Patents by Inventor Yingan Xia

Yingan Xia 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).

  • Fan impeller
    Patent number: 9810234
    Abstract: A fan impeller for the conveyance of a gaseous fluid includes several blades arranged with constant angular spacing around a rotation axis. At least one blade has a boundary zone and an inner zone, together with a bead extending between them along a curved path and/or the boundary zone is determined by a first blade surface and the inner zone is determined by a second blade surface, which are arranged with varying geometry.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: November 7, 2017
    Assignee: Punker GmbH
    Inventors: Henning Bähren, Christian Hornhardt, Matthias Wolf, Yingan Xia
  • Flow directing device for a cooking appliance
    Patent number: 9557066
    Abstract: A cooking appliance including an interior, a fan mechanism having at least one fan wheel in the interior, at least one first flow directing member for subdividing the interior into a pressure chamber that houses the fan wheel and a cooking chamber, in which the first flow directing member includes at least one suction port for sucking atmosphere from the cooking chamber into the pressure chamber when the fan wheel is in operation and at least one blow-off port for blowing atmosphere from the pressure chamber into the cooking chamber when the fan wheel is in operation; and at least one second flow directing member that is included with the fan mechanism in the area of the suction port of the first flow directing member in order to improve the flow from the cooking chamber into the pressure chamber by forcing an axial main flow H in the suction zone of the fan mechanism, where the second flow directing member performs a nozzle function, extends from the fan mechanism into the cooking chamber, and overlaps the e
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: January 31, 2017
    Assignee: Rational AG
    Inventors: Ernst Claussen, Joachim J. Hylla, Oliver Witt, Yingan Xia, Michael Herner, Thomas Schreiner, Robert Kurth, Leonhard Ring, Aldo Paintner
  • FAN IMPELLER
    Publication number: 20150071782
    Abstract: A fan impeller for the conveyance of a gaseous fluid includes several blades arranged with constant angular spacing around a rotation axis. At least one blade has a boundary zone and an inner zone, together with a bead extending between them along a curved path and/or the boundary zone is determined by a first blade surface and the inner zone is determined by a second blade surface, which are arranged with varying geometry.
    Type: Application
    Filed: September 10, 2014
    Publication date: March 12, 2015
    Inventors: Henning BÄHREN, Christian HORNHARDT, Matthias WOLF, Yingan XIA
  • FLOW DIRECTING DEVICE FOR A COOKING APPLIANCE
    Publication number: 20110253123
    Abstract: A cooking appliance including an interior, a fan mechanism having at least one fan wheel in the interior, at least one first flow directing member for subdividing the interior into a pressure chamber that houses the fan wheel and a cooking chamber, in which the first flow directing member includes at least one suction port for sucking atmosphere from the cooking chamber into the pressure chamber when the fan wheel is in operation and at least one blow-off port for blowing atmosphere from the pressure chamber into the cooking chamber when the fan wheel is in operation; and at least one second flow directing member that is included with the fan mechanism in the area of the suction port of the first flow directing member in order to improve the flow from the cooking chamber into the pressure chamber by forcing an axial main flow H in the suction zone of the fan mechanism, where the second flow directing member performs a nozzle function, extends from the fan mechanism into the cooking chamber, and overlaps the e
    Type: Application
    Filed: October 23, 2009
    Publication date: October 20, 2011
    Applicant: Rational AG
    Inventors: Ernst Claussen, Joachim J. Hylla, Oliver Witt, Yingan Xia, Michael Herner, Tomas Schreiner, Robert Kurth, Leonhard Ring, Aldo Paintner