Patents by Inventor Denzil S. Roberts

Denzil S. Roberts 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).

  • Method and apparatus for improving the washing ability of wash water in a washing machine
    Patent number: 5794290
    Abstract: A washing method performed in a washing machine having a wash basket for containing wash water and a wash load includes the step of attaching a tile 10 of a ceramic material to the inside of the wash basket 12 so that the tile 10 is exposed to the wash water in the wash basket 12. A laundry tile 10 of ceramic material for use in the method is provided. It comprises a front side 14 and a rear side 18, wherein the front side 14 is at least partially unglazed. In one embodiment attachment strips 20,22 are provided for attaching the tile 10 by its rear side 18 to the inside of the wash basket 12 of a washing machine.
    Type: Grant
    Filed: March 4, 1997
    Date of Patent: August 18, 1998
    Inventor: Denzil S. Roberts