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US 7,243,693 B1Granted
Log debarking machine and method
AssigneeMellott Manufacturing Co., Inc.
InventorSamuel H. Mellott
Life of this patent
Estimating the term…
Abstract
A log debarking machine includes a rotary cutter head on a debarking arm. The arm is pivotally mounted on a car so that the head engages a rotating log. The weight of the arm is supported by an elastomer spring to improve debarking engagement between the head and the log.
Claims25
Apparatus for removing bark from logs, the apparatus comprising:
- an elongate base;
- a rotary log support on the base;
- a log support drive to rotate a log on the log support during debarking;
- a rail on the base, the rail extending along one side of the log support;
- a car movably mounted on the rail;
- a car drive on the base to move the car to a desired position for debarking a log on the log support;
- a debarking arm on the car, the arm having an inner end located over the log support and an outer end away from the log support;
- a rotary cutter head on the inner end of the arm to debark a log on the log support;
- a pivot connection between the arm and the car permitting pivoting of the arm to move the head toward and away from the log support;
- and an elastomer spring, the elastomer spring having a first end coupled to the arm and a second end coupled to the car to support the head during movement of the head toward and away from a log rotated by the log support, wherein the head follows the surface of the log and debarks depressions and projections on the log.
7 more elements
Apparatus for removing bark from logs, the apparatus comprising:
- a rotary log support;
- and
- a debarker assembly including,
- a body located adjacent the log support,
- a pivot arm having an inner end located over the log support,
- a rotary debarking head on the inner end of the arm for debarking logs rotated by the log support,
- a pivot connection between the arm and the body wherein the arm is pivotable to move the head between elevated and lowered positions for engagement with different size logs on the log support, and
- an elastomer spring connected between the body and the arm to support the arm during debarking, the elastomer spring arranged to exert a spring force on the arm urging the head towards the elevated position when the head is away from the elevated position.
5 more elements
Apparatus for removing bark from logs, the apparatus comprising:
- a rotary log support;
- and
- a debarker assembly including,
- a body located adjacent the log support,
- a head support member,
- a rotary debarking head on the member for debarking logs rotated by the log support,
- a mounting connection between the member and the body wherein the rotary debarking head is movable between elevated and lowered positions, and
- an elastomer spring connected between the member and the body to support the rotary debarking head during debarking, the elastomer spring arranged to exert a spring force on the member urging the rotary debarking head toward the elevated position.
5 more elements
Dependencies are inferred from the claim text.