Included In Tool-cluster Patents (Class 72/194)
  • Patent number: 9757781
    Abstract: The present invention is directed to an improved metal strips straightener, including an infeed device and a pressure frame. The infeed device has one or more leveling rollers, and the pressure frame has a roller frame. The roller frame has one or more roller blocks to bring a metal strip into a upward full encirclement wrap. Each roller block is attached with a camshaft, where each camshaft is connected to a motorized drive system. Rotation of the camshafts actuates the roller blocks to move the metal strips, applying pressure on the metal strips during the passing through of the roller blocks. A closing cylinder is attached to one end of a roller block, where the closing cylinder has a convex contact surface. Multiple roller blocks are connected to each adjacent roller blocks via their connected closing cylinders.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: September 12, 2017
    Inventor: Ching Chung Lai
  • Patent number: 9481024
    Abstract: Pipe joining compresses sleeves on abutted pipe ends. The sleeves are deformed beyond elastic limits, and the pipe ends are moved inward and exert outward forces on the sleeves. A machine has racks and an assembly of radial geared rollers which turn and compress the sleeves with grooves surfaces. Assemblies of fixed racks and assemblies of rollers on axles relatively move by hydraulic power, causing the rollers to turn and compress the sleeves.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: November 1, 2016
    Inventor: Davor Petricio Yaksic
  • Patent number: 7047782
    Abstract: A die roll 3 comprises a core part 3a which is formed of an elastic material and faces a punch part 2a of a punch roll 2. The core part 3a presses a bottom portion 4b of a drawn portion 4a of a metal material 4 and is separate from a surrounding die part 3b and is provided with a space 3c at the whole outer periphery of the core part 3a. In accordance with the above configuration, swelling is suppressed at the bottom portion 4b of the drawn portion 4a and production of large wrinkles, which is a reason for folds, can be prevented by increase of pressing areas for preventing wrinkles at both sides of the drawn portion.
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: May 23, 2006
    Assignee: DENSO Corporation
    Inventors: Kuniharu Teshima, Kazuhiro Mitsukawa, Shoichi Takenouchi
  • Publication number: 20040250589
    Abstract: A microcavity forming device is provided that includes a microcavity forming means of making microcavities in a surface of a heated filament wire. The microcavity forming means includes an array of teeth for engaging the surface along a length dimension of the filament wire. The device further includes a drawing means of drawing the filament wire along the length dimension. The drawing means draws the filament wire along the length dimension and the array of teeth engages the surface of the filament wire to form the microcavities.
    Type: Application
    Filed: June 12, 2003
    Publication date: December 16, 2004
    Inventors: Daniel Hogan, Makoto Ishizuka
  • Patent number: 6082990
    Abstract: A stent crimping tool for firmly and uniformly crimping a stent onto a balloon catheter. The stent crimping tool is constructed of three orthogonally arranged semi-circular shaped cams rotatably mounted on a common base. Two cams are disposed horizontally side-by-side and one cam is vertically disposed. Rotation of the three cams is synchronized by interacting racks on each cam. A groove is formed into the outer circumference of each cam and the three cams are arranged on the base, which also includes a groove, to collectively form an axial space in which a stent-catheter assembly is inserted. Rotation of the cams draws the uncrimped stent and catheter into the axial space in which the stent is crimped onto the balloon catheter by the compressive forces exerted by the grooves of the cams and the base.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: July 4, 2000
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Gregg A. Jackson, Stephen A. Morales
  • Patent number: 5987958
    Abstract: Several methods and subsystems are disclosed for aligning a workpiece as it is being loaded into a die space of a bending apparatus, and for performing sensor-based control of a robot as it moves a workpiece from one location to another within a bending apparatus environment. A backgaging mechanism is provided with finger gaging mechanisms having force sensors for sensing forces in directions perpendicular to and parallel to a die. In addition, a robot gripper sensor is provided for sensing either or both of shear forces and normal forces created by movement of a workpiece being held by the gripper.
    Type: Grant
    Filed: November 28, 1997
    Date of Patent: November 23, 1999
    Assignees: Amada Company, Ltd., Amada America, Inc.
