Rotary Cutter Patents (Class 144/218)
  • Patent number: 10273652
    Abstract: A cutting tool (1) for producing a trench (2) in the ground (3) for laying cables (4), comprises a carrier device (5) which has a hub region (6) for connecting the cutting tool (1) to a rotary drive (7) and a peripheral region (8), wherein, arranged in the peripheral region (8) of the carrier device (5) are cutting segments (9) spaced from each other in an axial direction (10), wherein the carrier device (5) is in one piece and has a peripheral surface (11) at which are arranged raised portions (12, 13) which project from the peripheral surface (11) in a radial direction (14) and on which the cutting segments (9) are arranged.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: April 30, 2019
    Assignee: TYROLIT—SCHLEIFMITTELWERKE SWAROVSKI K.G.
    Inventors: Stefan Neubach, Karl Moller
  • Patent number: 10178821
    Abstract: Rotor shaft for use in an aerating device for a ground, wherein the rotor shaft comprises at least one connecting disc which extends transversely of the axis of the rotor shaft and on which at least two knives are arranged, wherein each knife is provided with two knife connecting holes and is connected between the connecting disc and a connecting ring, wherein the connecting disc and the connecting ring are provided with knife connecting holes which coincide with the knife connecting holes of the knives, wherein bolts are arranged through the coinciding knife connecting holes in order to connect the connecting disc, the knives and the connecting ring, wherein the connecting ring is constructed from at least two ring sectors which together form the connecting ring.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: January 15, 2019
    Assignee: Redexim Handel- en Expoitatie Mij. BV
    Inventor: Anton Cornelis Bos
  • Patent number: 9743594
    Abstract: A wheeled chassis to which a stump grinding unit is securely attached that includes a chip collector attached to either the stump grinder or the wheeled chassis and positioned adjacent the trailing edge of the stump grinding wheel. The wheeled chassis includes a duct in fluid communication with the chip collector, and a collection bin positioned adjacent the trailing end and in spaced relation below the duct. The wheeled chassis is adapted for hitched connection to a vehicle. A blower can be positioned within the duct to produce a rearwardly directed air flow to assist in the chip movement towards the collection bin. The collection bin can be positioned on the wheeled chassis or on a vehicle to which the wheeled chassis is attached.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: August 29, 2017
    Assignee: Leonardi Manufacturing Co.
    Inventors: Joseph A. Leonardi, Bruce C. Jordan
  • Patent number: 9687919
    Abstract: A method for introducing recesses in workpiece surfaces to be machined, with the aid of at least one tool. The invention is characterized in that two workpiece surfaces that face each other are simultaneously machined using the tool in order to introduce recesses into said workpiece surfaces.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: June 27, 2017
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Abdolreza Rasifard, Stefan Steinmetz, Patrick Knecht
  • Patent number: 9506490
    Abstract: A fastener includes a cylindrical shaft located between a head and a tapered point, threads integrally extending from the shaft and extending along a portion of a length thereof, and a burr cutoff area near the tapered point and including flank surfaces therein forming an angle greater than 90° therebetween. A flattened area can be located between the flank surfaces.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: November 29, 2016
    Assignee: SFS intec Holding AG
    Inventor: Daniel Scheerer
  • Patent number: 9289911
    Abstract: A stationary blade assembly for cutting labels from a label film in labelling machines, including: a support, a blade supported by said support; blade, a pair of first surfaces interposed between a second surface and a corresponding third surface transversal to the second surface. The stationary blade includes at least two cutting edges which are adapted to cut said labels.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: March 22, 2016
    Assignee: SIDEL S.p.A. con Socio Unico
    Inventors: Cristian Andreato, James Carmichael
  • Publication number: 20150083275
    Abstract: The invention relates to a stump grinder that rotates about a vertical axis and includes an improved cutting shaft. The improved cutting shaft includes a base portion attached to a drive source, and a grinding shaft attached to and extending downwardly from the base portion. The grinding shaft includes replaceable cutting teeth and a replaceable grinding tip.
