Apparatus for forming an interlocking joint
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United States of America Patent
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-
Nov 4, 1997
Grant Date -
N/A
app pub date -
Nov 13, 1996
filing date -
Nov 13, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The template of the present invention is utilized in conjunction with a rotating cutting tool such as a router bit to form a self-mating, repeating, interlocking pattern in the edge of a work piece. The template has a body having an elongated edge having a plurality of notches formed therein. Each notch has two sides and an innermost edge, the notches being spaced along the elongated edge at equal intervals. Each notch has at least one S-shaped side which has an outer curved portion and an inner curved portion, the radius of the inner curved portion being equal to three times the radius of the outer curved portion. The rotating cutting tool is spaced apart from the elongated edge of the template by a distance equal to the radius of the outer curved portion of the S-shaped side wall so that, as the cutting tool is guided along the edge of the template, an interlocking, self-mating pattern is formed in the work piece edge.
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