    Inventors: Richard M. Moore, Jr., David Alan Bourne, Kerry L. Elkins, Anne Marie Murray, Robert H. Sturgas, Jr., Kensuke Hazama
  • Patent number: 5950484
    Abstract: In order to improve a bending center comprising a bending unit, a loading device with a feed table for receiving a sheet-metal part to be inserted, and a manipulator arrangement, with which the sheet-metal part can be gripped, moved as well as rotated, in such a manner that handling of the sheet-metal part is as error-free as possible with loading times which are as short as possible it is suggested that the loading device have a sensor, with which the position of the sheet-metal part relative to a defined insertion position into the bending unit can be determined, and that the loading device have a control which controls the manipulator arrangement handling the sheet-metal part with respect to the movement in the first and second directions as well as the rotation about the axis of rotation on the basis of the position of the sheet-metal part determined by the sensor in such a manner that the manipulator arrangement inserts the sheet-metal part into the bending unit in the exactly defined insertion position.
    Type: Grant
    Filed: May 22, 1998
    Date of Patent: September 14, 1999
    Assignee: Reinhardt Maschinenbau GmbH
    Inventor: Wolfgang Kutschker
  • Patent number: 5875669
    Abstract: The present invention provides a rolling method and apparatus for manufacturing concrete-reinforcing steel bars, wherein the invention provides for obtaining various concrete-reinforcing steel bars satisfying the required specifications for knot height while using the same finishing rolls even if the diameters of the final product steel bars are different. According to the present invention, two pairs of rolls (total of four rolls) each having a roll caliber and one or more knotting round calibers are used for the final finishing pass, and the two pairs of rolls are arranged to exert rolling pressures in two orthogonal directions on a raw material S.
    Type: Grant
    Filed: December 9, 1996
    Date of Patent: March 2, 1999
    Assignee: Kawasaki Steel Corporation
    Inventors: Ryo Takeda, Hidenori Kondo, Tomoyasu Sakurai
  • Patent number: 5761940
    Abstract: Several methods and subsystems are disclosed for aligning a workpiece as it is being loaded into a die space of a bending apparatus, and for performing sensor-based control of a robot as it moves a workpiece from one location to another within a bending apparatus environment. A backgaging mechanism is provided with finger gaging mechanisms having force sensors for sensing forces in directions perpendicular to and parallel to a die. In addition, a robot gripper sensor is provided for sensing either or both of shear forces and normal forces created by movement of a workpiece being held by the gripper.
    Type: Grant
    Filed: February 9, 1995
    Date of Patent: June 9, 1998
    Assignees: Amada Company, Ltd., Amada America, Inc.
    Inventors: Richard M. Moore, Jr., David Alan Bourne, Anne Marie Murray, Robert H. Sturges, Jr., Kensuke Hazama
  • Patent number: 5611190
    Abstract: The invention relates to metal rod with a substantially round cross section comprising at least six rows of ribs arranged in the surface spread over the periphery, the surface of which is preferably provided with six rows of ribs and the ribs of at least one row are optionally arranged obliquely in the surface relative to the rod direction, wherein the ribs of adjoining rows of ribs are optionally oriented in herringbone form.
    Type: Grant
    Filed: October 2, 1995
    Date of Patent: March 18, 1997
    Inventor: Jacobus L. Van Merksteijn
  • Patent number: 5546781
    Abstract: Process for the production of a toothed rack via cold forming, the rack produced thereby, and an apparatus for practicing the process. The cold formed rack workpiece shows multiple traces of cold forming in the toothing direction. During the production process, the workpiece, in the apparatus, is moved transversely to the axis of the rolling head, relative to the rotatably driven rolling head. Rolls, having forming ribs, are rotatably journalled within the rolling head, along at least one helical line, with the rolls rotating with the rolling head in a planetary manner. Thereby, each roll performs, in quick sequence, single rolling steps that overlap each other in the feed direction of the apparatus slide. Therein, the tooth space form-type forming ring ribs engage the workpiece.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: August 20, 1996
    Assignee: Ernst Grob AG
    Inventor: Hans Krapfenbauer
  • Patent number: 4995252
    Abstract: A method and machine for forming internal enhancement ribs in heat exchanger pipe or tubing comprises a mandrel which is supported within the tubing and a plurality of opposed rotary dies which have their axes perpendicular to the tube axis so that they rotate in the direction parallel to the tube axis. The rotary dies have a circumferential contact portion that has a concave arcuate profile. In one embodiment, the circumferential surface is scalloped with a succession of axially raised portions. In another embodiment, the rotary die carries a plurality of circumferential rollers.
