Patents by Inventor Daniel W. Brandt

Daniel W. Brandt 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).

  • Classification of coating particle size
    Patent number: 6923865
    Abstract: Techniques for precisely controlling the size of particles in a coating solution delivered to a coating apparatus involve continuous classification of coating particle size using a tangential flow filter assembly. The techniques may be particularly useful in the preparation of coating dispersions for manufacture of magnetic recording media. A classification technique makes use of a tangential flow filter assembly that permits delivery of coating particles below a maximum size threshold to a coating path. The filter assembly may be disposed in a circulation path that includes one or more processing devices to reduce the size of coating particles carried by a coating solution. The filter assembly enables coating particles above the maximum size threshold to be recirculated through the circulation path and subjected to repeated processing to reduce particle size to a desired size range.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: August 2, 2005
    Assignee: Imation Corp.
    Inventors: Mark Serafin, Stanley R. Ellis, Leroy C. Erickson, Scott A. Walker, Daniel W. Brandt
  • Classification of coating particle size
    Publication number: 20030185974
    Abstract: Techniques for precisely controlling the size of particles in a coating solution delivered to a coating apparatus involve continuous classification of coating particle size using a tangential flow filter assembly. The techniques may be particularly useful in the preparation of coating dispersions for manufacture of magnetic recording media. A classification technique makes use of a tangential flow filter assembly that permits delivery of coating particles below a maximum size threshold to a coating path. The filter assembly may be disposed in a circulation path that includes one or more processing devices to reduce the size of coating particles carried by a coating solution. The filter assembly enables coating particles above the maximum size threshold to be recirculated through the circulation path and subjected to repeated processing to reduce particle size to a desired size range.
    Type: Application
    Filed: March 29, 2002
    Publication date: October 2, 2003
    Inventors: Mark Serafin, Stanley R. Ellis, Leroy C. Erickson, Scott A. Walker, Daniel W. Brandt