Patents Assigned to Karl Singer
  • Hand-held burr remover for conduit and pipe
    Patent number: 4274770
    Abstract: A tool for deburring conduit and other piping is described. The tool is cylindrical with a stepped bore, having cutting blades mounted on each landing. Each succeeding bore is of a diameter that corresponds to a standard size of conduit. When the leading edges of a length of conduit is inserted to make contact with the cutting blades and rotated, the burrs are removed.
    Type: Grant
    Filed: November 9, 1979
    Date of Patent: June 23, 1981
    Assignees: Karl Singer, Wagner & Aubel, Ltd.
    Inventor: Karl Singer