Appeal 2007-1934
Application 09/993,443
1 whereby said drilling step and said forcing step are sequentially
2 performed while said plurality of wooden boards are laterally and
3 vertically compressed and the helical threads of said plurality of
4 helical pins become anchored within each of said wooden boards
5 thereby fixing and maintaining said wooden boards in relative
6 position.
7 14. A method of increasing the strength of a wooden scaffolding
8 plank comprising the steps of:
9 cutting said plank longitudinally into a plurality of wooden
10 plank sections; positioning said plurality of wooden plank sections in
11 side to side parallel abutment with the wood grains of said plurality of
12 wooden plank sections having alternating directions, each of said
13 wooden plank sections including two sides and a lengthwise direction,
14 each of said sides being flat and having a height and said height being
15 the smallest dimension of said wooden plank sections;
16 compressing said plurality of wooden boards vertically so that
17 the top surfaces of said plurality of wooden boards are co-planar and
18 concurrently compressing said plurality of wooden boards
19 transversely before revolvingly embedding at least three spaced
20 helical pins; positioning a drill at a lateral outside edge of said
21 plurality of wooden boards;
22 said drill having a drilling axis;
23 a pin press having a pin press axis;
5
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