Patents Examined by W. Donald Bray
  • Patent number: 6971594
    Abstract: A material grinding apparatus (10) includes an annular upper enclosure (12) defining an upper chamber (34) into which material to be ground is introduced from above, a conical lower enclosure (14) defining a lower chamber (36) and supported in tandem with the upper enclosure (12), and one or more angled slots (56) defined in the sidewall of the upper enclosure (12) through which compressed air is introduced relatively circumferentially into the upper chamber (34) so as to generate a circular vortex flow of air and material in the upper enclosure (12) for grinding and drying to take place. The air flow is exhausted by a pipe (92) through an upper end of the upper enclosure (12) and the dried ground material is discharged through an open lower end of the lower enclosure (14). The lower enclosure (14) is a downward continuation and extension of the upper enclosure (12) so as not to extend upwardly into nor past the upper chamber (34) thereof.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: December 6, 2005
    Assignee: Vortex Dehydration Technology, LLC
    Inventor: Francis D. Polifka
  • Patent number: 6823908
    Abstract: A method for manufacturing bamboo stats uses high quality window blinds. The method comprises the steps of slicing and smoothing, streaming and boiling, drying, further smoothing, assembling, and cutting. Through a refinement process with chemical substances, the bamboo slats can be a pressure-resistant, moisture-proof, and insects-proof product. The processed bamboo slats are manufactured by an integrated operation of mass production so as to form a high quality bamboo window curtains with a lower cost.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: November 30, 2004
    Inventor: Angela S. H. Hsu
  • Patent number: 6820663
    Abstract: A tool for machining workpieces of wood, plastic material, or the like has at least one plane head provided with cutting knives and having a first end and a second end. A first surface milling cutter is arranged on the first end of the plane head. At least one second surface milling cutter is connected to the plane head and is adjustable relative to the first surface milling cutter. The plane head has at least one axial guide for the second surface milling cutter. The axial guide is a fitting groove provided in the mantle surface of the plane head. The second surface milling cutter has a feather key engaging the fitting groove.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: November 23, 2004
    Inventors: Heinrich Englert, Albrecht Dawidziak, Josef Ballweg, Bernd Martin
  • Patent number: 6789589
    Abstract: A controller for controlling the operation of gripping devices of a loader harvester bulk handling device. In the controller, the coupling of a valve with the operating device of the loader harvester's cross-cutting device, and with a tilting mechanism of a tilting frame, is arranged to operate in conjunction with the cutting device and felling so that the gripping devices are normally in the closed position. The gripping devices are arranged, at least in the felling position, to always open when the guide bar or equivalent cutting device is operating or when the harvester head turns to the delimbing position, and to close immediately after the operation in question.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: September 14, 2004
    Assignee: Outokummun Metalli Oy
    Inventors: Veikko Kettunen, Kari Kinnunen, Jussi Makkonen
  • Patent number: 6789587
    Abstract: 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 apparatus includes a control unit positioned on a surface vessel, such as a barge or large boat, and an underwater vessel connected together by an umbilical. Preferably the underwater vessel is a remotely controllable submersible including a grapple for releasably holding each tree to be cut, a saw, a gas supply connectable to a gas source located on the surface vessel, and an air bag deployment and inflation assembly for inflating the air bag and securely attaching it to the tree. The underwater vessel is initially loaded with a plurality of air bags which are stored in a magazine located in the interior of the vessel.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: September 14, 2004
    Assignee: Triton Logging Company Inc.
