Patents by Inventor Curtis J. Beck

Curtis J. Beck 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 and apparatus for welding with CV control
    Patent number: 6909067
    Abstract: A method and apparatus for welding is disclosed. The output is preferably a cyclical CV MIG output, and each cycle is divided into segments. An output parameter is sampled a plurality of times within one or more of the segments. The CV output is controlled within the at least one segment in response to the sampling. The parameter is output power, a resistance of the load, an output current, an output voltage, or functions thereof in various embodiments. The control loop is preferably a PI or PID loop. The loop may be applied only within a window. The set point may be taught or fixed. The system can be used to weld with a controlled arc length.
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: June 21, 2005
    Assignee: Illinois Tool Works Inc.
    Inventors: Robert R. Davidson, James Uecker, Todd Holverson, David G. Almy, Curtis J. Beck