    Type: Application
    Filed: September 25, 2014
    Publication date: March 26, 2015
    Inventors: James J. Paumier, Todd D. Mattison, David B. Mattison
  • Patent number: 8789566
    Abstract: The present invention is generally directed to a grinder tool preferably having one or more of the following aspects or features: (i) some, preferably most, of the footprint of its bit being shielded by the disc; (ii) the peripheral edge of the disc is at least partially covered by a rock stop hard surface layer; (iii) non-rigid mounting hardware structured to provide a non-rigid mechanical connection between the well and the bit sub-assembly (for example, the non-rigid mounting hardware may include: a rubber isolator; a mesh isolator; and/or a fluid filled isolator); (iv) a stump grinding tool rotating disc assembly having at least one first type bit sub-assembly (including a bit) and at least one second type bit sub-assembly (including a bit), where: (a) the first type bit sub-assembly has a first bit footprint geometry, (b) the first type bit sub-assembly has a first bit footprint geometry, and (c) the first bit footprint geometry is different than the second bit footprint geometry; (v) a rotating disc ass
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: July 29, 2014
    Assignee: Leonardi Manufacturing Co., Inc.
    Inventors: Joseph A. Leonardi, Bruce C. Jordan
  • Publication number: 20130056113
    Abstract: The present disclosure provides an apparatus comprising a frame supporting a motor and a gearbox, wherein the motor and the gearbox are connected to one another via coupling and further wherein the gearbox is oriented ninety (90) degrees from its normal operating orientation; and a bit assembly, the bit assembly comprising a shaft, having a first end and a second end, wherein the first end is attached to the gearbox via a gearbox output flange, a main bit assembly further comprising an upper cutting blade and a lower cutting blade attached to the shaft, wherein the lower cutting blade is located closer to the second end of the shaft than the upper cutting blade, an adjustable depth cutting guide attached to a bottom portion of the upper cutting blade, and a lateral cutting blade attached at the far end of the upper cutting blade; and a guide bit assembly wherein the apparatus is attachable to a self-propelled vehicle.
    Type: Application
    Filed: August 1, 2012
    Publication date: March 7, 2013
    Inventors: Richard T. Chapman, John B. Newton, Ronald D. Evers, JR.
  • Publication number: 20120285293
    Abstract: A composite sintered powder metal article including a first region including a cemented hard particle material such as, for example, cemented carbide. The article includes a second region including: a metallic material selected from a steel, nickel, a nickel alloy, titanium, a titanium alloy, molybdenum, a molybdenum alloy, cobalt, a cobalt alloy, tungsten, a tungsten alloy; and from 0 up to 30 percent by volume of hard particles. The first region is metallurgically bonded to the second region, and each of the first region and the second region has a thickness of greater than 100 microns. The second region comprises at least one mechanical attachment feature so that the composite sintered powder metal article can be attached to another article. The article comprises one of an earth boring article, a metalcutting tool, a metalforming tool, a woodworking tool, and a wear article.
    Type: Application
    Filed: July 26, 2012
    Publication date: November 15, 2012
    Applicant: TDY INDUSTRIES, LLC
    Inventors: Prakash K. Mirchandani, Morris E. Chandler
  • Patent number: 8281826
    Abstract: A sharp edged knife stop can secure the position of knife blades in a cutting or chipping system and prevent the separation of knife blades. The sharp edged knife stops can also assist in the cutting or chipping and lower the amount of debris build up that would occur with the use of traditional knife stops. The sharp edged knife stop has the same inclination angle as the knife blades and the same difference in knife edge height as the knife blades above that of a retaining ring height.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: October 9, 2012
    Assignee: Iggesund Tools AB
    Inventors: Robert L. Uelmen, Aaron J. Adent
  • Patent number: 8251112
    Abstract: A cutterhead for a peripheral milling machine including a cutterhead body including a generally cylindrical portion and a plurality of circumferential, spaced and offset blade unit mounting cavities extending into the cutterhead body from the periphery of the cylindrical portion for receiving a blade unit. The cutterhead further includes a plurality of blade units each having at least one cutting edge and means for removably securing each of the removable blade units in the corresponding blade unit mounting cavity. The cutting edge of each of the blade units is disposed to align with the cutting edge of each of the other blade units in adjacent mounting cavities to form a substantially helical, stepped blade row when the blade units are secured to the cutterhead body.
