Patents by Inventor Steve J. Schaefer

Steve J. Schaefer 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).

  • Electrode for a plasma arc torch having an enhanced cooling configuration
    Patent number: 6403915
    Abstract: An electrode having a ribbed configuration providing a large surface area for cooling the electrode. The electrode includes an elongated electrode body having a first end and a second end. The electrode also includes a shoulder having an enlarged diameter body integral with the electrode body. The shoulder has an imperforate face toward the first end and at least one rib extending aft of the face towards the second end of the electrode body.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: June 11, 2002
    Assignee: Hypertherm, Inc.
    Inventors: David J. Cook, Charles A. Landry, Steve J. Schaefer