Patent US3596690A successfully refreshed from Google Patents.
US3596690A
Expired / Lapsed
US
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Delimber cutters, delimber and tree processing feed means
Assignee: Abitibi Paper Co Ltd
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Filing: 1969-07-11
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Granted: 1971-08-03
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Expires: 1989-07-11
Abstract
Abstract A delimber arm for use in delimbing trees and which may be mounted on a frame, the arm being segmented and with the segments resiliently urged into position with respect to one another whereby the arm or several arms open and close like an iris to closely follow the trunk of a tree having relatively wide variations in diameter. A delimber further incorporating delimbing members of the foregoing type and means for feeding a tree or group of trees endwise through the delimber incorporating hydraulic systems for urging the feed rolls against the tree with a force proportional to the force required to propel the tree through the delimber. Further, a tree delimber incorporating a frame having a notch in the upper surface for supporting one or more trees and one or more cutting members pivotally mounted on the frame and arranged to move toward and away from the recess in the frame for removing limbs from trees moved relative thereto.
Inventors
- 👤 Douglas D Hamilton
- 👤 Joseph J R Boivin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:35
CPC Classifications
A; A01; A01G; A01G23/00; A01G23/02; A01G23/095; A01G23/097
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
62 words
In a machine of the type having a feeding means adapted to make and break pressure contact with a workpiece and also adapted to move said workpiece relative thereto, means for increasing and decreasing the contact pressure of said feeding means on said workpiece, and means interrelating said contact pressure and the force necessary to move said workpiece by said feeding means.
Claim 2
Dependent Claim
62 words
In a machine of the type having a feeding means adapted to make and break pressure contact with a workpiece and also adapted to move said workpiece relative thereto, means for increasing and decreasing the contact pressure of said feeding means on said workpiece, and means interrelating said contact pressure and the force necessary to move said workpiece by said feeding means.
Claim 3
Dependent Claim
95 words
In a tree processing machine including one or more processing units and feed means for propelling trees longitudinally through said processing unit or units, said feed means comprising at least one feed roll tractively engageable with the surface of said trees, means for selectively moving said feed roll towards and away from a tree or trees to be propelled thereby through said processing units, means to increase or decrease the contact pressure of said feed roll on the tree being propelled, and means interrelating said contact pressure and the force necessary to propel the tree.
Claim 4
Dependent Claim
95 words
In a tree processing machine including one or more processing units and feed means for propelling trees longitudinally through said processing unit or units, said feed means comprising at least one feed roll tractively engageable with the surface of said trees, means for selectively moving said feed roll towards and away from a tree or trees to be propelled thereby through said processing units, means to increase or decrease the contact pressure of said feed roll on the tree being propelled, and means interrelating said contact pressure and the force necessary to propel the tree.
Claim 5
Dependent Claim
23 words
The apparatus as defined in claim 2 wherein the means to increase or decrease the pressure by said feed roll includes hydraulic means.
Claim 6
Dependent Claim
53 words
A machine as defined in claim 2, wherein said feed roll is driven by a first hydraulic motor and is movable into and out of engagement with the work piece by a second hydraulic motor, and means supplying fluid pressure to said second motor in response to powered demand of said first motor.
Claim 7
Dependent Claim
127 words
A tree processing assembly comprising in combination: a. at least one processing unit having a selected feed path along which a tree travels endwise during processing thereof; b. at least one driven feed means mounted on said assembly to pivot about a selected axis; c. means for moving said feed means toward and away from selected path for tractively engaging a tree located therein; d. first power means for driving said feed means to propel a tree engaged thereby; e. second power means for moving said feed means; and f. means interrelating movement of said feed means and driving force on the same increasing pressural contact of the feed means on the tree in response to an increase in power required to propel the tree engaged thereby.
Claim 8
Dependent Claim
127 words
A tree processing assembly comprising in combination: a. at least one processing unit having a selected feed path along which a tree travels endwise during processing thereof; b. at least one driven feed means mounted on said assembly to pivot about a selected axis; c. means for moving said feed means toward and away from selected path for tractively engaging a tree located therein; d. first power means for driving said feed means to propel a tree engaged thereby; e. second power means for moving said feed means; and f. means interrelating movement of said feed means and driving force on the same increasing pressural contact of the feed means on the tree in response to an increase in power required to propel the tree engaged thereby.
Claim 9
Dependent Claim
29 words
A tree processing assembly as defined in claim 5, wherein said driven feed means comprises at least two Feed rollers rotatable about axes substantially perpendicular to said feed path.
References Cited (Backward Citations)
US3351107A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |