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| Number | Title | Issue Date |
| 7654293 | Tree pruners A tree pruner includes a rod and a fixed part is fixed to the rod and an arm has a first end pivotably connected to the fixed part. A spring is connected between the fixed part and a second end of the arm. A movable part has an end fixed to the arm and a mediate por... | 02/02/2010 |
| 7322111 | Brush cutting device A lever actuated cutting tool that allows ground level cutting of shrubs and small trees from a standing position. The design of the cutting tool takes advantage of the principles of leverage and resistive force, and also incorporates a pendulum swing, to provide a ... | 01/29/2008 |
| 7322388 | Tree removal attachment and method A tree removal attachment is provided which can be easily affixed to construction equipment such as a small loader or skidster. The tree removal attachment has at least one moveable blade which is powered preferably by the hydraulic system of the loader for use in t... | 01/29/2008 |
| 7287563 | Vehicle-mounted cutting tool A vehicle-mounted cutting tool is disclosed. The tool broadly includes a supporting member mounted to a vehicle, a pivotable member pivotally coupled with the supporting member, and a slidable member slidably coupled with the supporting member. Contact with an objec... | 10/30/2007 |
| 7243646 | Apparatus and method for shearing reinforced concrete piles and metal piles and crushing reinforced concrete piles An apparatus (10) for shearing off reinforced concrete piles and metal piles, casing and conductor pipes, and crushing reinforced concrete piles has a frame (11) with first and second ends and a cutter blade (41) movably mounted on the frame dri... | 07/17/2007 |
| 7243691 | Tree shear A tree shear for use with a prime mover such as a skid-steer loader wherein the tree shear includes a pair of tree shear blades, having forward and rearward ends, which are secured to the forward end of a tree shear frame in a non-movable and fixed manner. The blade... | 07/17/2007 |
| 7240702 | ATV mounted tree shear The present invention is a vegetation cutting apparatus for connection to an all terrain vehicle. A frame attaches to the front grill of the all terrain vehicle. Specifically, a first frame member attaches to the front grill while a second frame member, which extend... | 07/10/2007 |
| 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 |
| 7152640 | Tree cutting attachment for a skid steerloader A tree cutting attachment for a skid steer loader. The attachment comprises a universal mounting plate by which the attachment quickly and simply is removably attachable to the loader. A circular saw blade is supported at the end of a non jointed arm that extends fo... | 12/26/2006 |
| 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 |
| 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 |
| 6779570 | Wood gathering and compaction vehicle The wood gathering and compaction vehicle comprises a vehicle frame movable over ground, a storage bin removably installed on the vehicle frame, with the storage bin having an inlet opening and an outlet opening. The vehicle further comprises a releasable bin attach... | 08/24/2004 |
| 6662836 | Tree shear A tree shear attachment is, in one preferred embodiment, designed to replace the shovel at the outermost end of the boom assembly of a backhoe to provide remarkable maneuverability and an extensive range of motion for the shear. One of the severing jaws i... | 12/16/2003 |
| 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 |
| 6343633 | Tree harvester A tree harvester, arranged on the movable arm of a forestry vehicle includes a cutting tool having pivotable claws with releaseable locking elements for relative, mechanical locking of the claws in an inwardly pivoted position, and a longitudinally adjust... | 02/05/2002 |
| 6024145 | Articulated boom and head for manipulating objects under water The articulated boom and utility head for manipulating objects underwater of the present invention includes an articulated arm mounted at a first end thereof to a free floating platform, and a remotely operable utility head mountable at a second end of th... | 02/15/2000 |
| 5868516 | Mounting assembly for mounting a saw head to a tractor A bolt-on mounting assembly for mounting a saw head having a base member and a generally vertical member extending from the base member to a tractor having first and second lift arms comprising a mounting lug, structure for securing the mounting lug to th... | 02/09/1999 |
| 5860214 | Shearing machine with sickle-shaped blade A shearing machine includes a sickle shaped upper jaw interacting scissors fashion with a generally linear lower jaw. The distal ends of the sickle shape begin shearing from opposite ends of a plate-type object at about the same time, with shearing progre... | 01/19/1999 |
| 5826339 | Forestry cutting, mulching and clearing tool A forestry cutting, mulching and clearing attachment for a hydraulic excavator that is used for clearing sloped grounds, ditches, and culverts. The device includes two mating jaws which are substantially rectangular in shape and include a plurality of mat... | 10/27/1998 |
| 5697412 | High capacity feller heads The felling and bunching head for severing and grouping trees has a shear or saw or the like for severing trees, and an accumulation area for accumulating severed trees, extending rearwardly from the shear or saw, substantially outwardly and away from a c... | 12/16/1997 |
