Patents by Inventor Petra Pfister

Petra Pfister 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).

  • Water-conducting household appliance having a rotatable component
    Patent number: 9309615
    Abstract: A water-conducting household appliance having a rotatable component, which is rotatably mounted on a stationary component of the household appliance by way of a bearing formed from a metallic material, and having a sealing element, by means of which the bearing is sealed off from a liquid chamber of the household appliance, wherein a contact surface of the sealing element is in contact with a contact surface of a shaft part which is connected to the moveable component and can be rotated relative to the sealing element, and slides on the contact surface of the shaft part. A pump is on at least one of the contact surfaces, by means of which liquid can be conveyed out of an intermediate space embodied between the respective contact surfaces in the direction of the liquid chamber when rotating the rotatable component.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: April 12, 2016
    Assignee: BSH Hausgeräte GmbH
    Inventors: Jürgen Heβ, Petra Pfister, Vladimir Proseanic, Svetlana Visnepolschi
  • WATER-CONDUCTING HOUSEHOLD APPLIANCE HAVING A ROTATABLE COMPONENT
    Publication number: 20130340486
    Abstract: A water-conducting household appliance having a rotatable component, which is rotatably mounted on a stationary component of the household appliance by way of a bearing formed from a metallic material, and having a sealing element, by means of which the bearing is sealed off from a liquid chamber of the household appliance, wherein a contact surface of the sealing element is in contact with a contact surface of a shaft part which is connected to the moveable component and can be rotated relative to the sealing element, and slides on the contact surface of the shaft part. A pump is on at least one of the contact surfaces, by means of which liquid can be conveyed out of an intermediate space embodied between the respective contact surfaces in the direction of the liquid chamber when rotating the rotatable component.
    Type: Application
    Filed: June 26, 2012
    Publication date: December 26, 2013
    Applicant: BSH BOSCH UND SIEMENS HAUSGERÄTE GMBH
    Inventors: Jürgen Hess, Petra Pfister, Vladimir Proseanic, Svetlana Visnepolschi