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| Number | Title | Issue Date |
| 7367368 | Tree trimmer An apparatus for removing obstructions caused by both high and low lying vegetation, the apparatus including a conventional industrial type vehicle, such as a tractor or backhoe loader, a swing frame swingably connected about a substantially vertical axis on the veh... | 05/06/2008 |
| 6901665 | Pneumatic pruning hook with a telescopic shank A pneumatic pruning hook with a telescopic shank includes a handle having a chamber defined therein and connected to a compressed air source, a valve mounted in the chamber for selectively allowing the compressed flowing into the chamber. The telescopic shank includ... | 06/07/2005 |
| 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 |
| 6176280 | Disc saw felling head chip path management construction A disc saw felling head has the cutting pocket positioned relative to the tooth entry opening into the housing such that chips being thrown out of the kerf by the teeth are thrown radially outwardly of the entry opening. The chips are thrown against a def... | 01/23/2001 |
| 6068035 | Disc saw felling head chip path management construction A disc saw felling head has the cutting pocket positioned relative to the tooth entry opening into the housing such that chips being thrown out of the kerf by the teeth are thrown radially outwardly of the entry opening. The chips are thrown against a def... | 05/30/2000 |
| 5979518 | Tree harvesting apparatus with transversely acutated saw chain There is disclosed a tree harvesting head assembly which provides an improved cutting means for permitting movement of a saw chain linearly outwardly from a first position behind a tree to be cut to a second position transversely forwardly of a tree to be... | 11/09/1999 |
| 5816299 | Disc saw felling head chip discharge A disc saw felling head has a window in a sidewall of the head through which chips are discharged in a tangent plane and a discharge chute over the window. The chute has a top wall and inner and outer sidewalls shaped so that chips exiting the head throug... | 10/06/1998 |
| 5802946 | Drive device for chain saw A drive mechanism for a chain saw has a minimal vertical height. The drive mechanism is particularly useful for timber harvesting vehicles, and includes a drive motor, a holder with a clamping mechanism for clamping a chain saw guide bar, a bearing assemb... | 09/08/1998 |
| 5797187 | Chain saw guide bar having dye-emitting nozzles A chain saw guide bar is formed of a middle plate and a pair of side plates affixed on opposite sides of the middle plate. One (or both) of the side plates carries nozzles for emitting liquid dyes of different respective colors. Channels for conducting li... | 08/25/1998 |
| 5735323 | Tree cutter device The tree cutter device has a quick release mechanism for the gripping of the tree to be cut and for the quick release after cutting. The gripping mechanism is actuated upon contact of the tree cutter device with a tree with the gripping force with a tree ... | 04/07/1998 |
| 5676125 | Excavator mounted concrete saw Rotary disk saw is adapted to be mounted on an earth excavator or the like, having an articulating and rotatable member for a boom. To this excavating boom, which normally carries a shovel, the saw carrying unit is attached and includes a compound pivot m... | 10/14/1997 |
| 5542326 | Bale cutting device An apparatus for cutting baled crop materials particularly of the cylindrical bale type comprises an apparatus in the form of a conventional chain saw in which the chain is modified so that either the slide links or the guide links include an outwardly pr... | 08/06/1996 |
| 5509453 | Apparatus for removing trees Apparatus for severing trees, brush, and other forestry at or below ground level in one passage of the apparatus through the forestry includes a plurality of rotatable shafts; a shaft housing for rotatably supporting the shafts with the rotational axes of... | 04/23/1996 |
| 5503201 | Tree shear A pair of pincer-type cutting blades are pivotally supported from a frame to be mounted from a front loader and fluid cylinders having base ends pivotally supported from the frame outwardly of the remote sides of the cutting blades include outer ends univ... | 04/02/1996 |
| 5501257 | Tree trimming apparatus A tree trimming apparatus connectable to an operating arm generally including a first housing connectable to the operating arm, a first shaft journaled in the first housing and rotatable about a first axis, means mounted on the first housing and operative... | 03/26/1996 |
| 5479971 | Dual action tree cutting apparatus A dual action tree cutting apparatus includes a single generally planar blade mounted on a shaft at the forward end of a support frame, with the blade projecting forwardly therefrom. The blade has a cutting edge extending around the entire perimeter, and ... | 01/02/1996 |
| 5445197 | Arrangement in tree-processing assembly The present invention relates to an arrangement in a tree-processing assembly of the type comprising a frame base (2) which is connectible to the tip of a crane via a rotator (3) and with which a pivotable carrier (5) is hingedly connected, said carrier c... | 08/29/1995 |
| 5441090 | Tree cutting and wood manipulating grapple A gripping apparatus is provided that may be rotatably mounted on a vehicle, comprising an articulated boom with a gripping head rotatably and pivotally mounted thereto. The head is provided with opposable jaws comprising jaw members that apply an even pr... | 08/15/1995 |
| 5318081 | Hydraulic tree trimmer A high reach self centering hydraulic tree trimmer which consists of first a carriage assembly. The carriage assembly consisting of a top plate and a bottom plate. The plates are separated by spacers and secured together with a plurality of fasteners. A p... | 06/07/1994 |
| 5230270 | Machine for cutting concrete barriers A machine for cutting concrete blocks especially continuously molded, highway dividing barriers of the New Jersey type, in a very fast and easy manner. The machine is mounted on a support base forming part of a powered truck-like vehicle and includes a pr... | 07/27/1993 |
