Patents by Inventor Ray E. Davis

Ray E. Davis 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).

  • Apparatus and method for detecting inhomogeneities in semi-plastic substances through ultrasound
    Patent number: 5062299
    Abstract: A method and apparatus is reported for detecting inhomogeneities in semi-plastic substances such as toilet bars containing soap. An ultrasound probe is utilized to test the substance at an exit orifice of an extruder. Best results are obtained by utilizing a ceramic ultrasonic probe, rectangular in shape including a transducer having a concave curvature on a lower surface thereof. The probe includes a theromplastic delay material. Ultrasonic waves directed through the probe preferably have a frequency between 1 and 2.25 MHz. Wedging of the extruded substance is also useful to improve contact with the probe as it passes through the extruder exit orifice.
    Type: Grant
    Filed: January 5, 1990
    Date of Patent: November 5, 1991
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Ray E. Davis, Dana L. Duncan, Samir W. Habboosh, James R. Hall, Dennis L. Nudelman, Michael J. Westkamper