    Inventors: Stewart A. Mossman, Forest G. Metsker
  • Patent number: 6789588
    Abstract: A wood planing machine includes a support carriage movably mounted on a mounting frame for supporting a cutting shaft. A motor housing and a shaving collecting member are mounted on the carriage. The collecting member defines a shaving passageway in the vicinity of the cutting shaft and in fluid communication with an air conduit such that an air stream introduced from the motor housing can entrain wood shavings collected in the collecting member. A blower mechanism includes a drive shaft coupled to and driven by the cutting shaft for rotating an impeller for drawing wood shavings from the collecting member into the blowing mechanism and out of a discharge member.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: September 14, 2004
    Inventors: Juei-Seng Liao, Pei-Lieh Chiang
  • Patent number: 6772810
    Abstract: A canter chipper head having a base member machine shaped from a unitary block of metal and having a truncated conical outer face terminating in an end face and at least two chip discharge though passages. There are a pair of cutter units mounted in respective ones of a pair of recesses adjacent each chip discharge opening. The recesses and outline of the cutter units match and are machined to a close tolerance fit to positively locate the cutter units on the base member. Each cutter unit has a cutting knife clamped between a pair of plates and each plate is secured to the base member with a threaded stud.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: August 10, 2004
    Inventors: Jean-Guy Y. Bouchard, Laurent J. Y. Trudel, Joseph A. P. Robitaille
  • Patent number: 6772809
    Abstract: The invention relates to a knife assembly for a veneer lathe, the knife assembly comprising heads having mounted therebetween a knife beam and a nose bar beam, the beams respectively supporting a peeling knife and a solid nose bar. The knife assembly is turnable about an axis of rotation aligned parallel to the longitudinal axis of the peeling knife and the nose bar, whereby the angular position of the knife assembly relative to the lathe carriage heads is adapted to change about this axis of rotation in compliance with the progress of veneer peeling. In the knife assembly, the angular position of the nose bar relative to the peeling knife is adapted changeable during peeling in order to control the angle between the nose bar and the peeling knife.
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: August 10, 2004
    Assignee: Raute Oyj
    Inventor: Jussi Puranen
  • Patent number: 6769464
    Abstract: A log splitter system for splitting logs in an efficient manner. The log splitter system includes a support beam, a loader connecting structure for attaching to a tractor loader, a main engaging member slidably attached to the support beam, a splitting wedge attached to an end of the support beam, and an actuator unit attached to the main engaging member. The actuator unit forces the main engaging member toward the splitting wedge with a log positioned between thereof thereby splitting the log.
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: August 3, 2004
    Inventor: Sandra L. Jenkin
  • Patent number: 6746745
    Abstract: A blinds slat has a major portion being strips of bamboo and a minor portion being one or more pairs of wooden strips that are located at or near opposite side extremities of the slat. The resulting composite bamboo and wooden slat as exemplary resistance to warping and other deleterious effects of exposure to sun and moisture. Also disclosed is a method for producing the slats that is particularly advantageous in avoiding environmental harm, in that only small amounts of wood are used.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: June 8, 2004
    Assignee: Nien Made Enterprise Co., Ltd.
    Inventor: Ming Nien
  • Patent number: 6742558
    Abstract: A holding device for holding a tool includes a holding block having a central opening formed from a stack of laminated members secured together. The block includes holes extending away from the central opening. A pair of support plates are secured to the block and are secured at right angles to one another. Key hole slots are in one of the support members and have a first bore containing a slug and a second bore at right angles thereto. A threaded member extends through the other of the support members, through the second bore, and is threaded into the slug within the first bore.
    Type: Grant
    Filed: May 14, 2003
    Date of Patent: June 1, 2004
    Assignee: Witt Family Partnership, L.P.
    Inventor: Bradley R. Witt
  • Patent number: 6732624
    Abstract: The invention pertains to a cutting device, particularly for the cutting of predetermined breaking points in plastic membranes, foils or the like, with an air-permeable supporting surface for the plastic membrane or the like and with an aspirating device, with which the plastic membrane or the like is applied onto the supporting surface. The supporting surface is formed by a sintered metal plate.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: May 11, 2004
    Inventor: Heinz Gaubatz
  • Patent number: 6729372
    Abstract: A delimber (10) for removing secondary limbs from a primary limb of a tree Comprises an arm (12) arranged to extend around the primary limb. The arm is provided with cutter segments (18) oriented to cut the secondary limbs from the primary limb of the tree. The delimber also comprises a means (50, 52, 54) for moving the arm at least partly along the length of the primary limb. In use, the arm is extended around the primary limb of the tree and is then moved along the length of the primary limb, thereby cutting secondary limbs from the primary limb.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: May 4, 2004
    Inventors: Susan Koster, Stephen Koster
  • Patent number: 6729371
    Abstract: A household workbench assembly (1) that utilizes dry dimensional lumber, plywood, metal, and plastic to provide a versatile, rugged workbench, requiring minimal assembly time and having a pleasing cosmetic outer appearance. The versatility and simplicity of the workbench design comes from the unique primary metal leg design (2) that allows rapid attachment of all components (3-8). The leg (2) is constructed as a load bearing metal structural frame with a front to back length equal to the product of the average width of a specific type of dry dimensional lumber (7) times an integer number of pieces. Holes (12) located along the top surface of the metal leg and spaced appropriately provide for attachment of dry dimensional lumber and prevent the lumber from warping or splitting. Brace attachment holes (13) pre-drilled symmetrically about the vertical axis of the leg (2) and along the sides of each vertical member provide for attachment of all lateral and drawer support braces (3,4,5).
