US5443882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Armored garment
Assignee: PTI ARMOR SYSTEMS LLC
•
Filing: 1994-10-21
•
Granted: 1995-08-22
•
Expires: 2014-10-21
Abstract
Abstract A ballistic laminate structure in sheet form, which includes a first array of high performance, unidirectionally-oriented fiber bundles and a second array of high performance, unidirectionally-oriented fiber bundles cross-plied at an angle with respect to the first array of fiber bundles, and laminated to the first array of fiber bundles in the absence of adhesives or bonding agents. First and second thermoplastic films are bonded to outer surfaces of the laminated first and second arrays of unidirectional fiber bundles without penetration of the films into fiber bundles or through the laminate from one side to the other.
Inventors
- 👤 Andrew D. Park
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:59
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/02; B32B5/12; A; A41; A41D; A41D31/00; A41D31/04; A41D31/24; A41D31/245; B32B27/00; B32B27/12; B32B27/32; B32B5/22; B32B5/24; B32B5/26; D; D04; D04H; D04H3/00; D04H3/02; D04H3/04; F; F41; F41H; F41H5/00; F41H5/02; F41H5/04; F41H5/0414; F41H5/0428; F41H5/0435; F41H5/0442; F41H5/0457; F41H5/0464; F41H5/0471; F41H5/0485; B32B2262/00; B32B2262/02; B32B2262/0261; B32B2262/0269; B32B2323/00; B32B2323/04; B32B2571/00; B32B2571/02; Y; Y10; Y10S; Y10S428/00; Y10S428/902; Y10S428/911; Y10T; Y10T428/00; Y10T428/24; Y10T428/24025; Y10T428/24033; Y10T428/24041; Y10T428/24058; Y10T428/24124; Y10T428/24132; Y10T428/30; Y10T442/00; Y10T442/60; Y10T442/659; Y10T442/671; Y10T442/674; Y10T442/678
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
213 words
In an armored garment including at least one ballistic panel contained within a supporting structure of the garment for being worn on a body part, the improvement comprising a plurality of ballistic laminate structure in sheet form assembled together to form the ballistic panel, said laminate structure comprising: (a) a first array of high performance, unidirectionally-oriented fiber bundles; (b) a second array of high performance, unidirectionally-oriented fiber bundles cross-plied at an angle with respect to said first array of fiber bundles, and laminated to said first array of fiber bundles in the absence of adhesives or bonding agents, said first and second arrays of high performance, unidirectionally-oriented fiber bundles comprising fibers chosen from the group consisting of aramid fiber, ultra high molecular weight polyethylene, high molecular weight polyethylene, high modulus vinylon, and liquid crystal polymer-based fiber; and (c) first and second thermoplastic films bonded to outer surfaces of said laminated first and second arrays of unidirectional fiber bundles without penetration of said films into said fiber bundles or through the laminate structure from one side to the other, whereby a sufficient amount of film resides between the laminated first and second arrays of unidirectional fiber bundles to adhere the first and second arrays of fiber bundles together to form the ballistic laminate structure.
Claim 2
Dependent Claim
213 words
In an armored garment including at least one ballistic panel contained within a supporting structure of the garment for being worn on a body part, the improvement comprising a plurality of ballistic laminate structure in sheet form assembled together to form the ballistic panel, said laminate structure comprising: (a) a first array of high performance, unidirectionally-oriented fiber bundles; (b) a second array of high performance, unidirectionally-oriented fiber bundles cross-plied at an angle with respect to said first array of fiber bundles, and laminated to said first array of fiber bundles in the absence of adhesives or bonding agents, said first and second arrays of high performance, unidirectionally-oriented fiber bundles comprising fibers chosen from the group consisting of aramid fiber, ultra high molecular weight polyethylene, high molecular weight polyethylene, high modulus vinylon, and liquid crystal polymer-based fiber; and (c) first and second thermoplastic films bonded to outer surfaces of said laminated first and second arrays of unidirectional fiber bundles without penetration of said films into said fiber bundles or through the laminate structure from one side to the other, whereby a sufficient amount of film resides between the laminated first and second arrays of unidirectional fiber bundles to adhere the first and second arrays of fiber bundles together to form the ballistic laminate structure.
Claim 3
Dependent Claim
30 words
An improved armored garment according to claim 1, wherein the first array of fiber bundles is cross-plied at an angle of 90 degrees to the second array of fiber bundles.
Claim 4
Dependent Claim
24 words
An improved armored garment according to claim 1, wherein said first and second thermoplastic films comprise polyethylene film having a thickness of 0.35 mils.
Claim 5
Dependent Claim
37 words
An improved armored garment according to claim 1, wherein the percentage by weight of the high performance fibers in the ballistic laminate structure is at least 80 percent of the total weight of the ballistic laminate structure.
Claim 6
Dependent Claim
31 words
An improved armored garment according to claim 1, and comprising at least 10 and no more than 60 sheets of the ballistic laminate structure for preventing penetration of hand gun rounds.
