Patents by Inventor Theodore E. Thygesen

Theodore E. Thygesen 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: 5305787
    Abstract: An eccentric disk valve has return springs and indicators located outside of the valve housing. The valve disk is directly seated on the housing and the valve seat of the housing is described as a section of a right circular cone whose central axis is aligned with the axis of flow through the valve housing.
    Type: Grant
    Filed: February 3, 1993
    Date of Patent: April 26, 1994
    Assignee: C & S Valve Company
    Inventor: Theodore E. Thygesen