    Type: Grant
    Filed: February 5, 2001
    Date of Patent: May 4, 2004
    Inventors: Kevin Sheahan, Thomas Bulk
  • Patent number: 6725891
    Abstract: Machine for profile working of front surfaces on oblong wood workpieces resolves the problem of simple, accurate and fluent or continued working of workpieces front surfaces of various lengths and intersections, and the machine is of a compact construction. It is characteristic by the construction of the entrance turnover device transversely placed between longitudinal conveyors with carriers, which has on the periphery of rotating wheels constructed movable bearing couplings, and by them fixed guiding plates with the groove inside which there are movably inserted guided bearings of bearing couplings. In the area of the entrance turnover device there are placed under an optional angle the oblique roller conveyors, inside which there are flexibly and circularly movably inserted rolls.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: April 27, 2004
    Inventors: Pavel Ledinek, Gregor Ledinek
  • Patent number: 6722960
    Abstract: An apparatus for sizing and sanding a workpiece, the apparatus comprising a housing having a horizontally throughgoing passage, a feed conveyor for advancing the workpiece through the passage, the workpiece having an upper surface that advances through the passage along a pass line, a sanding station for finishing the upper surface, and a planing station for sizing the workpiece along the upper surface. The planing station of the present invention has a driven planer head, an antikickback assembly, a chip-break assembly, and means for disengaging the planing station to convert the apparatus from a planing and sanding configuration to a sanding-only configuration.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: April 20, 2004
    Assignee: Cemco, Inc
    Inventor: Gene R. Brooks
  • Patent number: 6719022
    Abstract: An apparatus for producing an essentially wedge-shaped wood flake comprises a chipping tool rotating about a first, horizontal axis for chipping the flake out of the wood such that the flake has a first, concave surface and a second, convex surface. The flake is delimited between the surfaces. A circular saw blade is provided rotating about a second, vertical axis for removing wood in an area in which the surfaces intersect in an imaginary tip, prior to the chipping out.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: April 13, 2004
    Assignee: Esterer WD GmbH & Co.
    Inventors: Hans Dietz, J├╝rgen Edelmann
  • Patent number: 6719023
    Abstract: Apparatus for producing rectangular furniture boards with a glued-on edge, in which the following are arranged one after another in the passage direction: a longitudinal sawing device (14), which divides a rectangular initial board (12) into a plurality of parallel longitudinal boards (12a, 12b, 12c, 12d), a longitudinal gluing device (31), which in each case glues a longitudinal edge onto both longitudinal sides of a longitudinal board (12a) passing through and machines the edge, a transverse sawing device (38), which divides a longitudinal board (12a) transversely with respect to its longitudinal direction into furniture boards (39) with a predetermined size, a transverse gluing device (40), which in each case glues a transverse edge onto both transverse sides of a furniture board (39) passing through and machines this edge.
    Type: Grant
    Filed: May 2, 2002
    Date of Patent: April 13, 2004
    Assignee: Paul Ott GmbH
    Inventors: Hans Kaser, Gerhard Pittrich
  • Patent number: 6715390
    Abstract: For a woodworking machine having a horizontally disposed working table with a top planar surface and a saw blade transverse to the table, there is provided an elongated work-retainer fence having a planar facing disposed substantially perpendicular to the planar surface of the table. The work-retainer fence is spaced from the saw blade and parallel to the line of the saw blade; and the fence includes at least one horizontally disposed support that is substantially normal to the planar facing of the fence and is distended outwardly from at least one of the marginal edges of the table. The support has a substantially top planar surface that is substantially co-planar with the planar surface of the working table.
    Type: Grant
    Filed: October 21, 2002
    Date of Patent: April 6, 2004
    Inventor: Tom R. Flader
  • Patent number: 6712106
    Abstract: A dust bag for wood working machine includes a first open end with which a mounting piece is engaged so as to be mounted to a blow outlet of the wood working machine, and a second open end which is cooperated with a securing device such that the second open end is secured to a bucket. The dust bag is made of air-permeable material and the wood shreds are blown into the dust bag.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: March 30, 2004
    Inventor: Chin-Feng Wang