Patents by Inventor Stephen V. McGrath

Stephen V. McGrath 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).

  • High speed flywheel
    Patent number: 5012694
    Abstract: A flywheel for operation at high speeds utilizes two or more ringlike coments arranged in a spaced concentric relationship for rotation about an axis and an expansion device interposed between the components for accommodating radial growth of the components resulting from flywheel operation. The expansion device engages both of the ringlike components, and the structure of the expansion device ensures that it maintains its engagement with the components. In addition to its expansion-accommodating capacity, the expansion device also maintains flywheel stiffness during flywheel operation.
    Type: Grant
    Filed: January 29, 1990
    Date of Patent: May 7, 1991
    Assignee: The United States of America as represented by the Department of Energy
    Inventor: Stephen V. McGrath