    Type: Grant
    Filed: May 4, 2010
    Date of Patent: August 28, 2012
    Inventor: John S. Stewart
  • Patent number: 8201598
    Abstract: A cutting tool for use with a stump cutting apparatus of the type utilizing a cutting wheel or drum rotating about a rotational axis wherein the cutting tool is removably attached to the cutting wheel or drum. The cutting tool includes a tool holder removably secured to the cutting wheel typically through a plurality of fasteners extending through a plurality of apertures located in the base portion of the tool holder. The tool holder includes a tool portion having a boss and a neck extending from the base portion of the tool holder to the boss. The boss being a generally annular member having an aperture extending between first and second ends wherein a cutting tool is secured within the aperture. The cutting tool generally includes a head portion, a shank and a cutting tip.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: June 19, 2012
    Inventor: Kevin J. Green
  • Patent number: 8176955
    Abstract: A knife assembly includes a knife blade and a mounting assembly having a knife blade support portion extending along a longitudinal axis of the mounting assembly. The knife blade support portion is constructed and arranged to position a cutting edge of the knife blade distal to a leading edge of the mounting assembly. The mounting assembly also has a counter knife portion disposed at the leading edge of the mounting assembly that defines a set back distance with the knife blade. The set back distance is constructed and arranged to provide a travel path for a wafer.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: May 15, 2012
    Assignee: Simonds International Corporation
    Inventors: Anthony Maietta, Timothy House
  • Patent number: 8167013
    Abstract: A locking component for locking a clamping component to a movable base on a wood working machine is disclosed which includes a locking component body having an externally threaded portion to engage the clamping component, a head having a shoulder to engage the machine, a through bore for receiving a threaded fastener and driving features for driving the locking component into and out of threaded engagement with the clamping component.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: May 1, 2012
    Assignee: Iggesund Tools AB
    Inventors: Salvatore D'Ignazio, Christian Plouffe
  • Patent number: 8151839
    Abstract: A device of double saw blades includes a first saw blade, a second saw blade, a driving device and security system. The first saw blade and the second saw blade rotate around a rotation axis oppositely, and respectively include a blade body and a cutting element mounting on a periphery of the blade body. The driving device connects with the first saw blade and the second saw blade, and has a driving diameter. The security system has a security distance provided between the blade bodies. The security system includes two rigidity enhancers. The rigidity enhancers respectively include a saw blade adapter mounting on an outer side of the blade bodies. The saw blade adapters respectively have a predetermined diameter to enhance a rigidity of the blade bodies, so as to reduce deformation thereof when working. The diameters are no more than the driving diameter.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: April 10, 2012
    Assignee: Hammer Electric Power Tools Co., Ltd.
    Inventor: Liang Huang
  • Patent number: 8061396
    Abstract: A tooth for a circular saw or a mower drum that can be used to cut standing trees or brush and undergrowth. The tooth has four cutting edges arranged in a first pair of opposed cutting edges that are generally straight and a second pair of opposed cutting edges that are generally concave. The tooth is mounted in a holder in a first or second cutting position that orients a cutting edge of the first or second pair to physically contact and effect a cutting method to a cuttable material. In a first cutting method, a generally straight cutting edge contacts the material, resulting in a slicing action. In a second cutting method, a generally concave cutting edge contacts the material, resulting in a gouging action. Teeth in the circular saw or brush mower alternate between first and second cutting positions, allowing both cutting methods to be applied to cuttable material.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: November 22, 2011
    Inventors: Charles MacLennan, Denis Rioux
  • Publication number: 20110277885
    Abstract: The brush cutting head for a brush cutter can have internally housed drive and bearing assemblies. The brush cutting head can includes a hollow support body having a first end, an opposed second end, an outer surface and an inner surface. Also provided is a drive and bearing assembly housed at least partially within the hollow of the support body. The drive and bearing assembly can include a drive block mounted to extend within the hollow of the support body at the first end thereof.
    Type: Application
    Filed: June 6, 2011
    Publication date: November 17, 2011
    Applicant: ERNST & YOUNG
    Inventors: Etienne LABBE, Rene Boivin
  • Publication number: 20110253260
    Abstract: A fine adjustment device is provided on a cutting wheel of a wood cutting machine. The fine adjustment device includes two lift units and a driving rod. The two lift units are disposed at two ends of the cutting wheel. The driving rod is axially disposed at one side of the cutting wheel and connected to the two lift units for driving the lift units to simultaneously move the two ends of the cutting wheel up or down, decreasing the height error of the two ends of the cutting wheel and enhancing the processing accuracy and grind quality.
