Patents by Inventor Alfred Mitchell

Alfred Mitchell 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: 4178654
    Abstract: The invention relates to floor polishing machines comprising a rotary brush drive means for the brush and means, such as a fan, for producing an updraught around the periphery of the brush to assist in removing particulate matter from a floor being polished.
    Type: Grant
    Filed: October 26, 1977
    Date of Patent: December 18, 1979
    Assignee: Alfred Mitchell
    Inventor: Alfred Mitchell