US4732803A
Expired / Lapsed
US
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Light weight armor
Assignee: Individual
•
Filing: 1986-10-07
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Granted: 1988-03-22
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Expires: 2006-10-07
Abstract
Abstract Light weight armor comprising lamina-like structures arranged with zones of decreasing Young's modulus and increasing elongation characteristics. The structure contains at least one composite having fibers arranged to dissipate impact forces laterally.
Inventors
- 👤 W. Novis Smith, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:23
CPC Classifications
F; F41; F41H; F41H5/00; F41H5/02; F41H5/04; F41H5/0471; F41H5/0478; B; B32; B32B; B32B5/00; B32B5/02; B32B5/04; B32B7/00; B32B7/02; B32B7/022; B32B7/03; F41H5/0442; F41H5/0457; F41H5/0464; B32B38/00; B32B2038/0052; B32B2038/0072; B32B2260/00; B32B2260/04; B32B2260/046; B32B2262/00; B32B2262/02; B32B2262/0261; B32B2262/0269; B32B2262/10; B32B2262/101; B32B2262/106; B32B2307/00; B32B2307/50; B32B2307/514; B32B2307/558; B32B2437/00; B32B2437/04; B32B2571/00; B32B2571/02; B32B2605/00; B32B2605/12; B32B2605/18; Y; Y10; Y10S; Y10S428/00; Y10S428/911; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24124; Y10T428/24942; Y10T428/25
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
63 words
An armor structure comprising a plurality of zones of resinous materials, said zones being arranged in decreasing Young's modulus and increasing elongation characteristics, at least one of said zones comprising a resin matrix having fibers incorporated therein; said resin matrix having the same or higher elongation at break as the fibers incorporated therein, and said fibers being oriented to transfer impact energy laterally.
Claim 2
Dependent Claim
63 words
An armor structure comprising a plurality of zones of resinous materials, said zones being arranged in decreasing Young's modulus and increasing elongation characteristics, at least one of said zones comprising a resin matrix having fibers incorporated therein; said resin matrix having the same or higher elongation at break as the fibers incorporated therein, and said fibers being oriented to transfer impact energy laterally.
Claim 3
Dependent Claim
16 words
The armor structure of claim 1 wherein said zones comprise a thermoplastic interpenetrating polymer network compoosition.
Claim 4
Dependent Claim
14 words
The armor structure of claim 1 wherein each zone comprise a different resin matrix.
Claim 5
Dependent Claim
13 words
The armor structure of claim 1 wherein two zones have fibers incorporated therein.
Claim 6
Dependent Claim
12 words
The armor structure of claim 1 wherein the fibers are carbon fibers.
Claim 7
Dependent Claim
12 words
The armor structure of claim 1 whrein the fibers are aramid fibers.
Claim 8
Dependent Claim
12 words
The armor structure of claim 1 wherein the fibers are glass fibers.
Claim 9
Dependent Claim
18 words
The armor structure of claim 1 wherein one zone comprises aramid fibers and another zone comprises carbon fibers.
Claim 10
Dependent Claim
24 words
The armor structure of claim 1 wherein the fibers are selected from the group consisting of aramid, carbon, linear cystrallized polyolefin and glass fibers.
Claim 11
Dependent Claim
13 words
The armor structure of claim 1 wherein one zone is free of fibers.
Claim 12
Dependent Claim
22 words
The armor structure of claim 1 wherein a plurality of laminae are spearately formed and adhesively bondd together to form said zones.
Claim 13
Dependent Claim
17 words
The armor structure of claim 11 wherein the outer lamina comprises a high strength thermoset resin matrix.
Claim 14
Dependent Claim
23 words
The armor structur of claim 12 wherein said at least one lamina comprises a composite containaer fibers oriented to tansfer impact energy laterally.
Claim 15
Dependent Claim
25 words
The armor structure of claim 12 wherein said lamina comprises a resin matrix having a slightly higher elongation at break as the fibers incorporated therein.
Claim 16
Dependent Claim
11 words
The armor structure of claim 14 wherein said fibers are woven.
Claim 17
Dependent Claim
19 words
The armor structure of claim 1 wherein at least two zones comprise chemically blended thermoplastic interpenetrating polymer network compositions.
Claim 18
Dependent Claim
24 words
The armor sturcture of claim 17 wherein at least one zone contains fibers arranged in a manner and direction to transfer impact forces laterally.
Claim 19
Dependent Claim
23 words
The armor structure of claim 25 wherein said fibers are selectd from the group consisting aramid, carbon, linear crystallized polyolefins and glass fibers.
Claim 20
Dependent Claim
16 words
The armor structure of claim 1 wherein at least one zone contains fillers which are spherical.
Claim 21
Dependent Claim
10 words
The armor structure of claim 1 which is a helmut.
Claim 22
Dependent Claim
11 words
The armor structure of claim 1 which is a boat hull.
Claim 23
Dependent Claim
11 words
The armor structure of claim 1 which is a military vehicle.
Claim 24
Dependent Claim
10 words
The armor structure of claim 1 which is a helicopter.
Claim 25
Dependent Claim
63 words
An armor structure comprising a thermoplastic interpenetrating polymer network composition having a plurality of polymer zones arranged in decreasing Young's modulus and increasing elongation characteristics, at least one of said zones having fibers incorporated therein, said fibers being oriented to transfer impact energy laterally, said fibers having the same or higher elongation at break as the polymer in which said fibers are incorporated.
Claim 26
Dependent Claim
63 words
An armor structure comprising a thermoplastic interpenetrating polymer network composition having a plurality of polymer zones arranged in decreasing Young's modulus and increasing elongation characteristics, at least one of said zones having fibers incorporated therein, said fibers being oriented to transfer impact energy laterally, said fibers having the same or higher elongation at break as the polymer in which said fibers are incorporated.
Claim 27
Dependent Claim
59 words
An armor structure comprising a plurality of lamina sturctures of resinous materials arranged in order of decreasing Young's modulus and increasing in break characteristics at least one of said lamina having fibers incorporated therein which are oriented to transfer impact energy laterally, said resinous materials having substantially the same or higher elongation at break as the fibers incorporated therein.
Claim 28
Dependent Claim
59 words
An armor structure comprising a plurality of lamina sturctures of resinous materials arranged in order of decreasing Young's modulus and increasing in break characteristics at least one of said lamina having fibers incorporated therein which are oriented to transfer impact energy laterally, said resinous materials having substantially the same or higher elongation at break as the fibers incorporated therein.
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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) | 1991-03-22 | 1991-09-21 | 1992-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-22 | 1995-09-21 | 1996-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-22 | 1999-09-21 | 2000-03-22 | $7700.00 | Window Closed / Lapsed |