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| Number | Title | Issue Date |
| 8066043 | Combination forest biomass and tree harvester, harvesting head assembly, and methods for harvesting The disclosure relates to a combination forest biomass and tree harvester, a harvesting head assembly, and methods for harvesting trees and forest biomass. In some embodiments, the combination forest biomass and tree harvester includes a self-propelled vehicle base,... | 11/29/2011 |
| 7992603 | Saw speed readiness system for forestry machine A saw speed readiness system for use with a forestry machine comprises a controller configured to receive a threshold selection signal, and change a speed readiness threshold from a first saw speed to a second saw speed in response to the threshold selection signal,... | 08/09/2011 |
| 7891390 | Tree pusher A tree pusher for safely felling a tree. The tree pusher includes (a) a base; (b) a frame mounted on the base; (c) a mechanism for pushing the frame against the tree to fell the tree; and (d) a mechanism for connecting the base of the tree pusher to the tree, so tha... | 02/22/2011 |
| 7832437 | Tree felling head A tree felling head including a gathering arm and a bunching finger. In various embodiments the bunching finger may include inner and outer arms pivotally coupled together with the inner arm also pivotally coupled to a frame portion of the felling head. A biasing me... | 11/16/2010 |
| 7363754 | Mowing machine A control system for a trimmer head assembly includes a first arm including a first mowing device, a first cylinder connected to the first arm, a source of fluid in selective communication with the first cylinder via a fluid line, and an accumulator in selective com... | 04/29/2008 |
| 7334611 | Arrangement in connection with crosscutting saw of harvester An arrangement in connection with a crosscutting saw of a harvester. Herein, a lattice-like structure composed of strips is provided in a saw casing of the crosscutting saw, the structure being substantially on the same section plane as the rotational movement of a ... | 02/26/2008 |
| 7314110 | Hydraulic drive vehicle A hydraulic driving vehicle comprises front and rear transaxles incorporating respective hydraulic motors, and a pump unit separated from the front and rear transaxles. The pump unit incorporates a hydraulic pump having a pump shaft. A hydraulic circuit is formed by... | 01/01/2008 |
| 7306018 | Tree harvesting apparatus A tree harvesting apparatus is provided. The harvesting apparatus comprises a frame member, a cutting device mounted to the frame member, and at least one cutting member attached to the cutting device. A tree accumulation member is also provided and overlays at leas... | 12/11/2007 |
| 7174932 | Felling head accumulator arm An accumulator arm for a felling head has inner and outer arms which are hydraulically driven open and closed. The inner and outer sides of the outer arm are curved away from an accumulation pocket and toward a harvesting arm, wherein the accumulator arm can be pull... | 02/13/2007 |
| 7121310 | Underwater pile cutting apparatus and method of use An apparatus for cutting wooden piles underwater and a method of use are disclosed. The apparatus has a frame and brace configured for engaging a pile. A pressure medium activated cutting device is connected to the frame and oriented at an angle such that a pile can... | 10/17/2006 |
| 7086433 | Tree felling assembly An assembly for felling a segment of a tree trunk in a safe and controlled manner and method of using the same. The assembly comprises a vertical support structure having an elongated base portion, an elongated mast portion connected to the base portion or integrall... | 08/08/2006 |
| 7066449 | Process and apparatus for uprooting trees The subject of the invention is the excavation of trees by disrooting then by a hydraulic equipment, when the power machine (1) is connected in a rotatable manner to the timber holding frame (9), the supporting frame (3) and the elevating workin... | 06/27/2006 |
| 7017631 | Feller buncher A feller buncher includes an elongate support having an axis, a first side, a second side, a first end and a second end. A first tree receiving cavity is positioned along the first side of the support. A second tree receiving cavity is positioned along the second si... | 03/28/2006 |
