Patents by Inventor Frank M. Dragolich, JR.

Frank M. Dragolich, JR. 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).

  • Method of arc welding root pass
    Patent number: 8610031
    Abstract: A method for root pass welding steel plate and pipe is provided that uses pulse arc welding having a current pulse waveform exhibiting a low constant background current and fixed frequency. The welding process may be performed without a backer or backing material.
    Type: Grant
    Filed: November 11, 2009
    Date of Patent: December 17, 2013
    Assignee: Lincoln Global, Inc.
    Inventors: Steven R. Peters, Frank M. Dragolich, Jr., David Barton
  • METHOD OF ARC WELDING ROOT PASS
    Publication number: 20110108527
    Abstract: A method for root pass welding steel plate and pipe is provided that uses pulse arc welding having a current pulse waveform exhibiting a low constant background current and fixed frequency. The welding process may be performed without a backer or backing material.
    Type: Application
    Filed: November 11, 2009
    Publication date: May 12, 2011
    Applicant: LINCOLN GLOBAL, INC.
    Inventors: Steven R. Peters, Frank M. Dragolich, JR., David Barton