Patents Represented by Attorney Jeff Rothenburg

Find this attorney in the Justia Lawyer Directory

  • Drill adjusting tool
    Patent number: 4412462
    Abstract: The disclosure describes a core drill adjusting tool formed of a base plate of a predetermined size and thickness with a plurality of recesses of different diameters for testing a core drill and a frustum affixed thereto over which the cutting surfaces can be spread, an amount indicated by the testing recesses, by applying the cutting surfaces forcefully over the frustum.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: November 1, 1983
    Assignee: The Singer Company
    Inventor: Hubert P. McGavin