| 7007730 | Apparatus and method for severing a tree and reducing the tree stump An apparatus and method for harvesting trees and reducing their stumps is disclosed. The apparatus includes a rotating member including an upper disc saw blade and a lower stump grinding drum blade. The disc saw blade severs the tree from its stump, and thereafter t... | 03/07/2006 |
| 6986371 | Auxiliary powered forest clearing implement An implement for clearing brush and trees which includes a self-propelled vehicle and at least one boom mounted upon the vehicle. The boom is constructed for articulated motion of a distal end thereof. A cutting disk is operatively mounted for rotation to the distal... | 01/17/2006 |
| 6932163 | Roofing saw with locking mechanism and removable bearing support A saw (10) facilitates cutting of roofing and includes a frame (12) that is mobile on a work surface. A locking mechanism (40) locks the frame (12) into a transport position. Actuating a release lever (60) allows the frame (12 | 08/23/2005 |
| 6901978 | Apparatus and method for cutting trees A tree cutter in combination with a self-propelled vehicle is disclosed for cutting underbrush and small free standing trees, such as, Cedar. The tree cutter is pivotally mounted at the front of the self-propelled vehicle, such as, a Four Wheeler in order to pivot u... | 06/07/2005 |
| 6789587 | Method and apparatus for underwater tree cutting and retrieval The invention relates to an apparatus and method for cutting submerged trees at an underwater logging site and for retrieving the cut trees. Once cut, each tree is retrieved to the water surface by an inflatable bag deployed from and inflated by the apparatus. The a... | 09/14/2004 |
| 6763863 | Hydraulic circuits for tree-harvesting knuckle booms A hydraulic valve is used to judiciously shunt oil from lowering ends of the hoist and stick cylinders that have been plumbed to achieve near horizontal movement. This allows the use of cylinders that have unequal rod/bore ratios or to compensate for certain transie... | 07/20/2004 |
| 6698478 | Mobile silvicultural apparatus and method for operating the same A mobile silvicultural apparatus for use in a land of trees comprising mature trees and immature trees. The apparatus includes a steerable wheeled support frame, an articulated boom, a motor system, and a control system. The steerable wheeled support fram... | 03/02/2004 |
| 6691752 | High rotation felling head mechanism A tree felling saw head has two pairs of links and two hydraulic actuators to provide high rotation of the head relative to a mounting adapter in a lateral plane which is perpendicular to a cutting plane.... | 02/17/2004 |
| 6681818 | Hydraulic circuits for tree-harvesting knuckle booms The two boom members and hydraulic cylinders of a knuckle boom tree harvesting machine are so arranged and proportioned that with a single control movement during reaching and retracting actions the working tool head is made to travel in an approximately ... | 01/27/2004 |
| 6675848 | Method of harvesting timber trees in a jungle and a machine for performing said method A method of harvesting standing trees in a jungle comprising bringing a crawler crane, preferably a hydraulic crawler crane, with a boom (14) to a block of jungle, securing the tree to be harvested to a sling in the boom, cutting the base of the tree, rem... | 01/13/2004 |
| 6640850 | Tree harvesting apparatus A tree harvesting apparatus is provided. The harvesting apparatus comprises a frame member, a cutting device mounted to the frame member, and at least one cutting member attached to the cutting device. A base member partially overlays the cutting device. ... | 11/04/2003 |
| 6637482 | Wood harvesting method and a harvester head needed for its implementation The innovation concerns a wood harvesting method and a harvester head. The method is used to harvest all sizes of trees without to take the harvester to the site more than once. The method consists of placing the harvester head against the first tree, clo... | 10/28/2003 |
| 6578610 | Automatic feller/buncher clamp control A clamp control system for a feller/buncher has three buttons for automating the operation of the harvesting and accumulating clamps. A CLOSE button, when momentarily actuated for the first tree of a bundle, closes the harvesting clamp and the accumulatin... | 06/17/2003 |
| 6550505 | Land clearing tractor for selectively clearing a land of brush and trees and process therefor A land clearing tractor and process are provided for selectively clearing a land of brush and trees. The tractor has a traction unit for moving the tractor along a direction of travel. A supporting frame is connected to the traction unit. The frame has fi... | 04/22/2003 |
