Double Saw Having Intermediate Cutter Patents (Class 144/222)
  • Patent number: 11065780
    Abstract: An adjusting mechanism for a cutting tool having knife holders circumferentially interspaced and having a back surface facing a circumferential direction and a seat surface facing a radial direction. The mechanism includes a support member having fixation points securable to the cutting tool. A deformable member is sandwiched between the cutting tool and the support member. The deformable member defines an adjustable lateral reference surface facing an axial direction to be in abutment with the knife inserts. An adjustment member is mounted on one of the support member and the deformable member between the fixation points of the support member. The adjustment member is operable to exert a force on the deformable member to locally deform the deformable member from an undeformed state to a deformed state. An axial distance between the support member and the deformable member is greater in the deformed state than in the undeformed state.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: July 20, 2021
    Assignee: NAP ASSET HOLDINGS LTD.
    Inventor: Philippe Turcot
  • Patent number: 10105773
    Abstract: A box-joint blade system includes left- and right-directed blades that each include a saw plate, a set of saw tips, and a set of gullets disposed between the tips. The tips of each blade are axially offset from the saw plate in opposite directions, such that the blades may be mounted on the axis of the saw in either a first configuration, with left and right saw tips outwardly offset and producing a wide cut, or a second configuration, with the tips inwardly offset and producing a narrow cut. In at least the second configuration, the tips of each blade are disposed within the gullets of the other. The tips optionally have a positive hook angle of up to 20° or more, to produce a smooth, flat-bottomed groove in a workpiece.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: October 23, 2018
    Assignees: Robert Bosch Tool Corporation, Robert Bosch GmbH
    Inventor: James M. Brewer
  • Patent number: 9061360
    Abstract: A hub device for a pair of saw blades, which saw blades are arranged to rotate about the same rotational axis and in an opposite direction to one another. The hub device includes a first blade adapter, which has a support surface for the first saw blade, and a second blade adapter, which has a support surface for the second saw blade and a central fastener for a blade lock, which is arranged to secure both blades. The support surface of the first blade adapter is designed to engage the first saw blade. The support surface of the second blade adapter is designed to engage the second saw blade.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: June 23, 2015
    Assignee: Twinblade Technolgies Holding Sweden AB
    Inventor: Hans Ericsson
  • Patent number: 6712105
    Abstract: A method and apparatus for planing an article of wood. Specifically disclosed is a cutting head adapted for rotation about an axis, and at least one elongate knife including a linear cutting edge for cutting the wood. The cutting edge terminates at opposite ends of the knife in respective tips. The knife is held by the cutting head so that each tip is rotated about the axis of rotation at the same fixed radius. However, the cutting edge is misaligned by a predetermined bias angle with respect to the axis of rotation. Where a plurality of the cutting heads are stacked or ganged together, preferably, the angle of misalignment for the knives of some of the cutting heads is reversed from the angle of misalignment for the knives of others of the cutting heads.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: March 30, 2004
    Assignee: Key Knife, Inc.
    Inventors: Edwin O. Cannon, Thomas Charles Hinchliff
  • Patent number: 6564815
    Abstract: A mobile robot for cleaning, stripping, reconditioning or refurbishing a coating on a metal work piece has a remote controlled power module for locomotion and a working head for removing the coating. The robot is held on the metal work piece by magnets mounted on the robot but spaced from the work piece.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: May 20, 2003
    Assignee: UltraStrip Systems, Inc.
    Inventor: Dennis McGuire
  • Patent number: 6390159
    Abstract: An apparatus for automatically cutting a drawer slide groove and drilling a drawer-securing pin hole in a drawer with a bottom with a number of edges extending downwardly from the bottom, and a rear wall. The apparatus includes a support, the drawer resting on the support during the cutting and drilling operations; a power saw having a moving blade adapted for cutting a groove in the drawer; a first guide mounted on the support and adapted to engage one of the plurality of downwardly extending drawer edges, thereby positioning the saw blade adjacent the downwardly extending drawer edge; a drill carrier movable in a first direction and a second direction relative to the support; and a power drill mounted in the drill carrier and having a drill bit adapted to drill a drawer-securing pin hole in the rear wall of the drawer.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: May 21, 2002
    Inventor: Thomas G. Pinske
  • Patent number: 6058992
    Abstract: A method and apparatus for profiling a log. In a profiler having first and second knives disposed on a rotating disc, a mounting member is adapted to mountably receive both the first and second knives so that each blade has a point on its cutting edge that is proximate a point that is on the cutting edge of the other knives. Preferably, the points are end most points and abut one another.
    Type: Grant
    Filed: June 8, 1999
    Date of Patent: May 9, 2000
    Assignee: Key Knife, Inc.
