Static structures (e.g. – buildings) – Lapped multiplanar surfacing; e.g. – shingle type – Plural tabs or facing elements simulator
Reexamination Certificate
1999-09-22
2001-09-18
Gibson, Jr., Robert W. (Department: 3634)
Static structures (e.g., buildings)
Lapped multiplanar surfacing; e.g., shingle type
Plural tabs or facing elements simulator
C052S314000, C052S518000, C052S554000
Reexamination Certificate
active
06289648
ABSTRACT:
BACKGROUND
The present invention relates generally to the construction of a roofing shingle. In particular, the present invention relates to the construction of an asphalt roofing shingle utilizing a unique combination of exposure dimension and arrangement of color striations thereon to create a greater visual impact than existing asphalt shingles.
Asphalt shingles (sometimes also often referred to as composite shingles) are one of the most commonly used roofing materials. Asphalt shingles typically comprise an organic felt or fiberglass mat base on which is applied an asphalt coating. The organic felt or fiberglass mat base gives the asphalt shingle the strength to withstand manufacturing, handling, installation and servicing, and the asphalt coating provides resistance to weathering and stability under temperature extremes. An outer layer of mineral granules is also commonly applied to the asphalt coating to form a weather surface which shields the asphalt coating from the sun's rays, adds color to the final product, and provides fire resistance.
Asphalt shingles are typically manufactured as strip shingles, laminated shingles, interlocking shingles, and large individual shingles in a variety of weights and colors. Even though asphalt shingles offer significant cost, service life, and fire resistance advantages over wood shingles, wood shingles are often preferred due to their pleasing aesthetic features, such as their greater thickness as compared to asphalt shingles, which results in a more pleasing, layered look for a roof.
Various asphalt shingles have been developed to provide an appearance of thickness comparable to wood shingles. Examples of such asphalt shingles are shown in U.S. Pat. No. 5,232,530 entitled “Method of Making a Thick Shingle”; U.S. Pat. No. 3,921,358 entitled “Composite Shingle”; U.S. Pat. No. 4,717,614 entitled “Asphalt Shingle”; and U.S. Pat. Des. No. D309,027 entitled “Tab Portion of a Shingle.” Each of these patents is incorporated by reference herein in its entirety.
In addition to these patents, significant improvements in the art of roofing shingles have been disclosed and patented in U.S. Pat. Nos. 5,369,929; 5,611,186; and 5,666,776; each entitled “Laminated Roofing Shingle”, issued to Weaver et al. and assigned to the Elk Corporation of Dallas. These patents disclose laminated roofing shingles having a color gradient or gradation thereon to create the illusion of thickness or depth on a relatively flat surface. These patents are also incorporated by reference herein in their entireties. The present invention substantially improves on the roofing shingles described in the above-identified patents.
SUMMARY OF THE INVENTION
According to the present invention, there is provided a roofing shingle that includes a unique combination of exposure dimension and arrangement of color striations thereon to provide a greater visual impact than existing asphalt shingles. In accordance with one aspect of the present invention, there is provided a laminated roofing shingle having a first shingle sheet and a second shingle sheet. The first shingle sheet has a headlap section and a buttlap section, the buttlap section being about 7 inches or greater in height and including a plurality of tabs which are spaced apart to define one or more openings between the tabs. Each of the tabs has a relatively uniform color throughout the tab. The relatively uniform color throughout the tab may very in contrast between each of the tabs. The second shingle sheet is attached to the underside of the first shingle sheet and has portions exposed through the openings between the tabs. The second shingle sheet has at least first, second, third, and fourth horizontal striations thereon across at least partial portions of the second sheet which are exposed through the openings between the tabs. The first striation has a substantially uniform dark color throughout a first quadrilateral area. The second striation includes a second elongated quadrilateral area below the first striation. The second striation has a substantially uniform color throughout the second quadrilateral area. The third striation includes a third elongated quadrilateral area below the second striation. The third striation has a substantially uniform color throughout the third quadrilateral area, which is lighter than the color of the second striation. The fourth striation includes a fourth elongated quadrilateral area below the third striation. The fourth striation has a substantially uniform color throughout the fourth quadrilateral area, which is lighter than the color of the third striation. At least the second, third, and fourth striations provide a color gradation on at least partial portions of the second sheet which are exposed through the openings between the tabs. The color of the first striation may be selected to be consistent with (i.e., to continue) the color gradation of the second through fourth striations.
Other aspects of the present invention include methods for manufacturing the above-described laminated shingle.
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Freshwater John G.
Hudson, Jr. Willard Calvin
Maytubby Clark Daniel
McLintock Michael Allen
Reed Larry Scott
Baker & Botts L.L.P.
Elk Corporation of Dallas
Gibson , Jr. Robert W.
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