Patents by Inventor David M. Leske

David M. Leske 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).

  • Pulsed arc welding
    Patent number: 4758707
    Abstract: A pulsed arc welding system includes a current pulse generating circuit and a background current generating circuit. The lowest arc voltage across the arc load is detected during a predetermined time period immediately preceeding the onset of each current pulse. The pulse repetition rate is controlled on the basis of this detected voltage so that the detected arc voltage becomes constant.
    Type: Grant
    Filed: June 4, 1987
    Date of Patent: July 19, 1988
    Assignees: Welding Industries of Australia Pty., Ltd., Commonwealth Scientific and Industrial Research Organization
    Inventors: Graeme J. Ogilvie, William K. Brougham, Gary L. Cheesman, David M. Leske