    Type: Application
    Filed: April 14, 2010
    Publication date: October 20, 2011
    Inventor: Richard Chang
  • Publication number: 20110132494
    Abstract: A cutter head for surfacing a flitch, the cutter head including a shaft, a blade non-rotatably mounted on the shaft, wherein the flitch is surfaced by rotating the blade, a bushing including a bore, wherein the shaft runs through the bore, wherein a flange is eccentrically formed about the bore, a guide mounted on the flange of the bushing, wherein the flange axially offsets the guide with respect to the shaft, wherein the guide is arranged to support the cutter head against the flitch while the cutter head is surfacing the flitch, and wherein a radial distance between a tip of the blade and the guide determines a cutting depth of the cutter head, and wherein due to the guide being mounted on the eccentrically formed flange, the radial offset is determined based on a rotational orientation of the bushing about the shaft.
    Type: Application
    Filed: December 3, 2010
    Publication date: June 9, 2011
    Applicant: MERRITT MACHINERY, LLC
    Inventors: Arlington RUFF, Clifford RUFF, Mark J. ZIRNHELD, Michael T. SMITH
  • Patent number: 7954523
    Abstract: A cutter head assembly for a wood planing machine includes a shaft, a plurality of cutter-mounting sleeve modules sleeved on the shaft, and a plurality of cutter modules respectively secured to the sleeve modules such that cutting edges of the cutter modules extend beyond outer wall surfaces of the sleeve modules. An angularly variable positioning mechanism includes an axially extending guiding member disposed on the mount segment, and a plurality of axially extending guided members disposed on inner wall surfaces of the sleeve modules to mate with the axially guiding member. By virtue of fitting engagement between the guiding member and a selected one of the guided member of each sleeve module that are sequentially sleeved onto the shaft, the cutting edges together define a cutting contour line that winds around the shaft.
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: June 7, 2011
    Assignee: Shinmax Industry Co., Ltd.
    Inventor: Chin-Yuan Liu
  • Patent number: 7938155
    Abstract: A cutting assembly includes a knife assembly having a knife holder and a knife blade, a counter knife, and a scoring tip holder. In one arrangement, the counter knife is secured to a ring strander drum, the knife holder and scoring tip holder are carried by a clamping element, and knife blade is disposed between the counter knife and the knife holder. In a closed position, the clamping element causes the knife and scoring tip holders to generate a compressive force against the counter knife, thereby securing the knife blade within the cutting assembly. In an open position, the clamping element positions the knife and scoring tip holders in a spaced relationship relative to the counter knife, thereby allowing removal of the knife blade from the cutting assembly. Accordingly, an operator can replace the knife blade in the cutting assembly without having to remove the entire cutting assembly from the ring strander device.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: May 10, 2011
    Assignee: Simonds International Corporation
    Inventors: Anthony Maietta, Jeremy Dexter, Timothy House
  • Publication number: 20110088814
    Abstract: The invention concerns a beveller for providing an edge bevel for thin wood veneers and the like, comprising a milling cutter equipped with cutting knives projecting from the circumferential surface and rotating about a shaft subjected to a rotating force. The milling cutter is divided in its axial direction into at least two sections separated by a space, and at least one of the spaces is equipped with a presser directed to the surface to be cut.
    Type: Application
    Filed: October 18, 2010
    Publication date: April 21, 2011
    Applicant: RAUTE OYJ
    Inventor: Reijo SALOVAARA
  • Patent number: 7918252
    Abstract: Tree stump grinding teeth for use in tree stump grinding wheel assemblies and tree stump grinding wheel assemblies that include one or more such grinding teeth. In the preferred embodiment of the invention, the grinding tooth includes a mounting base having a substantially flat surface from which a plurality of cleats project. The cleats are adapted to be received in corresponding bores formed in the wheel. A resilient impact pad is positioned between the mounting base of the grinding tooth and the wheel. The resilient impact pad protects the surface of the wheel from impact forces applied to the grinding tooth.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: April 5, 2011
    Inventor: Johnny Gossett
  • Patent number: 7861754
    Abstract: Embodiments of the present invention provide a wood processing machine adapted to cut wood workpieces along multiple optimized cutting paths. In various embodiments, the wood processing machine includes a first saw assembly and a second saw assembly that is disposed down stream from the first saw assembly. The first saw assembly is adapted to cut the workpiece along the first optimized cutting path and the second saw assembly is adapted to cut the workpiece along the second optimized cutting path.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: January 4, 2011
    Assignee: USNR/Kockums Cancar Company
    Inventor: Rory M. Mitchell
  • Patent number: 7836923
    Abstract: A ring slicer with easily removable knife and knife assembly. According to one aspect of the invention, a ring assembly comprises two end plates for rotation about an axis of rotation. Each of the knife assemblies comprises an elongate knife having a cutting edge extending along an elongate axis, a base, and a clamp for clamping the knife to the base. The knife assemblies are adapted for installation between the end plates such that the shoulder portions of at least two shoulder bolts extend through one of the end plates into the base.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: November 23, 2010
    Assignee: Key Knife, Inc.
