Patents by Inventor Douglas C. Finn

Douglas C. Finn 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: 5237720
    Abstract: A liquid extraction surface cleaning apparatus having a cleaning solution tank and a recovery tank held in a floor-supported carriage with the tanks having sidewalls extending above the carriage. A housing which contains a suction fan, a suction chamber, a suction inlet connecting with the chamber and a water and air separator sits on top of the tanks with the suction chamber over the recovery tank. The housing is latched to the carriage capturing the tanks. A cleaning solution dispensing means extracts cleaning solution from the solution tank. Each tank has a pivotally connected handle and the cleaning solution tank has a chemical dispensing tray integral to its handle.
    Type: Grant
    Filed: April 15, 1992
    Date of Patent: August 24, 1993
    Assignee: Bissell Inc.
    Inventors: Michael R. Blase, Giovanni Pino, Kenneth E. Gibbs, Douglas C. Finn
  • Patent number: 5146647
    Abstract: A liquid extraction surface cleaning apparatus having a cleaning solution tank and a recovery tank held in a floor-supported carriage with the tanks having sidewalls extending above the carriage. A housing which contains a suction fan, a suction chamber, a suction inlet connecting with the chamber and a water and air separator sits on top of the tanks with the suction chamber over the recovery tank. The housing is latched to the carriage capturing the tanks. A cleaning solution dispensing means extracts cleaning solution from the solution tank. Each tank has a pivotally connected handle and the cleaning solution tank has a chemical dispensing tray integral to its handle.
    Type: Grant
    Filed: May 4, 1990
    Date of Patent: September 15, 1992
    Assignee: Bissell Inc.
    Inventors: Michael R. Blase, Giovanni Pino, Kenneth E. Gibbs, Douglas C. Finn