Patents by Inventor Douglas E. McKanna

Douglas E. McKanna 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: 5287797
    Abstract: A brew basket is disclosed for use with conventional coffee makers of the type found in offices, hotels and restaurants. The brew basket is configured to receive ground coffee in the form of a compressed wafer and provides increased extraction of coffee solids from compressed coffee wafers and a significant reduction in extraction time. The basket has a relatively shallow profile and is dimensioned so that when the brew basket is mounted on the coffee maker, substantially the entire upper surface of the compressed wafer disposed in the brew basket is wetted by the hot water discharged from the spray head of the coffee maker. In addition the basket is dimensioned to maintain a water level in the brew basket sufficient to at least partially submerge the compressed wafer during extraction, to further increase extraction efficiency.
    Type: Grant
    Filed: February 3, 1993
    Date of Patent: February 22, 1994
    Assignee: Nestec S.A.
    Inventors: Shirdan J. Grykiewicz, Douglas E. McKanna, Dean F. Rushmore
  • Patent number: D341286
    Type: Grant
    Filed: February 18, 1992
    Date of Patent: November 16, 1993
    Assignee: Nestec S.A.
    Inventors: Shirdan J. Grykiewicz, Douglas E. McKanna, Dean F. Rushmore