    Inventor: Bradley R. Stager
  • Patent number: 7832435
    Abstract: A cutter head of a planer machine includes a rotatable mount body having opposite flat mount and counter regions that are symmetrical to each other, a cutter blade disposed to abut against the flat mount region so as to enable a cutting edge to extend beyond a lateral end of the mount region, a press member having a tightened body which is tightened against the mount region, and a pressing strip which is brought to press the cutter blade against the mount region, and a counterweight disposed on the counter region so as to balance the combined weights of the cutter blade and the press member for smoothing the rotation of the mount body.
    Type: Grant
    Filed: May 6, 2009
    Date of Patent: November 16, 2010
    Inventor: Chin-Yuan Liu
  • Publication number: 20100218850
    Abstract: A sharp edged knife stop can secure the position of knife blades in a cutting or chipping system and prevent the separation of knife blades. The sharp edged knife stops can also assist in the cutting or chipping and lower the amount of debris build up that would occur with the use of traditional knife stops. The sharp edged knife stop has the same inclination angle as the knife blades and the same difference in knife edge height as the knife blades above that of a retaining ring height.
    Type: Application
    Filed: October 22, 2008
    Publication date: September 2, 2010
    Applicant: IGGESUND TOOLS AB
    Inventors: Robert L. Uelmen, Aaron J. Adent
  • Patent number: 7780102
    Abstract: The present disclosure relates to a wood chipper that has a feed roller driven by a hydraulic motor. Hydraulic fluid under pressure is provided to the motor through a two-stage pump, providing separate flows of fluid under pressure. The flows of the pump stages are combined for normal operation of the chipper. A bypass that will bypass the flow from one pump stage when the pressure of the fluid under pressure driving the motor exceeds a pre-selected level from increased load on the feed roller is provided. When the bypass is open the feed roller is slowed to reduce the feed rate of material into the chipper, and when the feed roller loads reduce, the flows will again be combined to speed up the feed roller.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: August 24, 2010
    Assignee: Crary Industries, Inc.
    Inventor: David S. Majkrzak
  • Patent number: 7770615
    Abstract: A ring saw includes a disc body having a circumferential edge with a first circumferential bearing groove. A cutting ring is mounted for rotation about the circumferential edge of the body. The cutting ring has an inner annular surface that carries both a circumferential gear profile and a second circumferential bearing groove. Ball bearings are positioned in side by side relation in a circumferential bearing race defined by the first circumferential bearing groove and the second circumferential bearing groove. A circumferential seal is provided between the body and the cutting ring, which is adapted to prevent abrasives from entering into the bearing race and interfering with ball bearings. At least one driving gear is carried by the body and engaged with the circumferential gear profile to impart rotational movement to the cutting ring.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: August 10, 2010
    Assignee: 1279059 Alberta Ltd.
    Inventors: Phillip Corfe, Lester Oilund
  • Publication number: 20100122752
    Abstract: An adjustable router or shaper cutter assembly that facilitates the formation of an edge contour such as a rounded over contour on work-pieces of differing thicknesses.
    Type: Application
    Filed: November 12, 2009
    Publication date: May 20, 2010
    Applicant: LEE VALLEY TOOLS, LTD.
    Inventor: Robin C. Lee
  • Patent number: 7708038
    Abstract: A cutterhead for a peripheral milling machine including a cutterhead body including a generally cylindrical portion and a plurality of circumferential, spaced and offset blade unit mounting cavities extending into the cutterhead body from the periphery of the cylindrical portion for receiving a blade unit. The cutterhead further includes a plurality of blade units each having at least one cutting edge and means for removably securing each of the removable blade units in the corresponding blade unit mounting cavity. The cutting edge of each of the blade units is disposed to align with the cutting edge of each of the other blade units in adjacent mounting cavities to form a substantially helical, stepped blade row when the blade units are secured to the cutterhead body.
