Woodworking – Process – Timber harvesting or processing
Reexamination Certificate
2010-10-27
2011-12-06
Walczak, David J. (Department: 3751)
Woodworking
Process
Timber harvesting or processing
C144S336000
Reexamination Certificate
active
08069888
ABSTRACT:
The present disclosure relates to methods for reducing warp potential of lumber derived from a raw material, such as a log or stem are provided. In some embodiments, the methods involve examining the log or stem for shrinkage properties and/or properties of spiral grain. The location of the shrinkage properties and/or properties of spiral grain may be used to determine how the log is oriented relative to a cutting device. In some embodiments, these characteristics may determine what cutting pattern is selected for creating the lumber or how a stem is bucked.
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Chiang Jennifer C
Vaughn Rachael
Walczak David J.
Weyerhaeuser NR Company
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