Patents by Inventor Stephan M. Vetter

Stephan M. Vetter 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).

  • Centrifugal impeller with simplified manufacture
    Patent number: 5588803
    Abstract: A centrifugal blower impeller has wide, backwardly inclined blades of the type that require the addition of a locking ring in order to stiffen and stabilize the blade tips. The blade tips and locking ring incorporate special notches and interfitting channels that allow the locking ring to be simply pushed down and onto the blade tips, self retaining without the necessity of any extra assembly steps like staking or welding. The side edges of the blade tip notches wedge against the walls of the channels if the blade tip attempts to bend in either direction.
    Type: Grant
    Filed: December 1, 1995
    Date of Patent: December 31, 1996
    Assignee: General Motors Corporation
    Inventors: Stephan M. Vetter, Mark J. Parisi