Claim 7
Dependent Claim
32 words
An improved armored garment according to claim 1, and comprising at least 40 and no more than 150 sheets of the ballistic laminate structure for preventing penetration of high velocity rifle rounds.
Claim 8
Dependent Claim
22 words
An improved armored garment according to claim 1, and including a fabric envelope within which the ballistic laminate structure sheets are contained.
Claim 9
Dependent Claim
218 words
In an armored garment including at least one ballistic panel contained within a supporting structure of the garment for being worn on a body part, the improvement comprising a plurality of ballistic laminate structure in sheet form assembled together to form the ballistic panel, said laminate structure comprising: (a) a first array of high performance, unidirectionally-oriented aramid fiber bundles; (b) a second array of high performance, unidirectionally-oriented aramid fiber bundles cross-plied at an angle of 90 degrees with respect to said first array of fiber bundles, and laminated to said first array of fiber bundles in the absence of adhesives or bonding agents, said first and second arrays of high performance, unidirectionally-oriented fiber bundles comprising fibers chosen from the group consisting of aramid fiber, ultra high molecular weight polyethylene, high molecular weight polyethylene, high modulus vinylon, and liquid crystal polymer-based fiber; and (c) first and second thermoplastic films bonded to outer surfaces of said laminated first and second arrays of unidirectional fiber bundles without penetration of said films into said fiber bundles or through the laminate structure from one side to the other, whereby a sufficient amount of film resides between the laminated first and second arrays of unidirectional fiber bundles to adhere the first and second arrays of fiber bundles together to form the ballistic laminate structure.
Claim 10
Dependent Claim
218 words
In an armored garment including at least one ballistic panel contained within a supporting structure of the garment for being worn on a body part, the improvement comprising a plurality of ballistic laminate structure in sheet form assembled together to form the ballistic panel, said laminate structure comprising: (a) a first array of high performance, unidirectionally-oriented aramid fiber bundles; (b) a second array of high performance, unidirectionally-oriented aramid fiber bundles cross-plied at an angle of 90 degrees with respect to said first array of fiber bundles, and laminated to said first array of fiber bundles in the absence of adhesives or bonding agents, said first and second arrays of high performance, unidirectionally-oriented fiber bundles comprising fibers chosen from the group consisting of aramid fiber, ultra high molecular weight polyethylene, high molecular weight polyethylene, high modulus vinylon, and liquid crystal polymer-based fiber; and (c) first and second thermoplastic films bonded to outer surfaces of said laminated first and second arrays of unidirectional fiber bundles without penetration of said films into said fiber bundles or through the laminate structure from one side to the other, whereby a sufficient amount of film resides between the laminated first and second arrays of unidirectional fiber bundles to adhere the first and second arrays of fiber bundles together to form the ballistic laminate structure.
Claim 11
Dependent Claim
24 words
An improved armored garment according to claim 8, wherein said first and second thermoplastic films comprise polyethylene film having a thickness of 0.35 mils.
Claim 12
Dependent Claim
37 words
An improved armored garment according to claim 8, wherein the percentage by weight of the high performance fibers in the ballistic laminate structure is at least 80 percent of the total weight of the ballistic laminate structure.
Claim 13
Dependent Claim
31 words
An improved armored garment according to claim 8, and comprising at least 10 and no more than 60 sheets of the ballistic laminate structure for preventing penetration of hand gun rounds.
Claim 14
Dependent Claim
32 words
An improved armored garment according to claim 8, and comprising at least 40 and no more than 150 sheets of the ballistic laminate structure for preventing penetration of high velocity rifle rounds.
Claim 15
Dependent Claim
22 words
An improved armored garment according to claim 8, and including a fabric envelope within which the ballistic laminate structure sheets are contained.
Claim 16
Dependent Claim
28 words
An improved armored garment according to claim 8, wherein each of said aramid fiber arrays has 10 bundles per inch of 840 denier, 1.5 denier per filament fiber.
References Cited (Backward Citations)
US3322613A
Cited
US3439865A
Cited
US4309487A
Cited
US4213812A
Cited
US3719545A
Cited
US4079161A
Cited
US3891996A
Cited
US4181768A
Cited
US4090005A
Cited
US4186648A
Cited
US4287607A
Cited
US4428998A
Cited
US4510200A
Cited
US4574105A
Cited
US4739690A
Cited
US4623574A
Cited
US4748064A
Cited
US4650710A
Cited
US4613535A
Cited
US4737401A
Cited
US4681792A
Cited
US4678702A
Cited
US4916000A
Cited
US4953234A
Cited
US4879165A
Cited
US5179244A
Cited
US5180880A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-08-21 | 1999-02-20 | 1999-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-08-21 | 2003-02-20 | 2003-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-08-21 | 2007-02-20 | 2007-08-22 | $7700.00 | Window Closed / Lapsed |