US4287607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ballistic vests
Assignee: Burlington Industries Inc
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Filing: 1979-05-17
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Granted: 1981-09-08
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Expires: 1999-05-17
Abstract
Abstract A bullet resistant vest is provided from a plurality of layers of double woven cloth of loosely-woven aramid fiber with nylon film or nylon fabric interposed between some of the layers of aramid fiber double woven cloth, bar tacking being provided for loosely maintaining the layers of double woven cloth and nylon film or fabric together so that shape and flexibility are maintained while not holding the aramid fiber too tightly. The cloth sheets in each layer of double woven cloth of aramid fiber are connected together at predetermined spaced intervals by selected yarns passing from one cloth sheet to the other. A plurality of densely woven material layers may be provided to maintain the vest configuration and prevent collapse over long periods of time, and the entire vest may be sealed in a water-tight envelope.
Inventors
- 👤 Jack Leach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:19
CPC Classifications
F; F41; F41H; F41H1/00; F41H1/02
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
87 words
A ballistic vest comprising a plurality of double cloth layers of loosely woven aramid fiber, the layers of double woven cloth being stitched together at predetermined spaced intervals by selected yarns passing from one cloth sheet to the other; means for providing elongation to the vest and providing surfaces on which said layers of double woven cloth can slide in response to projectile impact; and means for loosely maintaining said layers of double woven cloth and elongation providing means together so that shape and flexibility are maintained.
Claim 2
Dependent Claim
87 words
A ballistic vest comprising a plurality of double cloth layers of loosely woven aramid fiber, the layers of double woven cloth being stitched together at predetermined spaced intervals by selected yarns passing from one cloth sheet to the other; means for providing elongation to the vest and providing surfaces on which said layers of double woven cloth can slide in response to projectile impact; and means for loosely maintaining said layers of double woven cloth and elongation providing means together so that shape and flexibility are maintained.
Claim 3
Dependent Claim
24 words
A vest as recited in claim 1 comprising means for maintaining vest configuration and preventing collapse of the vest over long periods of time.
Claim 4
Dependent Claim
37 words
A vest as recited in claim 2 wherein said configuration maintaining and collapse preventing means comprise a plurality of material layers selected from the group consisting of ballistic nylon cloth and cloth of tightly woven aramid fiber.
Claim 5
Dependent Claim
15 words
A vest as recited in claim 1 further comprising a water-tight envelope enclosing the vest.
Claim 6
Dependent Claim
22 words
A vest as recited in claim 4 wherein said water-tight envelope is constructed of a heat sealable polyurethane coated nylon substrate material.
Claim 7
Dependent Claim
28 words
A vest as recited in claim 1 wherein said means for loosely maintaining together said layers of double woven cloth and said elongation providing means, comprise bar tacking.
Claim 8
Dependent Claim
30 words
A vest as recited in claim 1 wherein said elongation providing means comprises a plurality of layers of elongatable material interspersed between layers of double woven cloth of aramid fiber.
Claim 9
Dependent Claim
24 words
A vest as recited in claim 7 wherein said elongatable material is selected from the group consisting essentially of nylon film and nylon fabric.
Claim 10
Dependent Claim
85 words
A vest as recited in claim 8 wherein said vest comprises a sandwich of 8 layers of double woven cloth of aramid fiber, a layer of nylon film, a layer of double woven cloth of aramid fiber, a layer of nylon film, a layer of double woven cloth of aramid fiber, a layer of nylon film, a layer of double woven cloth of aramid fiber, a layer of nylon film, a layer of double woven cloth of aramid fiber, and a layer of nylon film.
Claim 11
Dependent Claim
28 words
A vest as recited in claim 9 further comprising a plurality of layers selected from the group consisting essentially of nylon cloth and tightly woven aramid fiber layers.
Claim 12
Dependent Claim
16 words
A vest as recited in claim 10 further comprising a water-tight envelope enclosing said vest sandwich.
Claim 13
Dependent Claim
17 words
A vest as recited in claim 4 or claim 11 wherein said water-tight envelope is air permeable.
Claim 14
Dependent Claim
24 words
A vest as recited in claim 1 or claim 10 wherein each layer of double woven cloth of aramid fiber has a 34×34 construction.
Claim 15
Dependent Claim
21 words
A vest as recited in claim 9 wherein some of said layers of nylon film are double layers of nylon film.
Claim 16
Dependent Claim
19 words
A vest as recited in claim 8 or claim 9 or claim 14 wherein said nylon film is uncoated.
References Cited (Backward Citations)
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Cited
US2773791A
Cited
US2808588A
Cited
US3821071A
Cited
US3783449A
Cited
US3891991A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-09-07 | 1985-03-09 | 1985-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-07 | 1989-03-09 | 1989-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-07 | 1993-03-09 | 1993-09-08 | $7700.00 | Window Closed / Lapsed |