| 5211212 | Cutting tooth A cutting tooth for a tree felling saw having a concave front surface and a convex rear surface can be removably fixed to a saw by a fastening device The front surface and the rear surface are uniformly spaced and have a plurality of side surfaces extendi... | 05/18/1993 |
| 5201350 | Work head with rotatably mounted chain saw A circular cutter wheel (34) is mounted on a work head housing (24) to rotate about a vertical axis (Y). A chain saw (76) is mounted on the housing (24) above the wheel (34). The saw (76) is mounted by a swivel device (42) which continuously rotates the s... | 04/13/1993 |
| 5174098 | Apparatus for cutting vegetation An apparatus for cutting vegetation such as tree branches is disclosed, which includes a vehicle, a first boom attached to the vehicle, a second boom attached to the first boom, and a cutter attached to the second boom. A first piston and cylinder is atta... | 12/29/1992 |
| 5170825 | Boom support for a disc saw felling head An articulated two-boom support for a disc saw felling head. A first of the booms is pivotally connected to a base of a logging vehicle. The second boom is pivotally connected to the first boom at a pivotal joint and the booms are further joined to each o... | 12/15/1992 |
| 5161448 | Bale saw A bale saw for cutting up large, cylindrical hay bales including a frame for quick mounting on a tractor load bucket. The frame includes a cross member and rearwardly projecting upper and lower structures which slidably mount over the bottom of the load b... | 11/10/1992 |
| 5123462 | Vehicle-mounted brush cutter An articulated brush cutting vehicle is provided having a rear powered unit and a front steering unit. A circular blade brush cutter is mounted on the forward end of a truss boom, the truss boom being pivotally mounted to the steering unit for side-to-sid... | 06/23/1992 |
| 5107592 | Tool-supporting attachment for a vehicle A tool-supporting attachment to be mounted on a vehicle for use in suspending motorized tools which must be carried on long distances is disclosed. This attachment comprises levelling means to permit to its upper frame portion to always be in a substantia... | 04/28/1992 |
| 5044409 | Force matching tree shear A tree shear where the shear blade is moved by a power mechanism that includes a link and lever so arranged that the force available matches approximately, at all times, the force required to pass the shear blade through the tree to sever the same.... | 09/03/1991 |
| 4998573 | Tree cutting apparatus A tractor supported and driven tree cutting apparatus which causes linear movement of a rotary cutter for cutting a tree trunk from the side portions thereof. The apparatus incorporates a frame structure having a hydraulically driven slide support guided ... | 03/12/1991 |
| 4987935 | BI-directional tree saw A tree saw includes a frame adapted to be attached to the boom of a prime mover, a tree clamping mechanism on the frame, and a carriage assembly on the frame below the clamping mechanism. The carriage assembly includes a generally plate-like chassis, a ge... | 01/29/1991 |
| 4977674 | Vehicle with telescopic boom for power driven plant trimming tools A device for supplying power to a plurality of power driven plant trimming tools is formed by a wheeled vehicle having a pair of driving wheels mounted on a vehicle frame. At least one steered wheel is rotatably mounted on the vehicle frame and is pivotal... | 12/18/1990 |
| 4960157 | Bush and tree cutter A method and apparatus for cutting trees and bushes including a circular disk having cutting teeth connected thereto, a motor for rotating the disk and an arm connected to the motor for moving the disk into contact with trees and bushes.... | 10/02/1990 |
| 4958670 | Tree felling apparatus A tree felling apparatus having a U-shaped base with a pair of laterally spaced arms defining a cutting area for receiving therein a tree to be cut and having a chain saw mechanism movable through the cutting area for cutting a tree includes saw tracking ... | 09/25/1990 |
| 4909291 | Cutting head for a tree-felling vehicle The present invention relates to a cutting head for use on a tree-felling vehicle. The cutting head comprises a tree-carrying frame with a cutting tool in the form of a rotor with helically extending cutting teeth. An arm for placement against a standing ... | 03/20/1990 |
| 4860454 | Self-propelled, self-steered vehicle for power driven plant trimming tools A self-propelled, self-steered vehicle for carrying a source of pressurized fluid to power and operate a plurality of manually controlled trimming tools for trimming plants in a cultivated field. The vehicle may have one of two steering devices. One steer... | 08/29/1989 |
| 4850409 | Felling saw and method of operating An improved tree-felling apparatus which can be mounted to a motive power device such as a tractor, includes a cradle having upper and lower saddle members for receiving a tree, a plurality of grab arm members for pulling the tree in toward the saddle mem... | 07/25/1989 |
| 4838328 | Method for mechanized thinning of a forest, and a harvester and forwarder for carrying out the method The invention relates to a method for thinning a forest by means of a wheeled harvester and a wheeled forwarder comprising a driver's cab and a load carrier located behind the cab. The harvester (3) is caused to advance in existing forest stands (1) in ro... | 06/13/1989 |
| 4813142 | Saw attachment for backhoe Disclosed herein is a timber cutting attachment for a backhoe machine. The attachment includes a frame adapted to being connected to the arm extending from the backhoe. Attached to the frame is a blade guard and a circular blade. Within the frame of the a... | 03/21/1989 |
| 4771670 | Bale lifter-carrier and slicer A method and apparatus for slicing, lifting and carrying round bales or the like. The method for slicing the bale consists of making a radial cut through the length of the bale. The radial cut causes the circumferentially wrapped bale fibers to be cut whi... | 09/20/1988 |
| 4694577 | Self-propelled, self-steered vehicle for power driven plant trimming tools A self-propelled, self-steered vehicle for carrying a source of pressurized fluid to power and operate a plurality of manually controlled trimming tools for trimming plants in a cultivated field. The vehicle has a steering device that includes a pilot whe... | 09/22/1987 |
