Plastic sheets for use in protecting openings in walled structures
DCFirst Claim
1. A plurality of corrugated plastic sheets comprising a first corrugated sheet and a second corrugated sheet, each corrugated sheet comprising an intermediate corrugated region and a pair of lateral corrugated regions disposed on opposite sides of said intermediate corrugated region, wherein:
- said intermediate corrugated region comprises at least one substantially planar mounting region and at least one inclined intermediate region projecting away from said planar mounting region in the direction of an adjacent corrugation; and
said pair of lateral corrugated regions comprise lateral corrugations along lateral edges of said sheet, each of said lateral corrugations having a substantially planar mounting region, an intermediate inclined region projecting away from said planar mounting region in the direction of an adjacent corrugation, and a lateral inclined region projecting away from said mounting region in the direction of one of said lateral edges;
said corrugated region and said lateral corrugated regions are configured such that said sheet can resist a missile weighing about 9.4 lbs (4.3 kgs), having a cross-sectional impact area of about 5.25 in2 (34 cm2), and impacting said sheet at a velocity of about 50 ft/s (15.24 m/s);
said lateral inclined region of one of said lateral corrugations of said second sheet overlaps said intermediate inclined region of one of said lateral corrugations of said first sheet for at least a majority of the cross-sectional extent of said intermediate inclined region;
said planar mounting region of said lateral corrugation of said second sheet overlaps said planar mounting region of said lateral corrugation of said first sheet;
said intermediate inclined region of said lateral corrugation of said second sheet overlaps said lateral inclined region of said lateral corrugation of said first sheet for at least a majority of the cross-sectional extent of said intermediate inclined region; and
said lateral corrugations and said corrugations adjacent thereto define corrugations of substantially the same size and geometry.
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Accused Products
Abstract
Sheets and sheet kits for use in protecting openings in a walled structure are provided. The sheets are generally plastic sheets having at least one corrugated region and a pair of lateral corrugated regions. The corrugated region and the lateral corrugated regions are configured such that the sheet can resist a missile weighing about 9.4 lbs (4.3 kgs), having a cross-sectional impact area of about 5.25 in2 (34 cm2), and impacting the sheet at a velocity of about 50 ft/s (15.24 m/s). The sheet kits include mounting tracks. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that is will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).
52 Citations
25 Claims
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1. A plurality of corrugated plastic sheets comprising a first corrugated sheet and a second corrugated sheet, each corrugated sheet comprising an intermediate corrugated region and a pair of lateral corrugated regions disposed on opposite sides of said intermediate corrugated region, wherein:
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said intermediate corrugated region comprises at least one substantially planar mounting region and at least one inclined intermediate region projecting away from said planar mounting region in the direction of an adjacent corrugation; and said pair of lateral corrugated regions comprise lateral corrugations along lateral edges of said sheet, each of said lateral corrugations having a substantially planar mounting region, an intermediate inclined region projecting away from said planar mounting region in the direction of an adjacent corrugation, and a lateral inclined region projecting away from said mounting region in the direction of one of said lateral edges; said corrugated region and said lateral corrugated regions are configured such that said sheet can resist a missile weighing about 9.4 lbs (4.3 kgs), having a cross-sectional impact area of about 5.25 in2 (34 cm2), and impacting said sheet at a velocity of about 50 ft/s (15.24 m/s); said lateral inclined region of one of said lateral corrugations of said second sheet overlaps said intermediate inclined region of one of said lateral corrugations of said first sheet for at least a majority of the cross-sectional extent of said intermediate inclined region; said planar mounting region of said lateral corrugation of said second sheet overlaps said planar mounting region of said lateral corrugation of said first sheet; said intermediate inclined region of said lateral corrugation of said second sheet overlaps said lateral inclined region of said lateral corrugation of said first sheet for at least a majority of the cross-sectional extent of said intermediate inclined region; and said lateral corrugations and said corrugations adjacent thereto define corrugations of substantially the same size and geometry. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A plurality of corrugated plastic sheets comprising a first corrugated sheet and a second corrugated sheet, each corrugated sheet comprising an intermediate corrugated region and a pair of lateral corrugated regions disposed on opposite sides of said intermediate corrugated region, wherein:
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said intermediate corrugated region comprises at least one substantially planar mounting region and at least one inclined intermediate region projecting away from said planar mounting region in the direction of an adjacent corrugation; and said pair of lateral corrugated regions comprise lateral corrugations along lateral edges of said sheet, each of said lateral corrugations having a substantially planar mounting region, an intermediate inclined region projecting away from said planar mounting region in the direction of an adjacent corrugation, and a lateral inclined region projecting away from said mounting region in the direction of one of said lateral edges; said corrugated region and said lateral corrugated regions are configured such that said sheet can resist a missile weighing about 9.4 lbs (4.3 kgs), having a cross-sectional impact area of about 5.25 in2 (34 cm2), and impacting said sheet at a velocity of about 50 ft/s (15.24 m/s); said lateral inclined region of one of said lateral corrugations of said second sheet overlaps said intermediate inclined region of one of said lateral corrugations of said first sheet for at least a majority of the cross-sectional extent of said intermediate inclined region; said planar mounting region of said lateral corrugation of said second sheet overlaps said planar mounting region of said lateral corrugation of said first sheet; said intermediate inclined region of said lateral corrugation of said second sheet overlaps said lateral inclined region of said lateral corrugation of said first sheet for at least a majority of the cross-sectional extent of said intermediate inclined region; and at least one of said corrugated region and said lateral corrugated regions further comprise at least one double key-way type slot adjacent to a top edge of said sheet and at least one double key-way type slot adjacent to a bottom edge of said sheet, wherein said double key-way type slots are disposed on said planar mounting region to receive a fastener having a head and a shank, said double key-way type slots comprise an enlarged portion larger than said head of said fastener and upper and lower portions smaller than said head of said fastener, and said double key-way type slots are positioned adjacent to said top and bottom edges of said sheet such that said corrugated sheets can be utilized without the need to distinguish between said top and bottom edges of said sheet.
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Specification