Claim 2
Dependent Claim
116 words
A protective sheet for use as an article of clothing comprising: a. a first layer of soft pliant material having a low initial tensile modulus of elasticity; b. a second layer held to said first layer, and second layer comprising a ductile material capable of forming positive ions and being impermeable to fluids, said second layer being thinner than said first layer, said first and second layers forming opposite first and second surfaces of the protective sheet respectively, said first surface of said protective sheet intended for serving as the inner most layer of the article of clothing; and c. a third layer held onto said second layer comprising a flexible oxygen impermeable, scratch resistant material.
Claim 3
Dependent Claim
17 words
The protective sheet of claim 1 in which said material of said second layer is a metal.
Claim 4
Dependent Claim
34 words
The protective sheet of claim 1 in which said material of said first layer is chosen from the group comprising essentially butyl rubber, polyurethane, polyethylene, nitrile rubber, natural rubber, silicone rubber and polyvinyl chloride.
Claim 5
Dependent Claim
18 words
The protective sheet of claim 1 in which said material of said second layer is an metal alloy.
Claim 6
Dependent Claim
21 words
The protective sheet of claim 4 in which said alloy is chosen from the group comprising essentially brass, bronze, and pewter.
Claim 7
Dependent Claim
114 words
A protective sheet for use as an article of clothing comprising: a. a first layer of soft pliant material having a low initial tensile modulus of elasticity; b. a second layer held to said first layer, said second layer comprising a ductile material of high polarity and being impermeable to fluids, said second layer being thinner than said first layer, said first and second layer forming opposite first and second surfaces of the protective sheet respectively, said first surface of said protective sheet intended for serving as the inner most layer of the article of clothing; and c. a third layer held onto said second layer comprising a flexible oxygen impermeable, scratch resistant material.
Claim 8
Dependent Claim
114 words
A protective sheet for use as an article of clothing comprising: a. a first layer of soft pliant material having a low initial tensile modulus of elasticity; b. a second layer held to said first layer, said second layer comprising a ductile material of high polarity and being impermeable to fluids, said second layer being thinner than said first layer, said first and second layer forming opposite first and second surfaces of the protective sheet respectively, said first surface of said protective sheet intended for serving as the inner most layer of the article of clothing; and c. a third layer held onto said second layer comprising a flexible oxygen impermeable, scratch resistant material.
Claim 9
Dependent Claim
18 words
The protective sheet of claim 6 in which said material of said second layer is a metallic compound.
Claim 10
Dependent Claim
37 words
The protective sheet of claim 6 in which said material of said second layer is chosen from the group consisting essentially of gold, silver, copper, zinc, tin, lead, aluminum, platinum, rhodium, palladium, iridium, ruthenium, osmium and nickel.
Claim 11
Dependent Claim
20 words
The protective sheet of claims 1 or 6 and in which said material of said third layer is a varnish.
Claim 12
Dependent Claim
19 words
The protective sheet of claims 1 or 6 in which said material of said third layer is a paint.
Claim 13
Dependent Claim
19 words
The protective sheet of claims 1 or 6 in which said material of said third layer is a lacquer.
Claim 14
Dependent Claim
45 words
The protective sheet of claim 1 or 6 in which said low initial tensile modulus of elasticity of said material of first layer is defined by a strain without failure of at least 5%, for an application of stress of between 10 and 100 psi.
Claim 15
Dependent Claim
33 words
The protective sheet of claim 1 or 6 in which said ductility of said material of said second layer is defined by an extension of 1%-4% at a tensile stress of 1000 psi.
Claim 16
Dependent Claim
31 words
The protective sheet of claims 1 or 6 in which said scratch resistance of said material of said third layer possess a minimum hardness of 2H with a pencil hardness test.
Claim 17
Dependent Claim
29 words
The protective sheet of claims 1 or 6 in which said third layer material is chosen from the group comprising polyurethane lacquer, acrylic lacquer, epoxy lacquer and cellulosic lacquer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-05-12 | 1989-11-11 | 1990-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-12 | 1993-11-11 | 1994-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-12 | 1997-11-11 | 1998-05-13 | $7700.00 | Window Closed / Lapsed |