    Type: Grant
    Filed: March 6, 1989
    Date of Patent: February 26, 1991
    Assignee: Carrier Corporation
    Inventors: Gerald F. Robertson, Ross A. Moyer, John R. McManus
  • Patent number: 4956987
    Abstract: A high speed rotary cutter includes a toothed counterwheel which has plural radial slots extending in the axial directions. First cutting blades are slidably received in the radial slots, each of which has a first cutting edge on its outer end. The first cutting edge is inclined to the line which is perpendicular to the advancing direction of the continuous corrugated strip. The movement of the first cutting blade between a projected and restored position thereof is controlled by a fixed cam which is located inside of the toothed counterwheel. The rotary cutter also includes a second cutting blade which has a second cutting edge on its outer end and is aligned to the first cutting blade so that the continuous corrugated strip is sheared at the crossing point of the first and second cutting blades. The first and the second cutting blades are biased to be engaged with each other for cutting the fin.
    Type: Grant
    Filed: July 25, 1989
    Date of Patent: September 18, 1990
    Assignee: Nippondenso Co., Ltd.
    Inventors: Yoshihiro Hara, Takatoshi Iwase
  • Patent number: 4858457
    Abstract: A machine for making concrete reinforcing bars, known as rebars, from wire stock having a round cross section. A preform roller station cold works the round cross section of the wire stock into the shape of a polygon. A first form roller station cold works the polygonal cross section into a cross section having a central core and radial fin members extending therefrom. A second form roller station further reduces the diameter of the central core, and further increases the radial extent of the fin members. A third form roller station reduces the core still further, and again increases the radial extent of the fins, imparts shoulder members that provide an anti-longitudinal slip function at preselected intervals along the extent of the rebar, and roughens the rebar.
    Type: Grant
    Filed: May 12, 1988
    Date of Patent: August 22, 1989
    Inventor: Frank R. Potucek
  • Patent number: 4779437
    Abstract: The method and apparatus described herein produce a tubular shelf post having a plurality of spaced apart annular grooves along the length thereof and stamped indicia on the outside surface of the post at various groove locations. A grooving and stamping roller is utilized to simultaneously groove and stamp the post with indicia, such roller being substantially larger in diameter relative to the post whereby a single roller revolution is sufficient to groove and stamp the post thereby eliminating double stampings.
    Type: Grant
    Filed: July 30, 1987
    Date of Patent: October 25, 1988
    Assignee: Metal Masters Foodservice Equipment
    Inventor: Michael Kubiak
  • Patent number: 4735116
    Abstract: A rolling mill has a pair of cooperating work rolls with first and second chock pairs associated with each work roll. At least one work roll is rocked in a direction generally perpendicular to the longitudinal axis of the work roll during operation of the rolling mill to enhance shear rolling and create regions of irregular thickness in the workpiece. This reduces friction between the work rolls and the workpiece in subsequent rolling thereby permitting greater lateral spread of the workpiece. The rocking may be effected in a generally vertical direction by a pair of cylinders secured to a pair of chocks or may be effected in a generally horizontal direction which may be that of the path of flow of the workpiece through the rolling mill by pairs of cylinders associated with each work roll or may involve rocking in both directions.
    Type: Grant
    Filed: May 6, 1986
    Date of Patent: April 5, 1988
    Assignees: United Engineering Rolling Mills, Inc., International Rolling Mill Consultants, Inc.
    Inventor: Vladimir B. Ginzburg
  • Patent number: 4193282
    Abstract: A rolling machine for reducing the cross-sectional dimensions of an elongate workpiece, such as a steel billet, has two pairs of alternately operating rolls, each of which is journalled in an individual roll carrier. Each carrier is rotated about a carrier axis which is inclined at an angle of about 45.degree. to the axis of rotation of the roll journalled in the carrier. The carrier axes form the sides of a square around the passline which is normal to the plane in which the carrier axes are located. As the carriers rotate the two pairs of rolls alternately sweep over the workpiece and intermittently contact and reduce the workpiece in directions which are mutually at right angles. To avoid the formation of sharp edges to the rolled workpiece, either each roll is collared to enclose a workpiece edge, or each carrier additionally carries an edger roll which rounds that edge.
    Type: Grant
    Filed: July 3, 1978
    Date of Patent: March 18, 1980
    Assignee: Hill Engineering Company Limited
    Inventor: Alexander I. Wilson
  • Patent number: 4034587
    Abstract: The invention is concerned with a reinforcing rod for concrete and a rolling tool for making the rod. The rod has several cold rolled serpentine shaped ribs distributed around its periphery and extending generally in the axial direction.
    Type: Grant
    Filed: June 17, 1975
    Date of Patent: July 12, 1977
    Inventor: Wilhelm Schwarz