Patents by Inventor Albert S. Swanson

Albert S. Swanson 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).

  • Scrubbing machine with selective recycle
    Patent number: 4348783
    Abstract: A scrubbing machine is described which may be operated either in a single cycle scrubbing mode or in a recirculating scrubbing mode. The scrubbing machine includes a body structure which is supported on a plurality of wheels. The scrubber has a pair of tanks one of which is a collector tank and the other of which is a solution feeding tank. A conduit and a pump are provided for moving the solution from the collector tank to the feeding tank. The collector tank may include a filter structure including a flexible conduit and a filtering element.
    Type: Grant
    Filed: November 10, 1980
    Date of Patent: September 14, 1982
    Assignee: Tennant Company
    Inventors: Albert S. Swanson, Robert A. Geyer