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| Number | Title | Issue Date |
| 7225842 | Feed rollers for tree handling A feed roll for tree handling has a number of strips which substantially cover its outer face. The strips have leading and trailing edges shaped to interdigitate with one another. A layer of resilient or slippery material is located between the strips and a drum. Th... | 06/05/2007 |
| 6684923 | Feed rolls for tree handling equipment A feed roll for tree handling has a number of resiliently mounted strips which substantially cover its outer face. The strips have leading and trailing edges shaped to interdigitate with one another. A layer of resilient material is located between the st... | 02/03/2004 |
| 6481471 | Spike roller for axial feeding or rotation of a log A roller for grasping a log for axial movement or rotation of a log, the roller including spike bar retainers fastened on the cylindrical surface of the roller. The spike bar retainers accept and retain replaceable spike bars, thus facilitating replacemen... | 11/19/2002 |
| 6453959 | Spike roller for axial feeding or rotation of a log A roller for grasping a log for axial movement or rotation of a log, the roller including spike bars fastened on the cylindrical surface of the roller. The spike bars are formed of alloy steel feature an improved type of spike having planar side surfaces ... | 09/24/2002 |
| 6253813 | Feed rolls with replaceable flute elements A fluted feed roll has inner replaceable flute inserts which abut and are bolted to anchor pieces welded in place on a cylindrical roll body. Part of the inner longitudinal edge of the flute inserts bears directly against the surface of the roll body. Tra... | 07/03/2001 |
| 6213177 | Feed wheel A feed wheel (24) for use in a wood working machine (10) in which the feed wheel is rotated while in driving engagement with a wood piece to drive the wood piece past a wood working element. The feed wheel is preferably driveable in one direction only and... | 04/10/2001 |
| 5996658 | Feed roller The present invention relates to a feed roller (1) by means of which a felled tree (2) trunk is fed into a timber harvester for delimbing. The apparatus comprises a drive wheel (4) and at least one transmission means (5) arranged at the outer circumferenc... | 12/07/1999 |
| 5957177 | Coupled workhead for use in timber processing There is disclosed a workhead for timber processing, the workhead having a main body and a jaw assembly for grappling timber. The jaw assembly includes first and second cooperating pairs of jaw arms that are pivotally mounted to the main body. The first o... | 09/28/1999 |
| 5954105 | Workhead for timber processing There is disclosed a workhead for timber processing, the workhead having a main body and a jaw assembly for grappling timber. The jaw assembly includes first and second cooperating pairs of jaw arms that are pivotally mounted to the main body. The first o... | 09/21/1999 |
| 5944078 | Feeding roller for a log feeding device of a debarking machine A feeding roller for a log feeding device of a debarking machine, said feeding roller (1) comprising a substantially drum-like body (3) and a rib formation (5) consisting of ribs (9) provided in separate rib elements (6) to be fastened to the circumferenc... | 08/31/1999 |
| 5570732 | Log feeding device The log feeding device includes a feeding wheel that has an upper side portion axially from a lower side portion and a rim extending therebetween. The side portions extend outwardly and laterally from the wheel. An elastic tire is mounted on the rim of th... | 11/05/1996 |
| 5560409 | Backsawn timber production from radially sawn wedges A method of resawing elongated radially sawn segments of timber so that bsawn boards are produced. Said wedges are sawn with the desired angle between the radial faces and are resawn so that the growth rings of the tree are basically parallel to the broa... | 10/01/1996 |
| 5458172 | Debarking and chipping apparatus A debarking and chipping apparatus mainly for coniferous trees, intended for the production and recovery of bark chips and chips for digestion from small trees (5) having a diameter of 4-20 cm. The apparatus is made up of a debarking unit (1), which debar... | 10/17/1995 |
| 5297601 | Triple head high speed log debarker A log debarker for debarking a lengthwise-moving log includes a pair of debarking subassemblies each including a pair of cylindrically concave, rotating cutter elements positioned angularly asymmetrically toward one side of the log and away from an opposi... | 03/29/1994 |
| 5247977 | High speed log debarker A log debarker for debarking a lengthwise-moving log includes a pair of debarking subassemblies each including a pair of cylindrically concave, rotating cutter elements juxtaposed on opposite sides of the log and formed to debark a quadrant of a log. Each... | 09/28/1993 |
| 5152328 | Feed roller A feed roller intended for a timber processing unit includes a roller body having disposed on its outer periphery elastically supported engagement devices for driving engagement with a tree trunk advanced by the roller. In accordance with the invention, i... | 10/06/1992 |
| 5111860 | Compression log debarking apparatus Apparatus for debarking a log using the compression debarking technique includes rollers which apply radial pressure to the log to separate the bark from the wood of the log. Three double-cone rollers, each having its double cones tapered to the middle of... | 05/12/1992 |
