Patents by Inventor Alfred Westermann

Alfred Westermann 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).

  • Saver sub for a steering tool
    Patent number: 6845826
    Abstract: According to one embodiment of the invention, a saver sub for a steering tool includes a main body having an external thread portion adapted to threadably couple to a box end of the steering tool and an internal thread portion adapted to threadably couple a drill bit thereto and a thread shoulder having an outside perimeter and an inside perimeter disposed around a perimeter of the main body. The thread shoulder includes a curved portion associated with the inside perimeter and a tapered portion extending from the curved portion to the outside perimeter and tapering toward the external thread portion.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: January 25, 2005
    Assignee: Noble Drilling Services Inc.
    Inventors: Dagobert Feld, Alfred Westermann