Patents by Inventor Charles M. Harbin

Charles M. Harbin 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).

  • Shoe cleaning machine
    Patent number: 4313238
    Abstract: A shoe cleaning machine having a housing (10,11) and a grid frame (12) within the housing, transversely spaced longitudinal channels (47) presenting flat co-planar upper surfaces, longitudinal rows of brush bristles (B) having curved sections projecting tangentially between said channels, said sections being detachably mounted on transversely extending bars (33) journaled in the housing and oscillatable by a linkage (54,55,56) driven by a motor (59).
    Type: Grant
    Filed: March 10, 1980
    Date of Patent: February 2, 1982
    Assignee: AMCS Corporation
    Inventor: Charles M. Harbin