Patents by Inventor Carl R. Shervin

Carl R. Shervin 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 of determining blend time in stirred tanks
    Patent number: 5304002
    Abstract: Blend times of liquids are determined by measuring the rate of change in dielectric loss of stirred liquid media. The blend times for partial or complete mixing may be determined by this method, for example, mixing is essentially complete when the dielectric loss becomes constant. Tracer materials may be added to liquid mixtures to alter dielectric properties so that changes in the dielectric loss are readily measurable. This method may also be used to determine the blend times for dissolution and mixing of solid or gaseous materials with liquids.
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: April 19, 1994
    Assignee: Rohm and Haas Company
    Inventor: Carl R. Shervin