| 6516841 | Tree felling and shaping apparatus A tree felling and shaping apparatus is provided with a fully powered and controllable link system which links a tree processor head to a boom that is in turn mounted to a vehicle. The link system includes two powered pivoting joints and a rotary coupling... | 02/11/2003 |
| 6453957 | Cutting attachment A cutting attachment is adapted to be mounted onto a vehicle, such as a skid steer loader, and includes a frame that is generally "V" shaped with diverging walls and open in direction of travel. The diverging walls of the frame support upright shafts. Eac... | 09/24/2002 |
| 6443196 | Hydraulic circuits for tree-harvesting knuckle booms The two boom members and hydraulic cylinders of a knuckle boom tree harvesting machine are so arranged and proportioned that with a single control movement during reaching and retracting actions the working tool head is made to travel in an approximately ... | 09/03/2002 |
| 6443197 | Chain in a sawing device, and a motor-driven sawing device A sawing device and a chain for it, comprising at least two adjacent sequences of connecting links, of which at least some are cutting teeth; and a sequence of drive links fitted between two adjacent connecting link sequences, wherein an opening at the re... | 09/03/2002 |
| 6439279 | Tree saw attachment with tweezer arm A tree saw attachment (10) for use with a loader vehicle includes a base frame (11), a generally V-shaped blade assembly (12), a brush guard (13), and a tweezer arm assembly (14). A swingable tweezer arm (29) of the tweezer arm assembly is movable using a... | 08/27/2002 |
| 6435235 | Mounting for tree harvester head A tree harvester head structure is connected to a mounting structure on a mobile tree harvester by a compact coupling which provides lateral pivotal movement of the harvester head structure. An antifriction bearing and a fluid powered rotary actuator have... | 08/20/2002 |
| 6418989 | Standing-stem timber harvesting system A method of standing-stem log harvesting including the steps of preparing a tree for harvesting and then harvesting the same directly from the stump. A tree is prepared for harvesting by topping the tree, cutting the tree part way through the trunk near g... | 07/16/2002 |
| 6408906 | Gripping and cutting apparatus Apparatus (10) having special application for gripping and cutting tree limbs around utility lines includes a tubular insert (18) slideably received in the free end of a tubular boom (12). A plate (28) is pivoted about a first pivot axis relative to the i... | 06/25/2002 |
| 6382274 | Dual post harvesting head A tree harvesting head is disclosed. An embodiment includes an elongate frame, a first support device, a second grapple arm, a second support device, and a base portion. The first support device includes a first grapple arm. The second support device incl... | 05/07/2002 |
| 6374877 | Bar saw feller buncher and method of felling trees A bar saw felling head clamps a tree between harvesting and reaction arms during cutting and after the cut sweeps the tree rearwardly with the harvesting arm into an accumulation pocket where an accumulating arm holds it and any already cut trees. The bar... | 04/23/2002 |
| 6341632 | Method for timber harvesting and system for forestry A method and a system for forestry, in particular harvesting by means of a harvesting machine comprising a vehicle and a harvesting arrangement mounted thereon, is based on the fact that at least one position determining device (5), capable of determining... | 01/29/2002 |
| 6267163 | Method and apparatus for operating a hydraulic drive system of a feller-buncher A feller-buncher includes a first axle having a number of first wheels attached thereto and a second axle having a number of second wheels attached thereto. The feller-buncher also includes a first hydraulic motor operable to rotate the first axle and a s... | 07/31/2001 |
| 6186198 | Method and apparatus for distributing hydraulic power in a feller-buncher A feller-buncher includes a work tool having a hydraulically powered blade. The feller-buncher also includes a first axle having a number of first wheels attached thereto and a first hydraulic motor operable to rotate the first axle. The feller-buncher al... | 02/13/2001 |
