Patents by Inventor Melvin W. Wells

Melvin W. Wells 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).

  • Process and apparatus for drying and classifying particulate granulate material
    Patent number: 4619052
    Abstract: A direct heat drying and classifying system for the continuous drying of moist particulate granulate material in a mixer by agitating in a hot air flow between stirring blades and a rotary screen with oversized particles of material being removed, hot air being recycled and moisture removed from the recycled air.
    Type: Grant
    Filed: June 17, 1985
    Date of Patent: October 28, 1986
    Assignee: Dresser Industries, Inc.
    Inventors: Larry E. Osburn, Melvin W. Wells