Appeal No. 2003-0414 Page 7
Application No. 09/833,831
the wall for supporting the main runners 12 or cross members 13 resting thereon. The
main runners 12 and the cross members 13 are all of inverted T-shaped in cross
section so as to form a vertical fin 20 or 21 extending upwardly from a pair of horizontal
flanges 22 or 23.
Blubaugh
Blubaugh's invention relates, in general, to a wallboard or drywall system, and, in
particular, to a wallboard or drywall system marked with a grid system to facilitate the
installation of wallboard or drywall and utilizing two types of vapor barriers. As shown in
Figure 2, each wallboard panel 2 has a gridwork consisting of vertical lines 5 and
horizontal lines 6. Where the lines 5, 6 cross they form a square 8. This gridwork
pattern can be printed, or applied by any other conventional method, in any color on the
back of the panel 2. Each of the squares 8 measure one inch on each side, and the
total number of squares can vary from 48 by 96 to 48 by 144 depending on the size of
the wallboard. Since the squares are one inch on each side, it will be easy and
convenient for workers to cut panels without resorting to marking the panels using
conventional measuring instruments (tape measure) and pencil or chalk lines. This will
minimize the amount of time required to install drywall.
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