Patents by Inventor Eugen Ernst

Eugen Ernst 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).

  • Cleaning device
    Patent number: 6243913
    Abstract: In order to further develop a cleaning device comprising a cleaning liquid tank and a dirty liquid tank as well as a pump in flow communication with the cleaning liquid tank for spraying a surface to be cleaned and a suction unit for receiving the sprayed cleaning liquid and transferring it into the dirty liquid tank in such a manner that it is more service-friendly and less noisy it is suggested that the pump and the suction unit be held in a separate housing which can be introduced into a frame of the cleaning device in the form of an insert.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: June 12, 2001
    Assignee: Alfred Karcher GmbH & Co.
    Inventors: Juergen Frank, Eugen Ernst, Alfred Losansky