Patents by Inventor Herman L. Huber

Herman L. Huber 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).

  • Reversible fan
    Patent number: 4140435
    Abstract: A fan, with reversible blades, having a hub receiving the stem of the blades and an inner retaining ring, which has outwardly extending projections, supported concentric with the hub. A helical spring is received in, and actually extends into, a blind hole in each stem, and the inner end of the spring rests on the retaining ring at the projection urging the blades outward.
    Type: Grant
    Filed: May 26, 1977
    Date of Patent: February 20, 1979
    Inventor: Herman L. Huber