With Manipulation Of Tool Protective Strip (e.g., Backing Strip) Patents (Class 83/31)
  • Patent number: 8960178
    Abstract: A cutting chain for a hand-operated implement for cutting metal and mineral materials such as a stone cutter has central connecting links which are connected to one another by lateral connecting links. The central connecting links comprise first central connecting links which each have a drive tooth. The cutting chain has two central connecting links with drive teeth shaped differently to the drive teeth on the first central connecting links; or located a different distance from the leading drive teeth; or having no drive teeth. A hand-operated implement for cutting mineral materials has a drive motor which drives the cutting chain around a guide bar by a drive sprocket. The cutting chain is guided round part of the circumference of the drive sprocket and round a nose sprocket on the guide bar. The drive sprocket or nose sprocket have different first and second areas matched to the cutting chain.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: February 24, 2015
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Jochen Buchholtz, Matthias Schulz, Helmut Zimmermann
  • Publication number: 20080011134
    Abstract: A sawing strip for fixing a substantially cylindrical workpiece when cutting off slices from this workpiece with a wire saw has a first face, which is concavely curved perpendicular to its longitudinal direction for connecting to the workpiece, a second face opposite the first face for connecting to a mounting plate, and two side faces which connect the first face and the second face, two edges of the sawing strip at which the side faces meet the first face at a distance a from each other, an imaginary line on the first face marking its minimum distance d from the second face, the side faces being at a distance b, measured at the height of the line and perpendicular to the distance d, wherein the distance b is less than the distance a. The sawing strip is useful for decreasing waviness of wafers cut from a cylindrical workpiece using the sawing strip.
    Type: Application
    Filed: July 6, 2007
    Publication date: January 17, 2008
    Applicant: SILTRONIC AG
    Inventor: Peter Wiesner
  • Patent number: 6315852
    Abstract: The invention concerns a process for the production of osteosynthesis plates with a varying thickness to whatever degree. The plates are manufactured by a metal cutting process carried out on a composite structure made by a layer of the material which will form the osteosynthesis plate, bound through a layer of adhesive to a supporting layer with high thermal conductivity and mechanical strength. When the cutting process terminates, the osteosynthesis plate is separated from the supporting layer by heating the composite structure until the adhesive melts or by using a thinner suitable for the adopted adhesive.
    Type: Grant
    Filed: February 26, 1999
    Date of Patent: November 13, 2001
    Inventors: Anna Magrini, Maurizio Carta
  • Patent number: 6063228
    Abstract: An apparatus for sticking a film to a lead frame has a punch moving up and down for punching a film, a die for placing the film to be punched, and a heating plate for heating a lead frame. A punched film with a predetermined shape is applied on the lead frame and thermally compressed and adhesively attached on a lead portion of the lead frame. The die is additionally provided with a buffer layer on the top plane of the die for relaxing compressing stress but increasing tensile stress put to the film at the punching step so that a punched film is prevented from producing cracks on the cutting end thereof.
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: May 16, 2000
    Assignee: Hitachi Cable, Ltd.
    Inventors: Toshi Sasaki, Teruyuki Watahiki, Takaharu Yonemoto
  • Patent number: 5458717
    Abstract: A method of shearing a thin metal sheet having a thickness of approximately 0.1 mm or less so as to be separated into a product and scrap by a pair of dies. A chamfer or a round having a size of approximately from 5 to 10 times greater than the thickness of the thin metal sheet is arranged at the lip of a first die which presses one portion of the thin metal sheet which is to be scrap. A chamfer or a round is not substantially arranged at the lip of a second die which presses the other portion of the thin metal sheet which is to be a product. A backing material and the thin metal sheet are overlapped so as to be a laminate. The backing material has a thickness of approximately 2 times or more greater than that of the thin metal sheet and is formed of a flexible material having a very small elongation and is soft enough not to substantially prevent the thin metal sheet from being sheared, such as, for example, paper.
    Type: Grant
    Filed: December 22, 1993
    Date of Patent: October 17, 1995
    Assignee: Nippondenso Co., Ltd.
    Inventor: Mikiya Kurita
  • Patent number: 4704928
    Abstract: A device for aligning and cutting lengths of terrycloth along the woof thread comprises two aligning ledges capable of movement relative to one another that can be lowered into the pileless rows of the length of material. The aligning ledges are connected each with one of two diagonally opposite joints of a parallelogram frame. On the two intervening joints is mounted a cutting device that operates transverse to the direction of feed of the length of material with a cutting plane that is always located exactly in the middle between the two aligning ledges.
    Type: Grant
    Filed: September 3, 1986
    Date of Patent: November 10, 1987
    Assignee: Pfaff Industriemaschinen GmbH
    Inventor: Conrad Arbter
  • Patent number: 4574445
    Abstract: Nozzles are formed in a plate for an ink-jet printer by holding a metal foil tightly against the side of the plate from which the nozzle is to protrude, and then pressing and punching through the plate and the metal foil together, through an aperture of a pressing die into a cushion of a hard elastic material such as lead. The foil is made of an isotropic material which is harder than that of the nozzle plate, and is preferably an amorphous or microcrystalline metal.
    Type: Grant
    Filed: July 23, 1984
    Date of Patent: March 11, 1986
    Assignee: U.S. Philips Corporation
    Inventors: Horst Bentin, Michael Doring, Horst Kronenberg, Werner Jeglinski
  • Patent number: 4543862
    Abstract: A stationary steel rule cutting die for cutting a fixed pattern in each of a plurality of stacked compressible material layers according to the shape of the rule die including a vacuum system for reducing the stack height of the compressible material layers prior to cutting.
    Type: Grant
    Filed: March 19, 1984
    Date of Patent: October 1, 1985
    Assignee: Ontario Die Company Limited
    Inventors: Martin M. Levene, William W. Lessard
  • Patent number: 4060017
    Abstract: A method for cutting lithium metal into a plurality of pieces, and a device for accomplishing the method, are disclosed, comprising the steps of positioning a quantity of lithium metal at a predetermined position between an anvil means and a cutting means which are positioned in operating relationship with each other. A thin flexible film, preferably a plastic, is interposed between the blade and the lithium such that when the blade is forced against the anvil with sufficient force to cut the lithium, the film prevents contact of the blade with the lithium. Indexing of the lithium and the film after each cut permits repetitive cutting to provide a plurality of pieces from the lithium metal stock.
    Type: Grant
    Filed: February 18, 1977
    Date of Patent: November 29, 1977
    Assignee: Honeywell Inc.
    Inventor: John R. Backlund