Patents by Inventor Aloysius J. Hoogenboom

Aloysius J. Hoogenboom 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).

  • Flow drill for the provision of holes in sheet material
    Patent number: 4454741
    Abstract: A flow drill having a cross sectional contour defined by a complex harmonic curve symmetrical in the rotation direction permitting reverse of drill rotation.
    Type: Grant
    Filed: February 19, 1982
    Date of Patent: June 19, 1984
    Assignee: Flowdrill B.V.
    Inventor: Aloysius J. Hoogenboom