Patents by Inventor Kai Thorsten Langen

Kai Thorsten Langen 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: 9351620
    Abstract: A vacuum cleaner is provided with a dirt collection container and a suction head which can be placed on the dirt collection container, wherein the suction head has at least one suction unit which is in flow communication with the dirt collection container via a suction duct and a filter device and with at least one exhaust air opening via at least one exhaust air duct. To provide high suction capacity, a compact construction, and relatively little generation of noise during operation, the suction head has two suction units arranged next to one another, positioned in a vertical direction at the same level as the filter device and surrounded by a common exhaust air chamber, wherein the exhaust air chamber is in flow communication with exhaust air openings via a first and a second exhaust air duct and the filter device is arranged between the two exhaust air ducts.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: May 31, 2016
    Assignee: Alfred Kärcher GmbH & Co. KG
    Inventors: Jürgen Frank, Kai Thorsten Langen, Maic Hensel
  • Publication number: 20130247328
    Abstract: A vacuum cleaner is provided with a dirt collection container and a suction head which can be placed on the dirt collection container, wherein the suction head has at least one suction unit which is in flow communication with the dirt collection container via a suction duct and a filter device and with at least one exhaust air opening via at least one exhaust air duct. To provide high suction capacity, a compact construction, and relatively little generation of noise during operation, the suction head has two suction units arranged next to one another, positioned in a vertical direction at the same level as the filter device and surrounded by a common exhaust air chamber, wherein the exhaust air chamber is in flow communication with exhaust air openings via a first and a second exhaust air duct and the filter device is arranged between the two exhaust air ducts.
    Type: Application
    Filed: May 15, 2013
    Publication date: September 26, 2013
    Applicant: Alfred Kärcher GmbH & Co. KG
    Inventors: Jürgen Frank, Kai Thorsten Langen, Maic Hensel