US4879165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lightweight armor
Assignee: Individual
•
Filing: 1988-06-20
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Granted: 1989-11-07
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Expires: 2008-06-20
Abstract
Abstract Lightweight armor or high impact structures comprising lamina-like structures comprising zones of decreasing Young's modulus and increasing elongation characteristics. The structure contains at least one ionomer composite having aramid or linearly crystalline polyethylene fibers arranged to dissipate impact forces laterally.
Inventors
- 👤 W. Novis Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:35
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/02; B32B5/12; B32B7/00; B32B7/02; B32B7/022; F; F41; F41H; F41H5/00; F41H5/02; F41H5/04; F41H5/0414; F41H5/0428; F41H5/0435; B32B2262/00; B32B2262/02; B32B2262/0253; B32B2262/0261; B32B2262/0269; B32B2307/00; B32B2307/50; B32B2307/558; B32B2571/00; B32B2571/02; Y; Y10; Y10S; Y10S428/00; Y10S428/911; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24124; Y10T428/24942; Y10T428/25
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
64 words
An armor structure or high impact structure comprising a plurality of zones, at least one zone comprising an extruded ionomer resin, said zone of ionomer resin having incorporated therein a fibrous structure comprising an aramid and/or linearly crystallized polyethylene arranged in an amount and direction to transfer impact forces laterally, said zones being arranged in zones of decreasing Young's modulus and increasing elongation characteristics.
Claim 2
Dependent Claim
64 words
An armor structure or high impact structure comprising a plurality of zones, at least one zone comprising an extruded ionomer resin, said zone of ionomer resin having incorporated therein a fibrous structure comprising an aramid and/or linearly crystallized polyethylene arranged in an amount and direction to transfer impact forces laterally, said zones being arranged in zones of decreasing Young's modulus and increasing elongation characteristics.
Claim 3
Dependent Claim
16 words
The armor structure of claim 1 wherein said fibrous structure comprises a multiplicity of woven webs.
Claim 4
Dependent Claim
14 words
The armor structure of claim 2 wherein said fibrous structure comprises poly (p-phenylene terephthalamide).
Claim 5
Dependent Claim
13 words
The armor structure of claim 1 wherein said fibers are linearly crystallized polyethylene.
Claim 6
Dependent Claim
30 words
The armor structor of claim 1 wherein the fibrous structure is a mixture of aramid and a member selected from the group consisting of linearly crystallized polyethylene, carbon and glass.
Claim 7
Dependent Claim
19 words
The armor structure of claim 1 wherein one zone comprises aramid fibers and another zone comprises linearly crystallized polyethylene.
Claim 8
Dependent Claim
27 words
The armor structure of claim 1 wherein an outer zone comprises an ionomer resin matrix having ceramic or metallic particles incorporated therein to stop needle-like projectile penetration.
Claim 9
Dependent Claim
26 words
The armor structure of claim 7 wherein said ceramic particles are selected from the group consisting of silicon carbide, boron carbide, titanium diborde and tungsten carbide.
Claim 10
Dependent Claim
23 words
The armor structure of claim 7 wherein the out lamina comprises an ionomer matrix having platelets incorporated therein to stop needle-like projectile penetration.
Claim 11
Dependent Claim
27 words
The armor structure of claim 1 wherein a zone to stop needle-like projectile penetration comprises the outer portion and said zone comprises ceramic grits, particles or tiles.
Claim 12
Dependent Claim
10 words
The armor structure of claim 1 which is body armor.
Claim 13
Dependent Claim
10 words
The armor structure of claim 1 which is structural armor.
Claim 14
Dependent Claim
58 words
An armor structure or high impact structure comprising at least one zone of extruded, partially neutralized, sodium or zinc ionomer resin, said zone of ionomer resin having incorporated therein a fibrous structure comprising an aramid and/or linearly crystallized polyethylene arranged in an amount and direction to transfer impact forces laterally, said ionomer resin being formed with a polyamine.
Claim 15
Dependent Claim
58 words
An armor structure or high impact structure comprising at least one zone of extruded, partially neutralized, sodium or zinc ionomer resin, said zone of ionomer resin having incorporated therein a fibrous structure comprising an aramid and/or linearly crystallized polyethylene arranged in an amount and direction to transfer impact forces laterally, said ionomer resin being formed with a polyamine.
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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) | 1992-11-06 | 1993-05-08 | 1993-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-06 | 1997-05-08 | 1997-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-06 | 2001-05-08 | 2001-11-07 | $7700.00 | Window Closed / Lapsed |