Patents by Inventor Cornelis L. DeWit

Cornelis L. DeWit 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).

  • Discharge installation for a silo
    Patent number: 4645403
    Abstract: A discharge installation to be used in a silo for bulk material in powdered or granular condition comprising a central column of interspaced annular collar plates surrounding a central discharge chute, subsequent collar plates merging into each other forming a mainly helical path, a traveling scraper device being provided in the space between subsequent collar plates.
    Type: Grant
    Filed: May 1, 1985
    Date of Patent: February 24, 1987
    Inventor: Cornelis L. DeWit