    Type: Grant
    Filed: November 27, 2006
    Date of Patent: May 4, 2010
    Inventor: John S. Stewart
  • Patent number: 7708039
    Abstract: An apparatus for chipping material, particularly wood, includes a plurality of knife carriers are arranged around a mutual axis that form the boundaries of a cutting chamber while forming a comminution path. On the knife carriers, the slicing knives, under inclusion of a cutting angle ?, are detachably attached to the comminution path. The blades of the slicing knives uniformly project into the cutting chamber. To adjust the cutting angle ? so as to adapt it to the prevailing conditions, a control element for determining the cutting angle ? is detachably arranged between the slicing knives and the knife carriers.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: May 4, 2010
    Inventor: Hartmut Pallmann
  • Patent number: 7708040
    Abstract: A high speed planer head. A threaded member having a frustoconical portion wedges against a knife, to clamp a knife to a hub for rotating the knife about an axis of revolution. The knife has a front and back side, two cutting edges and mirror image symmetry about a mirror plane passing through the knife. To cut both a planar face and two opposed, radiused corners, the cutting edges include respective linear face-cutting portions disposed between two concave, arcuate corner-cutting portions.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: May 4, 2010
    Assignee: Key Knife, Inc.
    Inventor: Bradley R. Stager
  • Patent number: 7703487
    Abstract: A cutterhead for use with a power tool includes a generally cylindrical body with a knife recess extending generally parallel to an axis of the body. The knife recess has a wall at an acute angle to a tangent of the outer surface. Received in the knife recess are a knife and a bar that includes an angled side configured to sandwich the knife between the angled wall of the recess and the angled side of the bar. A pin extends from the bar and is received in an aperture of the knife to align the knife relative to the bar. A threaded height adjustment screw is received in a threaded bore in the bar to adjust a height of the knife with respect to the body. A securing screw is received in a threaded opening in the body to secure the bar and the knife to the body.
    Type: Grant
    Filed: September 18, 2006
    Date of Patent: April 27, 2010
    Assignee: Black & Decker Inc.
    Inventors: Jaime Garcia, Jeffrey Weston
  • Patent number: 7694704
    Abstract: Tree stump grinding teeth for use in tree stump grinding wheel assemblies and tree stump grinding wheel assemblies that include one or more such grinding teeth. In the preferred embodiment of the invention, the grinding tooth includes a mounting base having a substantially flat surface from which a plurality of cleats project. The cleats are adapted to be received in corresponding bores formed in the wheel. A resilient impact pad is positioned between the mounting base of the grinding tooth and the wheel. The resilient impact pad protects the surface of the wheel from impact forces applied to the grinding tooth.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: April 13, 2010
    Inventor: Johnny Gossett
  • Patent number: 7686045
    Abstract: An apparatus and method for forming a flat surface on a workpiece. The apparatus includes a cutterhead, having a plurality of cutting member, configured for forming a plurality of grooves in a workpiece. The cutterhead may be disposed generally at the interface of substantially parallel offset first and a second supports in order to form a plurality of grooves defining a datum or reference plane which may be implemented to orientate the workpiece for forming a flat surface. A plurality of ridges or the like structures defining grooves are included in the second support or as an attachment to the second support in order to support the workpiece from the material forming the interior surface of the grooves so that the workpiece may be orientated with respect to the datum plane. In an additional aspect, a second cutterhead may be included for removing or forming a flat surface which is parallel to the datum plane.
    Type: Grant
    Filed: July 13, 2005
    Date of Patent: March 30, 2010
    Assignee: Black & Decker Inc.
    Inventors: Jaime E. Garcia, Craig A. Carroll
  • Patent number: 7677282
    Abstract: A knife assembly and chipping knife therefor. The knife is rotated about an axis and has a front side facing the direction of rotation. The knife has a single deflector ridge extending from the front side of the knife and two indexing features on either side of the deflector ridge, each corresponding to spaced apart, parallel cutting edges of the knife defining a plane.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: March 16, 2010
    Assignee: Key Knife, Inc.
