1. Field of the Invention
The invention disclosed herein relates to a military vehicle window cover for protecting an underlying windshield, and more specifically to a military vehicle window cover using a combination of mirrors and plates of bullet-proof armor to deflect or stop incoming fire while allowing unobstructed visibility through the vehicle's window.
2. Description of the Background of the Invention
Bullet-resistant glass-pane windows, while offering some improvement to battle zone survivability, have by nature many unwanted traits that have limited their effectiveness at maintaining functionality of a vehicle under fire and safety of the occupants within that vehicle. A bullet-resistant window is a multi-layered assembly of plastic and glass, held in place with a single welded frame and adds hundreds of pounds of excess weight to a vehicle, causing a high cost of replacement when damaged and vehicle performance to suffer due to the added weight. Additionally, with the layered construction of a bullet-resistant window, night vision gear is rendered inoperable and loss of visibility through the window is a certainty due to the shattering of the bullet-resistant glass when projectiles, such as bullets and shrapnel, hit its surface.
Improvements have been made in this art, notably U.S. Pat. No. 5,452,641, which proposes a transparent armor piercing protection system with angled, mirrored louvers in an aperture with a sheet of transparent armor provided adjacent to the aperture. When a projectile strikes the louvers, the louvers will either stop the projectile or cause it to fragment, with the remaining fragments stopped by the adjacent sheet of transparent armor. The solution of louvers themselves does not essentially solve the problems of weight or visibility loss, as each louver is constructed to stop or fragment projectiles, adding to the overall weight and marring the mirrored surface of each louver. Additionally, the adjacent sheet of transparent armor fractures when stopping or deflecting projectiles, and loss of vision still occurs.
Accordingly, it is an object of the present invention to provide a window cover apparatus that provides an unobstructed view through a window while offering armored protection to the window through a system of mirrored surfaces and armored plates.
It is a further object of the present invention to provide a window cover apparatus that can withstand several of projectile hits without loss of function.
It is a further object of the present invention to provide a window cover apparatus that will not hinder the function of night vision equipment.
According to one aspect of the present invention, there is provided a window cover for protection of a vehicle window including an upper armored plate with an upper reflective covering disposed on its underside. Such upper armored plate is mounted at an angle to a vehicle window to provide the greatest range of visibility. A lower armored plate is mounted adjacent a lower portion of the vehicle window. Side armor plates on either end of all of the plates secure such plates within a housing. A lower reflective plate is mounted parallel to the upper armored plate with an upper reflective covering and in front of the lower armored plate, secured at its ends also by the side armor plates. Such parallel mounted upper reflective covering and lower reflective plate function as mirrors and send the light from outside a military vehicle reflecting off the lower reflective plate onto the upper reflective covering, and reflecting off the upper reflective covering into the vehicle where it is perceived by the eyes of the occupant as the view outside the military vehicle. The lower reflective plate is designed to allow the passage of projectiles, such as bullets.
A window cover 10 is shown in
As further seen in
The window cover 10 further includes a lower armored plate 18 directly adjacent and overlying a lower portion of the vehicle window 32, also secured by side armored plates 15 on either end. A lower reflective plate 16 is mounted at an angle over plate 18, parallel to and partially under, upper plates 12 and 14. Lower reflective plate 16 is preferably made of a top polished metal layer 17 with a reflective outward-facing surface applied over a bottom layer 19, preferably made of a lightweight foam, aluminum honeycomb, or plastic material that adds structural integrity to the plate 16. As shown in
In operation, the window cover 10 is removably attached over a vehicle window 32 of a military vehicle 30 where it can easily be removed and replaced as needed. As a military vehicle 32 receives fire or is hit with projectiles 50, the window cover 10 provides a protection system for stopping such bullets, shrapnel and the like from piercing through the vehicle window 32, entering the military vehicle 30, and possibly injuring an occupant 40.
As projectiles 50 are projected toward the window cover 10, the upper armored plate 12 will deflect such projectiles 50 and protect the upper reflective plate 14 disposed on the underside of plate 12 from penetration. As such, plate 14 is not exposed to penetration from incoming projectiles 50. However, the lower reflective plate 16 sitting below plates 12 and 14 is exposed to incoming projectiles 50. As a projectile hits plate 16, it passes through cleanly and proceeds in its path until stopped by lower armored plate 18, where the incoming projectiles 50 are deflected or stopped. As the lower reflective plate 16 does not perform the function of stopping the projectiles 50, it does not receive the brunt of the damage and maintains its function as a reflective mirror to project the image outside the vehicle window 32 to the military vehicle occupant 40.
Light coming into the window cover 10 is first reflected off lower plate 16 onto upper reflective plate 14. Plate 14 then reflects the light toward the occupant 40 where it is received as a non-distorted wide-angle image of the view outside the vehicle window 32 as if the window cover 10 was not in place.
The detailed description related herein is meant only to exemplify the preferred embodiment of the invention to enable those skilled in the art to make and use it. The subject invention is not to be limited to the details given above for the preferred embodiment, but may be modified within the scope of the impending claims.
This application is a continuation of Provisional Application No. 60/644,116 filed Jan. 14, 2005, and claims the benefit thereof.
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Number | Date | Country | |
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60644116 | Jan 2005 | US |