    Inventors: Bradley R. Stager, John S. Luecke
  • Patent number: 6021828
    Abstract: A trim saw is mounted in conjunction with a hogger, or device for reducing scrap to particles, or saw dust. The hogger is made up of a any desired number of units that will reduce scrap to sawdust. Each unit has a pair of oscillator plates that hold a pair of semicircular blade portions at an angle to the axis of rotation, so the blade portions sweep a wide kerf. Since the blades are generally conventional saw blades, they can be sharpened by conventional machines, obviating the need for hand sharpening. Also, the relatively fine teeth on the hogger blades allows substantially uniform power loading for uniform operation.
    Type: Grant
    Filed: April 19, 1999
    Date of Patent: February 8, 2000
    Assignee: Cut Rite Corporation
    Inventor: Denton C. Snair
  • Patent number: 5316061
    Abstract: Dado shims that are disks of substantially incompressible, flexible, color coded plastic sheet material of uniform predetermined thicknesses having a central arbor hole and a radial slot narrower in width than the arbor hole diameter so that each shim is shaped like the letter "C" and can be distorted slightly during positioning on a saw arbor between dado set blades without removing any of the blades, by slipping the shim over the arbor through the slot until the shim seats on the arbor within the shim arbor hole.
    Type: Grant
    Filed: March 16, 1993
    Date of Patent: May 31, 1994
    Inventor: Leonard G. Lee
  • Patent number: 5309962
    Abstract: A multiple saw blade adjustable dado cutter assembly. The cutter can be used with a table saw or a radial arm saw, for example, to make dado cuts in board lumber. A pair of cooperating cams, each connected to a saw blade, can be adjusted to make a dado cut of a desired width. If the desired dado width is wider than the two blade configuration can cut, a center cam attached to another blade can be inserted between the pair of cooperating cams. With the three blade configuration, the three cams cooperate to allow the three blades to be spaced for the desired width of cut. In both configurations and at any spacing width, the two or three blades employed remain in a generally parallel alignment and transverse to the axis of the arbor on which the assembly is secured. To permit the blades to function with this geometrical relationship and to be adjustable, not all of the blade teeth lie in the same plane. The sequentially operating three or more cam assembly has uses beyond dado cutting.
    Type: Grant
    Filed: May 13, 1993
    Date of Patent: May 10, 1994
    Assignee: Vermont American Corporation
    Inventors: Wilfred M. McCord, Jr., David T. Brutscher
  • Patent number: 4840207
    Abstract: A complete production line of a wood I-beam manufacturing apparatus and the method of manufacture is disclosed wherein generally identical chord members are simultaneously formed by cutting of a wooden stock material into the chord members and simultaneously providing grooves in one surface of each chord into which web members are received to form the I-beam. The individual web members are conveyed along a chords and webs assembly line between the grooved chords and the chords are converged so that the grooves interfit with the web edges to form the I-beam. The web longitudinal edges are preferably beveled in an off-line beveling operation. The beveled webs are stacked for feeding into the chords and webs assembly line. Prior thereto, first and second glue layers are applied to one transverse edge of each stacked web member. The web members are subsequently conveyed in the assembly line in end-to-end abutting relationship.
    Type: Grant
    Filed: July 1, 1987
    Date of Patent: June 20, 1989
    Assignee: MiTek Industries, Inc.
    Inventor: Jerry L. Lines
  • Patent number: 4279280
    Abstract: An auxiliary dado shaft to support a plurality of rotary saw blades in a laminated pack for cutting wide grooves and dados, is provided with a central bore for receiving a through bolt for simultaneous securement of the blades together and engagement of a mating thread in the motor drive shaft. A tubular socket on the inboard end of the auxiliary dado shaft is adapted to engage the stubshaft of the drive motor and is secured thereto.
    Type: Grant
    Filed: November 13, 1979
    Date of Patent: July 21, 1981
    Inventor: Raul R. Pairis
  • Patent number: 3986259
    Abstract: This invention relates to an improved portable powered tool for removing bark from living pine trees preparatory to inducing oleoresin flow by known chemical means. This tool utilizes a lightweight, chainsaw-type engine to power a specially designed set of blades partially enclosed in a housing designed to provide multiple guides for producing the type cut necessary to properly prepare a tree for collection of naval stores and to provide a method for discharging debris away from the operator and work area.
    Type: Grant
    Filed: April 27, 1976
    Date of Patent: October 19, 1976
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Robert D. McReynolds, Donald R. Roberts, Mozon T. Proveaux, Junior Broomfield, Ernest R. Crews, M. Tillman Richards, Jr., Ralph W. Clements, William J. Peters