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US4774724A Expired / Lapsed US ⏱️ 0.0 years remaining

Protective garments

Assignee: ARMORSHIELD LLC
•
Filing: 1987-07-21
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Granted: 1988-10-04
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Expires: 2007-07-21
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Abstract

Abstract A protective garment, such as a bullet-proof vest, has multiple layers of penetration-resisting aramid fabric within an outer cover. A trauma pack is mounted on the garment to reinforce the protective action of the aramid fabric layers. The trauma pack is detachably mounted so that the garment can be used with or without the pack in position. Within the trauma pack there is a sheet of impact-absorbing plastics material, particularly a polycarbonate sheet, and this may be backed with a foamed plastics layer.

Inventors

  • 👤 Michael Sacks

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 16:03
CPC Classifications
F; F41; F41H; F41H1/00; F41H1/02

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 303 words
A protective garment to be worn by a person comprising: a first semi-stiff part having multiple layers of penetration resisting aramid fabric extending throughout the entire first part contained within an outer cover having a front and a rear surface and defining in itself a self-contained protective garment suitable for protecting against low levels of threat; first fixing devices being provided on an external surface of said cover which surface, when the garment is worn faces towards the body of the wearer; a second separate detachable self-contained part comprising a semi-stiff trauma pack extending only over a minority of the area of said garment and attached to the exterior rear surface of the cover for protecting against high levels of threat by spreading the impact or force by deflection thereby limiting any appreciable rear buldging which would cause injury by transmitting shock or trauma; said semi-stiff pack being enclosed in a nylon bag having a front and rear surface and containing multiple layers of protective material wherein: the first said layer is of kevlar fabric at the front of the nylon bag and closest to the semi-stiff part; a second layer is a thin flexible semi-stiff polycarbonate sheet having sides and being about 0.75 mm in thickness and acting as a reinforcing layer of protective material attached to and supporting the top layer of kevlar fabric sheets; a third layer comprises a plurality of compressible foamed plastic material sheets acting as a reinforcing layer, attached and supporting the second layer of flexible semi-stiff polycarbonate sheets; second fixing devices on the front surface of said bag containing said trauma pack and said first and second fixing devices being detachably cooperable with each other to hold said trauma pack firmly yet removable in face to face contact with said inwardly facing surface of said cover.
Claim 2
Dependent Claim 303 words
A protective garment to be worn by a person comprising: a first semi-stiff part having multiple layers of penetration resisting aramid fabric extending throughout the entire first part contained within an outer cover having a front and a rear surface and defining in itself a self-contained protective garment suitable for protecting against low levels of threat; first fixing devices being provided on an external surface of said cover which surface, when the garment is worn faces towards the body of the wearer; a second separate detachable self-contained part comprising a semi-stiff trauma pack extending only over a minority of the area of said garment and attached to the exterior rear surface of the cover for protecting against high levels of threat by spreading the impact or force by deflection thereby limiting any appreciable rear buldging which would cause injury by transmitting shock or trauma; said semi-stiff pack being enclosed in a nylon bag having a front and rear surface and containing multiple layers of protective material wherein: the first said layer is of kevlar fabric at the front of the nylon bag and closest to the semi-stiff part; a second layer is a thin flexible semi-stiff polycarbonate sheet having sides and being about 0.75 mm in thickness and acting as a reinforcing layer of protective material attached to and supporting the top layer of kevlar fabric sheets; a third layer comprises a plurality of compressible foamed plastic material sheets acting as a reinforcing layer, attached and supporting the second layer of flexible semi-stiff polycarbonate sheets; second fixing devices on the front surface of said bag containing said trauma pack and said first and second fixing devices being detachably cooperable with each other to hold said trauma pack firmly yet removable in face to face contact with said inwardly facing surface of said cover.
Claim 3
Dependent Claim 22 words
A garment as specified in claim 1 wherein the thickness of the foamed plastic sheet is between 5 mm and 12 mm.
Claim 4
Dependent Claim 18 words
A garment as specified in claim 1 wherein the fixing devices comprise respective multiple hook and loop structures.

References Cited (Backward Citations)

US4497069A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-10-04 1992-04-04 1992-10-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-10-04 1996-04-04 1996-10-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-10-04 2000-04-04 2000-10-04 $7700.00 Window Closed / Lapsed

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