Patents by Inventor Thomas J. Bernadic

Thomas J. Bernadic has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Scalloped polygonal cutting insert
    Patent number: 4705434
    Abstract: In polygonal cutting insert, each of the respective parallel faces of the insert include a single chip breaker scallop positioned at each corner wherein the scallop is formed as segments of conical frustum having a particular orientation.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: November 10, 1987
    Assignee: GTE Valenite
    Inventors: John H. Patterson, Thomas J. Bernadic
  • Roughing/finishing threader
    Patent number: 4669925
    Abstract: Roughing threader cutting tool for Buttress pipe thread employing three scallops with arcuate chip breaking back walls for leading transvese and side flank cutting edges solving problem of excessive time consuming multiple passes and coil string chips and quadrupling production rate compared to cutting complete thread with finish threader.
    Type: Grant
    Filed: January 31, 1986
    Date of Patent: June 2, 1987
    Assignee: GTE Valeron Corporation
    Inventors: Tony M. Lowe, Thomas J. Bernadic
  • Chip control insert
    Patent number: 4626141
    Abstract: Chip control insert characterized by a chip control groove extending across polygon insert corners and along edge extending from corners with increasing width away from the cutting corner. The groove is formed with a radius extending below a narrow positive rake cutting edge land to a maximum depth tangent with the bottom of the groove.
    Type: Grant
    Filed: January 23, 1985
    Date of Patent: December 2, 1986
    Assignee: GTE Valeron Corporation
    Inventors: John Malaker, Thomas J. Bernadic