    Inventor: Bradley R. Stager
  • Patent number: 7600543
    Abstract: A stump grinding disk includes a metallic wheel defining an axis of rotation and including a pair of side surfaces and a circumferential outer edge surface. The outer edge surface includes a plurality of circumferentially spaced recesses. Each recess extends axially completely through the disk. A plurality of side cutting elements are mounted on each side surface. A plurality of outer peripheral cutters are spaced circumferentially apart around the outer edge surface. Wear strips are mounted in respective recesses. Each wear strip includes a metal matrix in which hard particles are disposed. Each wear strip defines a radially inner surface affixed to the wheel, and a radially outer surface arranged substantially flush with adjacent portions of the outer edge surface.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: October 13, 2009
    Assignee: Sandvik Intellectual Property AB
    Inventors: Kenneth Monyak, James Paumier
  • Patent number: 7584772
    Abstract: The invention concerns a method for clamping a knife of a disc chipper, wherein the knife is pressed from the knife disc via knife a clamp against a wear plate in a diagonal position (?) with respect to the plane of the knife disc with a compressive force (N) substantially parallel with the axis of the knife disc. According to the invention, the compensating force of the force directed to the knife clamp, caused by the diagonal position (?) of the knife and transversal to the compressive force (N) is exerted to the wear plate.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: September 8, 2009
    Assignee: Metso Paper, Inc.
    Inventor: Arvo Jonkka
  • Patent number: 7533704
    Abstract: A tool-shaft locking device for a planing machine is connected with a second end of the tool shaft having a first end connected with a belt wheel, including a bearing base, a locking rod, a spring and a locking button. The bearing base has a sidewise hole, two opposite deep position grooves at an upper and a lower side of the hole and two opposite shallow grooves at a right and a left side, and the locking rod has a first threaded end tightly engaging a center threaded hole of the locking button, which has two opposite position projections possible to be fitted tightly in the deep grooves so that the inner end of the locking rod may insert in one of position holes of the tool shaft body so as to lock the tool shaft immovable. Then a planing knife fixed on the tool shaft with bolts can be adjusted in its position, conveniently by easily screwing off the bolts.
    Type: Grant
    Filed: September 11, 2006
    Date of Patent: May 19, 2009
    Inventor: Bor-Yann Chuang
  • Publication number: 20090114312
    Abstract: A router includes a motor housing containing a motor and coupled to a tool holder configured to receive a tool bit that is driven rotationally by the motor. A base receives the motor housing for movement in an axial direction along a longitudinal axis of the motor housing. A depth adjustment mechanism enables adjustment of a position of the motor housing relative to the base along the axial direction. The depth adjustment mechanism has a threaded shaft rotationally coupled to one of the motor housing and the base and a thread engaging member coupled to the other of the motor housing and the base. The threaded shaft is engageable with the thread engaging member. A seam defined in the base adjacent to the depth adjustment mechanism.
    Type: Application
    Filed: December 17, 2007
    Publication date: May 7, 2009
    Applicant: Black & Decker Inc.
    Inventors: Randy G. Cooper, Mark A. Etter, Greg K. Griffin, Ginger L. Allen, Derrick Kilbourne
  • Patent number: 7520305
    Abstract: Systems for orienting strands and/or other types of particles are provided. The systems may have tabs which extend from orienting disks and/or collars and/or spacers which may be disposed on shafts. The tabs may prevent accumulation of strands between disks utilized within an orienting system. For example, the tabs may contact strands and/or other particles and guide or force the particles to be moved past the disks toward successive disks, or onto a screen or conveyor line.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: April 21, 2009
    Assignee: Weyerhaeuser NR Company
    Inventors: Mark T. Churchland, David J. McKenney, Joseph B. Jenkins, Dylan Gates, Paul E. Chambers
  • Patent number: 7404421
    Abstract: A blade, blade holder, and blade tool head is provided. The blade holder includes a mounting surface for a cleaver and an adjacent inclined mounting surface for a flat blade and blade fixing elements for detachably fixing the blades to their mounting surfaces. The blade mounting surfaces have holder contact surfaces with a V-shaped cross-section, and the blade fixing elements directly fix the blades, each of which has corresponding inclined V-shape contact surfaces, to their respective mounting surface, with a retaining force that acts between the inclined V-shaped contact surfaces. The blade has on its lateral side an oblique bearing region, which permits both blades to lie flat against one another.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: July 29, 2008
    Inventor: Martin Guels
  • Publication number: 20080170917
    Abstract: The router bit includes an upper and a lower cutter, axially aligned and separated by a fixed longitudinal displacement. No substantial portion of the bit extends beyond the lower end of the lower cutter. In some embodiments, the lower cutter may be configured with bottom face blades to allow the router to be used as a plunging bit. The cutters may use wing blades or spiral blades. The portion of the bit intervening between the upper and lower cutters may also be configured as a cutter. In some embodiments, the router bit is integral. In other embodiments, it comprises separate elements that may be axially secured.
