Patents by Inventor Phillipa L. Elliott

Phillipa L. Elliott 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: 4631771
    Abstract: A clothes washing machine includes a container within which a spin tub is rotatably mounted, an agitator mounted within that spin tub, driving means including a reversible electric motor to drive the spin tub and agitator, and controls are provided to cause the spin tub to commence a spinning phase of the clothes washing cycle, to cause the spin tub and its contents to accelerate through the critical speed (lateral resonance speed) to a holding speed not greatly above that critical speed, and to cause that holding speed to be maintained for a sufficient length of time as to prevent or substantially reduce the creation of suds or foam caused by cleaning additives such as detergents in the washing liquid until conditions for suds forming have been substantially eliminated.
    Type: Grant
    Filed: February 26, 1985
    Date of Patent: December 30, 1986
    Assignee: Fisher & Paykel Limited
    Inventors: Iain A. Anderson, Christopher J. Gaelic, Phillipa L. Elliott