Patents by Inventor Thomas Krewenka

Thomas Krewenka 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).

  • Closed loop control of continuous seam resistance heated forge welding cylinders
    Patent number: 4447699
    Abstract: A signal emitted from a transducer responsive to the relative power applied during a welding process is enhanced electronically and mathematically to be of use in controlling welder operating parameters and/or in rejecting defective welds. Electronically the signal refined to minimize unnecessary noise in the signal and mathematically the signal is modified and analyzed against a standard. In a high speed welding operation automatic means are necessary to assure weld quality and control welder operation since the rapidity with which the welding takes place is too fast for manual readjustment.
    Type: Grant
    Filed: November 5, 1982
    Date of Patent: May 8, 1984
    Assignee: American Can Company
    Inventors: Vance B. Gold, Edward F. Kubacki, Thomas Krewenka
  • Closed loop control of continuous seam resistance heated forge welding cylinders
    Patent number: 4376884
    Abstract: A signal emitted from a transducer responsive to the relative power applied during a welding process is enhanced electronically and mathematically to be of use in controlling welder operating parameters and/or in rejecting defective welds. Electronically the signal refined to minimize unnecessary noise in the signal and mathematically the signal is modified and analyzed against a standard. In a high speed welding operation automatic means are necessary to assure weld quality and control welder operation since the rapidity with which the welding takes place is too fast for manual readjustment.
    Type: Grant
    Filed: July 30, 1980
    Date of Patent: March 15, 1983
    Assignee: American Can Company
    Inventors: Vance B. Gold, Edward F. Kubacki, Thomas Krewenka