US3683979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Timber harvester
Assignee: Individual
•
Filing: 1970-07-22
•
Granted: 1972-08-15
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Expires: 1990-07-22
Abstract
Abstract Disclosed herein is a timber harvester in the form of a vehicle which comprises in unitary assembly, a main frame propelled by endless tracks, a forward boom which supports a timber felling chain saw, a log grapple, a delimber which includes a rotor with an axial throat for receiving felled timber, and four circumferentially arranged cutters that are movable at an acute angle relative to the throat to sever limbs from the felled timer, a feed mechanism for drawing the timber through the delimber, a cut-off saw swingably mounted for movement transverse to the linear feed path to cut the timber into predetermined lengths and a log unloading assembly for palletizing or stacking the cut logs.
Inventors
- 👤 Waino Peltola
- 👤 Ervin W Braski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:00
CPC Classifications
A; A01; A01G; A01G23/00; A01G23/02; A01G23/08; A01G23/091
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
189 words
A timber harvester vehicle comprising a vehicle chassis, a forward boom mounted on said chassis, a saw carrier frame, means for mounting said carrier frame on said forward boom to afford vertical swinging movement of said carrier frame about a first horizontal axis, means for mounting said carrier frame to said forward boom for vertical swinging movement about a second horizontal axis, means for turning said carrier frame about a generally vertical axis, a saw bracket, a cutter bar mounted on said saw bracket, a cutter chain carried by said cutter bar, a motor mounted on said saw bracket, said motor having an output shaft in driving engagement with said saw chain, means for mounting said saw bracket on said carrier frame to afford movement of said cutter bar in a linear cutting path, a guide member resiliently and elastomerically mounted on and cantilevered from said carrier frame and extending from said carrier frame and a sleeve on said saw bracket reciprocable on said guide member to guide linear movement of said cutter bar, and a spike bar mounted on said carrier frame adapted to engage a tree trunk.
Claim 2
Dependent Claim
189 words
A timber harvester vehicle comprising a vehicle chassis, a forward boom mounted on said chassis, a saw carrier frame, means for mounting said carrier frame on said forward boom to afford vertical swinging movement of said carrier frame about a first horizontal axis, means for mounting said carrier frame to said forward boom for vertical swinging movement about a second horizontal axis, means for turning said carrier frame about a generally vertical axis, a saw bracket, a cutter bar mounted on said saw bracket, a cutter chain carried by said cutter bar, a motor mounted on said saw bracket, said motor having an output shaft in driving engagement with said saw chain, means for mounting said saw bracket on said carrier frame to afford movement of said cutter bar in a linear cutting path, a guide member resiliently and elastomerically mounted on and cantilevered from said carrier frame and extending from said carrier frame and a sleeve on said saw bracket reciprocable on said guide member to guide linear movement of said cutter bar, and a spike bar mounted on said carrier frame adapted to engage a tree trunk.
Claim 3
Dependent Claim
50 words
The timber harvester of claim 1, wherein said means for mounting said saw bracket on said carrier frame to afford movement of said cutter bar in a linear cutting path comprises a power cylinder with said cylinder connected to said carrier frame and said piston connected to said saw bracket.
Claim 4
Dependent Claim
146 words
The device of claim 1 wherein said means for mounting said carrier frame on said forward boom for movement about a first horizontal axis comprises a saw boom having an upper end pivotally connected to said forward boom, and a power cylinder, said cylinder having a piston rod pivotally connected to said saw boom intermediate its length, said cylinder being pivotally connected to said said forward boom at a point spaced from the pivotal connection of said saw boom to said forward boom, and wherein said means connecting said carrier frame to said forward boom for movement about a second horizontal axis comprises an arm with one end of said arm being pivotally connected to said saw boom and the other end of said arm connected to said carrier frame, and a power cylinder pivotally connected to said arm and pivotally connected to said saw boom.
Claim 5
Dependent Claim
146 words
A timber harvester vehicle comprising a vehicle chassis, boom means connected to said chassis, a saw carrier frame, a saw bracket, a cutter bar mounted on said saw bracket, a cutter chain carried by said cutter bar, a motor mounted on said saw bracket, said motor having an output shaft in driving engagement with said saw chain, means for mounting said saw bracket on said carrier frame to afford movement of said cutter bar in a cutting path, and means for mounting said carrier frame on said boom means for turning movement of said carrier frame about a generally vertical axis, said means comprising a housing connected to said boom means, a rotary hydraulic cylinder supported by said housing, said cylinder having an output shaft connected to said carrier frame to support said carrier bracket and to turn said carrier frame about a generally vertical axis.
Claim 6
Dependent Claim
146 words
A timber harvester vehicle comprising a vehicle chassis, boom means connected to said chassis, a saw carrier frame, a saw bracket, a cutter bar mounted on said saw bracket, a cutter chain carried by said cutter bar, a motor mounted on said saw bracket, said motor having an output shaft in driving engagement with said saw chain, means for mounting said saw bracket on said carrier frame to afford movement of said cutter bar in a cutting path, and means for mounting said carrier frame on said boom means for turning movement of said carrier frame about a generally vertical axis, said means comprising a housing connected to said boom means, a rotary hydraulic cylinder supported by said housing, said cylinder having an output shaft connected to said carrier frame to support said carrier bracket and to turn said carrier frame about a generally vertical axis.
Claim 7
Dependent Claim
101 words
A timber harvester in accordance with claim 1 including a heel boom for directional felling of trees, said heel boom having one end pivotally connected to said carrier frame and a free end adapted to engage a tree trunk, and a hydraulic cylinder for moving said boom about said pivot, said cylinder having one end pivotally connected to said carrier bracket at a point spaced from said connection of said heel boom to said carrier frame and the other end of said power cylinder being pivotally connected to said heel boom at a point intermediate the length of said heel boom.
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) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |