Patents by Inventor Thomas K. Christiansen

Thomas K. Christiansen 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).

  • Patent number: 5901430
    Abstract: A gimbal and corresponding head suspension assembly including a planar flexure platform having integral static attitude compensation, nominal angle adjustment, and load point etched or etched-formed raised features. The head suspension assembly can also include a load point cover with etched or etched-formed load point features. The etched features are manufactured by masking a pivot point at about the intersection of the roll axis and the pitch axis, thus leaving a raised protuberance having either a pivot point or a load point feature. The process of manufacturing etched-formed features includes etching protuberances and slots. A punch press is then applied to the protuberances. The slots help control the formation of raised domes and provide additional static compensation and nominal angle adjustment pivoting clearance.
    Type: Grant
    Filed: September 3, 1996
    Date of Patent: May 11, 1999
    Assignee: Hutchinson Technology Incorporated
    Inventors: David A. Ziegler, Ryan A. Jurgenson, Brent D. Lien, Thomas K. Christiansen, James Roger Mahoney