Patents by Inventor Stellan Thoren

Stellan Thoren 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).

  • Sound damping devices
    Patent number: 4558296
    Abstract: A hollow sound damping plate is arranged between a transformer core and an internal limiting surface of a transformer tank filled with insulating fluid. At least one compressive-force transmitting spring member (8) is arranged between the front wall (6) and the rear wall (5).
    Type: Grant
    Filed: February 5, 1985
    Date of Patent: December 10, 1985
    Assignee: ASEA Aktiebolag
    Inventor: Stellan Thoren