US4566237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Armored panel
Assignee: GKN Aerospace Transparency Systems Inc
•
Filing: 1983-04-08
•
Granted: 1986-01-28
•
Expires: 2003-04-08
Abstract
Abstract An armored panel construction for a shelter to defeat ballistic fragment and thermal radiation threats comprises an inner structural panel of aluminum alloy sheets bonded to a honeycomb core and an outer face panel of an aramid fiber fabric in a multi-ply resin matrix laminate. The face panel is in a specific spaced relationship to the inner structural panel such that the energy of an impacting projectile is distributed over a large area and the face panel is allowed to flex inwardly in the absorption of such energy.
Inventors
- 👤 Patrick E. Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:09
CPC Classifications
E; E04; E04H; E04H9/00; E04H9/04; E04H9/10; F; F41; F41H; F41H5/00; F41H5/02; F41H5/04; F41H5/0442; F41H5/0457; F41H5/0464; Y; Y10; Y10S; Y10S428/00; Y10S428/911; Y10T; Y10T428/00; Y10T428/24; Y10T428/24149
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
177 words
A configuration for a lightweight and portable shelter having wall and roof panels armored against ballistic fragment and thermal radiation threats comprises in combination: vertical and horizontal aluminum alloy corner extrusions defining a cove angle at an inward extent and forming a skeleton framework of the shelter; inner structural panels supported in the corner extrusions, said structural panels comprising inward and outward facing aluminum alloy sheets bonded to a lightweight honeycomb core, the inward facing sheet mechanically fastened to the cove angle in the corner extrusion; an extruded aluminum alloy cap angle mechanically fastened to the outward facing sheet of the inner structural panel and covering the corner extrusions forming the framework; and an outer face panel comprised of a multi-ply laminate of at least seven plies of an aramid fiber fabric in a resin matrix, said face panel overlapping and mechanically fastened to the cap angle extrusion such that a gap of at least 1.5 mm (0.6 inch) is defined as between the face panel and the outward facing aluminum sheet of the inner structural panel.
Claim 2
Dependent Claim
177 words
A configuration for a lightweight and portable shelter having wall and roof panels armored against ballistic fragment and thermal radiation threats comprises in combination: vertical and horizontal aluminum alloy corner extrusions defining a cove angle at an inward extent and forming a skeleton framework of the shelter; inner structural panels supported in the corner extrusions, said structural panels comprising inward and outward facing aluminum alloy sheets bonded to a lightweight honeycomb core, the inward facing sheet mechanically fastened to the cove angle in the corner extrusion; an extruded aluminum alloy cap angle mechanically fastened to the outward facing sheet of the inner structural panel and covering the corner extrusions forming the framework; and an outer face panel comprised of a multi-ply laminate of at least seven plies of an aramid fiber fabric in a resin matrix, said face panel overlapping and mechanically fastened to the cap angle extrusion such that a gap of at least 1.5 mm (0.6 inch) is defined as between the face panel and the outward facing aluminum sheet of the inner structural panel.
Claim 3
Dependent Claim
27 words
The shelter as set forth in claim 1 wherein the structural panels include aluminum extruded beam reinforcements within the core between the inward and outward facing sheets.
Claim 4
Dependent Claim
17 words
The shelter as set forth in claim 1 wherein the honeycomb core comprises a Kraft paper honeycomb.
Claim 5
Dependent Claim
36 words
The shelter as set forth in claim 1 wherein the face panel comprises a laminate of at least seven plies of 20 oz/sq yd woven roving aramid fiber fabric in a ten percent content resin matrix.
Claim 6
Dependent Claim
44 words
The shelter as set forth in claim 1 wherein the corner extrusions and cap angle combined do not exceed 5.5 pounds per lineal foot in weight and the structural panels and face panels combined do not exceed 3.5 pounds per square foot in weight.
Claim 7
Dependent Claim
22 words
The shelter as set forth in claim 1 wherein the gap between the structural and face panels is at least 0.125 inch.
Claim 8
Dependent Claim
47 words
The shelter as set forth in claim 1 wherein the face panel comprises a laminate of 12 plies of woven roving aramid fiber fabric in a ten percent resin content matrix structural panel and outer face panel is within the range of 1.5 mm-9.5 mm (0.0626-0.375 inch).
References Cited (Backward Citations)
US2380393A
Cited
US3351374A
Cited
US3699842A
Cited
US3604374A
Cited
US3577836A
Cited
US3994105A
Cited
US4323000A
Cited
US4351558A
Cited
US4404889A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-01-27 | 1989-07-29 | 1990-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-27 | 1993-07-29 | 1994-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-27 | 1997-07-29 | 1998-01-28 | $7700.00 | Window Closed / Lapsed |