Patents by Inventor John M. Stropki, Jr.

John M. Stropki, 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).

  • Extension lift truck modification
    Patent number: 7339134
    Abstract: An apparatus for welding, including a lift mechanism for lifting a personnel platform attached to an end of the lift mechanism, a drive system for moving the apparatus, where the drive system includes a DC power source, a set of controls mounted on the platform for controlling the drive system and the lift mechanism, and an electric arc welding system for creating a DC welding arc between an electrode and a workpiece, where the welding system is mounted on the personnel platform and powered by the DC power source.
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: March 4, 2008
    Assignee: Lincoln Global, Inc.
    Inventors: John M. Stropki, Jr., William T. Matthews