Patents by Inventor Arie Oostwouder

Arie Oostwouder 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).

  • Weld seam opening regulator for cylindrical tank building process
    Patent number: 6266862
    Abstract: A weld seam opening regulator for use in constricting cylindrical structures, including a frame, first and second wheels for riding on a first edge of a band of metal, a third wheel for riding on a first edge of a cylindrical portion of the structure, and a fourth wheel for riding on an inner surface of the cylindrical portion and maintaining a minimum weld spacing between the band and cylinder. Also, an adjustable bottom roller rides on a second edge of the metal band urges the metal band toward the cylindrical portion of the structure.
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: July 31, 2001
    Assignee: Chicago Bridge & Iron Company
    Inventors: Arie Oostwouder, Jon Piet Oostwouder