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US 4,625,781 AGranted
Saw carrier assembly for tree falling apparatus
AssigneeNorthern Manufacturing Limited
InventorsJerry L. Miller, Frank E. Jaenicke, Quentin C. Lodge
Life of this patent
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AssigneeNorthern Manufacturing Limited
InventorsJerry L. Miller, Frank E. Jaenicke, Quentin C. Lodge
Estimating the term…
A saw carrier assembly has a loop of saw chain and a powered sprocket to drive the saw chain. The assembly also has a saw chain journalling structure having a rotatable circular periphery cooperating with the saw chain to mount the chain to rotate therewith to reduce friction and to resist sawing forces. The saw journalling structure and sprocket cooperate with a saw support structure so that the chain saw extends as a loop around the sprocket and journalling structure. The journalling structure has a thickness less than the kerf produced by the saw to permit a portion of the saw journalling structure to pass into the kerf with negligible interference therewith. This enables a tree to be cut using a saw journalling structure of slightly less diameter than diameter of the tree where it is cut, and reduces frictional losses normally associated with a fixed chain saw support bar.
A saw carrier assembly for a loop of saw chain which is adapted to produce a kerf in a workpiece, the assembly having:
An apparatus for falling trees, the apparatus being adapted to be mounted on a movable vehicle and having a saw carrier assembly which is adapted to cooperate with a loop of saw chain to produce a kerf in a tree, the saw carrier assembly having:
Dependencies are inferred from the claim text.