Patents by Inventor Roland Kamm

Roland Kamm 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).

  • Wiper device for hard surfaces, in particular a window wiper
    Patent number: 5497530
    Abstract: In order to reduce the energy consumption of the suction unit, on the one hand, and to improve the cleaning effect, on the other hand, of a wiper device for hard surfaces, in particular a window wiper, comprising a slit-shaped suction nozzle, on which a flexible wiper lip is arranged, which protrudes forwardly beyond the suction nozzle, it is suggested that the wiper lip be held on a wall of the suction nozzle and drawn against the opposite wall of the suction nozzle under the influence of a suction stream in the suction nozzle and thereby close the suction nozzle.
    Type: Grant
    Filed: March 25, 1994
    Date of Patent: March 12, 1996
    Assignee: Alfred Karcher GmbH & Co.
    Inventors: Roland Kamm, Eberbard Veit, Josef Schneider, Antonio De Filippo, Donald W. Murray, Michael C. Story, Carl S. Lammons