Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Duane Anthony Barlow0
David Charles Princz0
Date of Patent
January 25, 2011
Patent Application Number
11423747
Date Filed
June 13, 2006
Patent Primary Examiner
Patent abstract
In a tree handling device, where the tree is fed longitudinally through at least three drive wheels driven by a fixed-displacement hydraulic pump, feeding commences with all drive wheels simultaneously propelling the tree longitudinally through the knife arms and frame. During feeding, once the approximate maximum feeding speed of the drive wheels is achieved, one of the drive wheels is shifted to a free-wheeling condition, allowing the maximum feed speed to increase.
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