Compact small diameter log sawmill
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jun 29, 1999
Grant Date -
N/A
app pub date -
May 30, 1997
filing date -
May 30, 1996
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A sawmill that is a compact integrated unit of a multiplicity of components all mounted on a common frame for performing different functions to produce pieces of lumber from a log. Logs can be processed that have a minimum diameter of approximately 2' and a minimum length of approximately 42' with the overall length of the mill being approximately 17'. There are a number of power driven feed and guide rolls that propel a log endwise along a fixed path. The processing components include first and second pairs of chipper canter units with novel chipper heads, a pair of rabbet units in which each has a pair of cutter heads on concentric telescopic shafts and power driven rolls for off-feeding pieces of lumber of differing widths. The log feed speed and/or chipper head speed can be varied to provide chips of selected different lengths. Positioning of the processing units is controlled by a programmed processor unit. The cut pattern and selective use of the edger is dictated by log geometry determined by scanning the logs before processing begins.
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