Patents by Inventor Alexander Rubbe

Alexander Rubbe 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).

  • Motor pump unit for a high-pressure cleaning appliance, and high-pressure cleaning appliance
    Patent number: 10047767
    Abstract: A motor pump unit for a high-pressure cleaning appliance is provided, in which the cleaning liquid conveyed by the pump assembly is used for cooling the motor, comprising a motor housing which surrounds the motor, and a cooling channel which surrounds the motor and through which the cleaning liquid can flow for heat dissipation. To provide a motor pump unit having a level of electrical safety which is higher than that of a conventional motor pump unit, the cooling channel surround the motor housing, and the motor pump unit comprise at least one thermally conductive spacer element by way of which the cooling channel is spaced from the motor housing. A high-pressure cleaning appliance is also provided.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: August 14, 2018
    Assignee: Alfred Kärcher GmbH & Co. KG
    Inventors: Sven Dirnberger, Timo Spengler, Rudi Bareiter, Markus Fischer, Juergen Kloepfer, Alexander Rubbe
  • MOTOR PUMP UNIT FOR A HIGH-PRESSURE CLEANING APPLIANCE, AND HIGH-PRESSURE CLEANING APPLIANCE
    Publication number: 20130263899
    Abstract: A motor pump unit for a high-pressure cleaning appliance is provided, in which the cleaning liquid conveyed by the pump assembly is used for cooling the motor, comprising a motor housing which surrounds the motor, and a cooling channel which surrounds the motor and through which the cleaning liquid can flow for heat dissipation. To provide a motor pump unit having a level of electrical safety which is higher than that of a conventional motor pump unit, the cooling channel surround the motor housing, and the motor pump unit comprise at least one thermally conductive spacer element by way of which the cooling channel is spaced from the motor housing. A high-pressure cleaning appliance is also provided.
    Type: Application
    Filed: June 4, 2013
    Publication date: October 10, 2013
    Inventors: Sven Dirnberger, Timo Spengler, Rudi Bareiter, Markus Fischer, Juergen Kloepfer, Alexander Rubbe