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US3631905A
Expired / Lapsed
US
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Arrangement for felling and stacking trees for transport
Assignee: Ostbergs Fabriks AB
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Filing: 1970-03-24
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Granted: 1972-01-04
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Expires: 1990-03-24
Abstract
Abstract The invention refers to an arrangement for felling and stacking trees for transport, using a vehicle for driving a stacking support and having a horizontally swingable and vertically adjustable boom provided at its end with a felling unit. Hitherto at least two men have been necessary for this work, one for the felling and one for the stacking work. According to the invention, only one man, the driver of the vehicle, is required who from the driver''s seat can select a tree to be felled and by means of a rotatable felling unit so direct the fall of the tree that its top approximately falls to the longitudinal extension of the support centerline, whereafter he can lift the root end of the tree for pulling the tree towards and onto the support.
Inventors
- 👤 Bengt Haldo Karlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:44
CPC Classifications
A; A01; A01G; A01G23/00; A01G23/02; A01G23/08
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
180 words
Apparatus for felling and stacking trees for transport comprising, a vehicle, a felled tree stacking support associated therewith, a boom mounted on said vehicle, means for rotating said boom in a horizontal plane and for moving the end of said boom vertically with respect to said vehicle, a horizontal shaft mounted at the free end of said boom, a felling unit mounted for rotation about said horizontal shaft, said felling unit including a guide member adapted to be seated against a tree trunk, a trunk gripping means and cutting means positioned below and spaced laterally from said guide member and gripping means, a vertical shaft mounted at the free end of said boom, means for mounting said felling unit for rotation in a horizontal plane about said vertical shaft whereby the top of a tree, when felled will fall substantially on the extended centerline of said stacking support, and the root end of the felled tree may be raised and rotated by said boom towards and onto said stacking support to properly locate the felled tree on said stacking support.
Claim 2
Dependent Claim
180 words
Apparatus for felling and stacking trees for transport comprising, a vehicle, a felled tree stacking support associated therewith, a boom mounted on said vehicle, means for rotating said boom in a horizontal plane and for moving the end of said boom vertically with respect to said vehicle, a horizontal shaft mounted at the free end of said boom, a felling unit mounted for rotation about said horizontal shaft, said felling unit including a guide member adapted to be seated against a tree trunk, a trunk gripping means and cutting means positioned below and spaced laterally from said guide member and gripping means, a vertical shaft mounted at the free end of said boom, means for mounting said felling unit for rotation in a horizontal plane about said vertical shaft whereby the top of a tree, when felled will fall substantially on the extended centerline of said stacking support, and the root end of the felled tree may be raised and rotated by said boom towards and onto said stacking support to properly locate the felled tree on said stacking support.
Claim 3
Dependent Claim
30 words
Apparatus as claimed in claim 1 and further comprising means for controlling rotation of the felling unit about said horizontal shaft and for controlling rotation thereof about said vertical shaft.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-03 | 1975-07-05 | 1976-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-03 | 1979-07-05 | 1980-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-03 | 1983-07-05 | 1984-01-04 | $7700.00 | Window Closed / Lapsed |