| 5058638 | Apparatus for cross-cutting treetrunks, comprising a device for measuring lengths An apparatus for cross-cutting a treetrunk comprises gripping members which embrace the treetrunk, a feeding mechanism for moving the treetrunk in its longitudinal direction, and a saw which moves transversely to the longitudinal direction and cuts the tr... | 10/22/1991 |
| 4976648 | Elk call The call includes an elongate tubular body having a rim structure defining an elliptical air inlet end. An elastic sheet constitutes a reed and overlies a portion of the inlet end of the body. A backing plate is also located at the inlet end with a plate ... | 12/11/1990 |
| 4972890 | Log feed roller mechanism A log feed roller mechanism has a pair of parallel drive rolls; a plurality of contour-edged bars flexibly mounted at spaced intervals around the outer surfaces of each of the rolls; and, a drive mechanism for drivingly counter-rotating the rolls about th... | 11/27/1990 |
| 4721139 | Feed roll for debarking/delimbing apparatus A feed roll for a log debarker or delimber wherein the roll is square-shaped in cross-section. Rows of gripping teeth are provided along each corner. The teeth are varied in height along the feed roll to form a sinusoidal or serpentine wave. Successive ro... | 01/26/1988 |
| 4621971 | Means for rotating tree trunks A means for rotating tree trunks or equivalent into correct position regarding their curvature, prior to their feeding into a machine processing round timber. The means is primarily intended to be used as an ancillary in a timber feeding means which feeds... | 11/11/1986 |
| 4554958 | Apparatus for rounding the circumference of a log An apparatus for rounding the circumference of a wood log which is supported by two sets of three drive rollers at spaced points between the ends of the log to establish a geometrical center. A knife is positioned extending the length of the log for cutti... | 11/26/1985 |
| 4431039 | Involuted disc slicer A comminuting apparatus for reducing trees or portions thereof to particles of engineered length especially suitable for ring flaking for subsequent use in flakeboard fabrication and for use by utilities and industries using wood for energy production. Th... | 02/14/1984 |
| 4385650 | Feed roll with spikes An improved feed roll for logs and the like has a plurality of radially extending trapezoidally shaped pyramids spaced circumferentially about the surface. In adjacent rows an offset may be provided and certain dimensional relationships are provided to yi... | 05/31/1983 |
| 4306596 | Device for processing round lumber sections Log processing apparatus having a cutting station with guide surface cutting means for cutting exterior guide surfaces on a log, stationary guide means forward of the guide surface cutting means and engageable with the cut guide surfaces of a log for guid... | 12/22/1981 |
| 4281695 | Method and system of aligning lumber, especially blocks from which the first pair of cants has been removed A method of aligning lumber from which a first pair of cants has been removed to provide blocks for feeding along a sawing line before they are fed in the sawing line. The block is charged in a longitudinal direction to pass by the control device. The con... | 08/04/1981 |
| 4081007 | Machine for cutting down and shaping trees The invention relates to a machine for cutting down and shaping trees, designed to cut down, strip and truncate trees, consisting of a support and cutting down-stripping-truncating equipment likely to be adapted to a self-propelling device, said equipment... | 03/28/1978 |
| 4058151 | Automatic lumber feeding device in combination with a wood working machine An automatic lumber feeding device to be used in combination with a wood working machine such as a hand feed planer or the like. The lumber feeding device comprises a fixed bracket, a free bracket mounted to the fixed bracket at a certain angle and a roll... | 11/15/1977 |
| 4057192 | Tree harvesting machine Machinery for reducing forest products to wood chips wherein a bed conveyor, a powered roll mounted for vertical movement above the bed conveyor, and powered, generally vertical side roll means downstream of the generally horizontal roll, feed a tree or l... | 11/08/1977 |
| 3994327 | Feeding device for advancing undelimbed tree trunks A feeding device for use with tree processing machines such as delimbing, barking and slashing machines wherein feed rolls are provided on each side of a feed path for the tree trunk. The feed rolls have a conical configuration and are mounted for rotatio... | 11/30/1976 |
| 3993342 | Convertible vehicle carrier A semi-trailer having an elongated frame constructed to support mobile machinery such as a bulldozer, a small crane, a backhoe and the like, and having a pair of ramps for supporting three automotive passenger vehicles such as pick-up trucks when not empl... | 11/23/1976 |
| 3987825 | Tree bark removing apparatus The present tree bark removing apparatus is suitable for mounting on a carriage for mobile use and also for stationary installation, for example, in a saw mill. A frame structure supports two rows of driven wheels which form a tree trunk passage. The whee... | 10/26/1976 |
| 3971423 | Log feeder for canting machine The canting machine comprises a pair of log slabbing rotary chipper heads arranged to slab off opposite sides of a log to make a cant which may be subsequently sawed into lumber. The infeed section comprises an endless chain having pairs of saddles spaced... | 07/27/1976 |