    Type: Application
    Filed: January 17, 2007
    Publication date: July 17, 2008
    Inventor: David Hilker
  • Patent number: 7398805
    Abstract: A self-propelled stump cutting apparatus which also functions as a tow-behind type, resultant of a telescoping tongue hitch. The apparatus is narrowed in width, while in work mode with tow wheels suspended above ground by removing the detachable tow wheel assemblies. Self-propulsion is accomplished by the employment of a unique, retractable, hydraulically motivated tractor axle assembly. This assembly is located on a hinged sub-frame attached to the apparatus main frame. The tractor axle assembly is forcibly positioned and locked by way of a mechanical assembly which is motivated by the vertical movement of the hydraulically maneuvered cutting wheel boom. A major additional feature is the novel direct coupling of the cutting wheel driving hydraulic motor to the cutting wheel axle shaft. This is accomplished by the employment of a compact, self-aligning internal shaft coupling which eliminates commonly used costly and inefficient belt drive systems.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: July 15, 2008
    Inventors: Donald William Dubbs, Ryan Curtis Dubbs
  • Publication number: 20080142118
    Abstract: A ring saw includes a disc body having a circumferential edge with a first circumferential bearing groove. A cutting ring is mounted for rotation about the circumferential edge of the body. The cutting ring has an inner annular surface that carries both a circumferential gear profile and a second circumferential bearing groove. Ball bearings are positioned in side by side relation in a circumferential bearing race defined by the first circumferential bearing groove and the second circumferential bearing groove. A circumferential seal is provided between the body and the cutting ring, which is adapted to prevent abrasives from entering into the bearing race and interfering with ball bearings. At least one driving gear is carried by the body and engaged with the circumferential gear profile to impart rotational movement to the cutting ring.
    Type: Application
    Filed: December 3, 2007
    Publication date: June 19, 2008
    Applicant: 1279059 ALBERTA LTD.
    Inventors: Phillip Corfe, Lester Oilund
  • Publication number: 20080115857
    Abstract: A planing head, cylindrical body for a planing head and a method of manufacture thereof are provided. The planing head includes a cylindrical body having an axis of rotation, an outer surface around the axis of rotation, and opposite first and second end faces. A plurality of blade assemblies is arranged along the outer surface. A plurality of grooves is provided in the outer surface and each groove is configured to receive a respective one of the plurality of blade assemblies. A hydraulic pressure system for supplying a hydraulic pressure to each of the blade assemblies is provided. The hydraulic pressure system includes a plurality of transverse channels for receiving a pressurised hydraulic fluid and a plurality of oblique channels hydraulically linking the plurality of transverse channels. Each transverse channel extends at least partially through the cylindrical body.
    Type: Application
    Filed: August 10, 2007
    Publication date: May 22, 2008
    Applicant: LES PRODUITS GILBERT INC.
    Inventors: Sylvain Gilbert, Daniel Pare
  • Publication number: 20080066829
    Abstract: A cutterhead for use with a power tool includes a generally cylindrical body with a knife recess extending generally parallel to an axis of the body. The knife recess has a wall at an acute angle to a tangent of the outer surface. Received in the knife recess are a knife and a bar that includes an angled side configured to sandwich the knife between the angled wall of the recess and the angled side of the bar. A pin extends from the bar and is received in an aperture of the knife to align the knife relative to the bar. A threaded height adjustment screw is received in a threaded bore in the bar to adjust a height of the knife with respect to the body. A securing screw is received in a threaded opening in the body to secure the bar and the knife to the body.
    Type: Application
    Filed: September 18, 2006
    Publication date: March 20, 2008
    Applicant: Black & Decker Inc.
    Inventors: Jaime Garcia, Jeffrey Weston
  • Publication number: 20080060721
    Abstract: A tool-shaft locking device for a planing machine is connected with a second end of the tool shaft having a first end connected with a belt wheel, including a bearing base, a locking rod, a spring and a locking button. The bearing base has a sidewise hole, two opposite deep position grooves at an upper and a lower side of the hole and two opposite shallow grooves at a right and a left side, and the locking rod has a first threaded end tightly engaging a center threaded hole of the locking button, which has two opposite position projections possible to be fitted tightly in the deep grooves so that the inner end of the locking rod may insert in one of position holes of the tool shaft body so as to lock the tool shaft immovable. Then a planing knife fixed on the tool shaft with bolts can be adjusted in its position, conveniently by easily screwing off the bolts.
    Type: Application
    Filed: September 11, 2006
    Publication date: March 13, 2008
    Inventor: Bor-Yann Chuang