| 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 |
| 5471747 | Steel material shearing machine Shearing blades are attached to a lower jaw and an upper jaw which are arranged to be opened and closed in a crossing manner. The lower leading blade 24 and the lower trailing blade 25, both attached to the lower jaw 4, are arranged to form a substantiall... | 12/05/1995 |
| 5465770 | Tree harvesting apparatus with impact hammer An apparatus for severing a standing tree at a trunk portion thereof includes a housing constructed and arranged to be movable to a tree harvesting location. Holding structure is constructed and arranged with respect to the housing to hold a portion of th... | 11/14/1995 |
| 5465771 | Wood processing apparatus with impact hammer An apparatus is provided for delimbing tree limbs of a felled tree including housing structure constructed and arranged to be movable to a tree processing location. Support and feeding structure is constructed and arranged with respect to the housing stru... | 11/14/1995 |
| 5355920 | Felling and delimbing apparatus allowing to delimb trees in length and its method of use The invention relates to an improvement in a felling and delimbing apparatus having a head for felling and delimbing trees; a frame, at least two grasping jaws and, delimbing knives mounted on said frame and/or on said grasping jaws, and first/and second ... | 10/18/1994 |
| 5179985 | Lifting and crushing apparatus for tree stumps A stump lifting and crushing device for mounting to an end of a bucket arm of a digging machine includes stump lifting hooks and a bit pivotally closable with a counter bit for crushing stumps therebetween. The bit has an elongate narrow cutting surface w... | 01/19/1993 |
| 5161588 | Tree felling head with combination tree accumulator and tree abutment A felling head having a combination tree accumulator and abutment apparatus which eliminates the need for additional grapple arms to secure accumulated trees thus simplifying and lightening the felling head.... | 11/10/1992 |
| 5142779 | Mobile wood and tire shear A heavy duty mobile wood and tire shear having a lower stationary jaw rigidly attachable to the dipper stick of a hydraulic excavator. The lower jaw has a forwardly extending face plate for receiving and supporting the workpiece with two forwardly extendi... | 09/01/1992 |
| 5109900 | Tree-felling head A felling head for successively grabbing a number of upstanding trees, sequentially sectioning same, and capturing a number of sectioned tree sections one at a time to constitute a pack of sectioned tree sections held by the head, before it is required to... | 05/05/1992 |
| 5101873 | Tree cutting apparatus A tree cutting apparatus includes a frame having forward and rearward ends, with a pair of generally planar blades rotatably mounted on the forward end of the frame. The blades are mounted spaced apart within the same plane, each blade having a cutting ed... | 04/07/1992 |
| 5080151 | Lifting and crushing apparatus for tree stumps A stump lifting and crushing device for mounting to an end of a bucket arm of a digging machine includes stump lifting hooks and a bit pivotally closable with a counter bit for crushing stumps therebetween. The bit has an elongated narrow cutting surface ... | 01/14/1992 |
| 5065514 | Attachment for metal demolition shears An attachment means for a heavy duty shear is disclosed. The attachment means permits the shear to be attached to a front end loader, which previously was not possible. Prior to the attachment means of the present invention, such shear could only be attac... | 11/19/1991 |
| 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 |
| 4913203 | Tree harvester A tree shear is disclosed which has a frame on which is mounted a pair of blades for pivotal movement relative to one another in scissors fashion; the blades being pivoted by hydraulic jacks. Each blade pivots on a rotary shaft having an eccentric center ... | 04/03/1990 |
| 4911215 | Tree feller-chipper A method and apparatus are provided for felling and chipping trees, all on a single vehicle, including mounting a grapple and a shear on a connector, mounting the connector to a boom, engaging a tree with the grapple and shear, shearing the tree, moving t... | 03/27/1990 |
| 4908946 | Wood cutting shear The present invention relates to heavy duty wood cutting shear attachments of a large scale for connection to a boom structure of a hydraulic excavator for cutting tree stumps and the like. The wood cutting shear includes a swingable jaw and a stationary ... | 03/20/1990 |
| 4802517 | Tree cutting apparatus A cable-supported tree cutting device for use with drag lines and the like provides a tool body having a pair of opposed jaws positioned at one end of the tool body and movable with respect to one another so that the jaws can open and close. An open-ended... | 02/07/1989 |
| 4763742 | Tree feller-buncher A four track vehicle especially adapted for logging on steep slopes includes a running unit and an upper unit. The upper unit is articulated relative to the lower unit to maintain a center of gravity within the four tracked pods upon which the running uni... | 08/16/1988 |
| 4686767 | Metal cutting shear for a backhoe A material handling and metal shear attachment for a backhoe is mounted on the boom or dipstick of a backhoe for actuation by the hydraulic system of the backhoe. A fixed blade is pivotally secured to the boom or dipstick and a movable cutting blade is pi... | 08/18/1987 |
