Patents by Inventor Anna Duncan

Anna Duncan 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).

  • Publication number: 20070113595
    Abstract: The present invention relates to a washing machine (7) and pump (8) for a washing machine (7). The pump is driven by a brushless DC motor (38). The pump can be controlled to improve the operation of the washing machine. In one aspect the invention comprises a washing machine (7) with a variable speed pump (8) for pumping out wastewater, a controller (50) for controlling the speed of the pump and a sensor (10) for determining the flow-rate of water being pumped from the washing machine, wherein the controller (50) controls the speed of the pump to maintain the flow-rate at a desirable level.
    Type: Application
    Filed: November 6, 2006
    Publication date: May 24, 2007
    Inventors: JONATHAN HARWOOD, HUGH JOHNSON, GEOFFREY LEE, GREGORY HILL, ANNA DUNCAN, ADRIAN SARGEANT
  • Publication number: 20070101772
    Abstract: A laundry machine configured to supply a first amount of water to the wash tub wherein a wash plate can be oscillated such that clothes items directly above and in contact with the impeller are frictionally dragged in a oscillatory manner with the wash chamber while continuing to oscillate said wash plate, an additional supply of water is added to said wash tub such that as cloth items lost frictional engagement with the wash plate, the cloth items continue to move along an inverse toroidal rollover path at higher water levels.
    Type: Application
    Filed: September 7, 2006
    Publication date: May 10, 2007
    Inventors: Anna Duncan, Erin Hall, Geoffrey Walker, Gerald Duncan, Flavio Bernardino, Mary Zeitler, David Carr