High-energy impact absorbing polycarbonate mounting method
First Claim
1. A method of mounting a blast-resistant barrier having two parallel sides comprising:
- attaching the blast-resistant barrier to a semi-rigid metallic frame along two parallel sides of the barrier,wherein the blast-resistant barrier is from about 0.375 inches to about 1.5 inches in thickness and includes at least one polycarbonate sheet,wherein the semi-rigid metallic frame is made of one selected from the group consisting of carbon steel, stainless steel and aluminum; and
placing the blast-resistant barrier at a location between a surface of a target to be protected and a potential blast location,wherein the blast-resistant barrier flexes in a biaxial mode,wherein the blast-resistant barrier is capable of flexing to a pressure load of 6.5 psi and an impulse load of 61 psi-msec, and returning to its original position after flexing.
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Accused Products
Abstract
The present invention provides a bi-active method of mounting a monolithic polycarbonate sheet or a laminate in a semi-rigid metallic framing system along two parallel sides of a rectangular shaped sheet or laminate with the two shorter parallel sides being unconstrained. In the case of a square shaped sheet, two parallel sides are supported in the semi-rigid frame, and the other two parallel sides are unconstrained. The semi-rigid frame utilizes cylindrically shaped hardware (i.e., bolts, rivets, studs, etc.) to hold the sheet or laminate. The semi-rigid frame is designed, via section and material properties, to flex and hinge about fixed mounting points along the length of the frame.
26 Citations
23 Claims
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1. A method of mounting a blast-resistant barrier having two parallel sides comprising:
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attaching the blast-resistant barrier to a semi-rigid metallic frame along two parallel sides of the barrier, wherein the blast-resistant barrier is from about 0.375 inches to about 1.5 inches in thickness and includes at least one polycarbonate sheet, wherein the semi-rigid metallic frame is made of one selected from the group consisting of carbon steel, stainless steel and aluminum; and placing the blast-resistant barrier at a location between a surface of a target to be protected and a potential blast location, wherein the blast-resistant barrier flexes in a biaxial mode, wherein the blast-resistant barrier is capable of flexing to a pressure load of 6.5 psi and an impulse load of 61 psi-msec, and returning to its original position after flexing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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10. A method of mounting a blast-resistant barrier having two parallel sides comprising:
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attaching the blast-resistant barrier to a semi-rigid metallic frame along two parallel sides of the barrier, wherein the blast-resistant barrier is from about 0.375 inches to about 1.5 inches in thickness and includes at least two polycarbonate sheets having an image layer interposed between the polycarbonate sheets, wherein the semi-rigid metallic frame is made of one selected from the group consisting of carbon steel, stainless steel and aluminum, wherein the image layer contains at least one member selected from the group consisting of fabric, photograph, paper, wire, screen, rod, bar, grass and plant; and placing the blast-resistant barrier at a location between a surface of a target to be protected and a potential blast location, wherein the blast-resistant barrier flexes in a biaxial mode, wherein the blast-resistant barrier is capable of flexing to a pressure load of 6.5 psi and an impulse load of 61 psi-msec, and returning to its original position after flexing. - View Dependent Claims (11, 22, 23)
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Specification