Patents by Inventor Frank F. Federighi

Frank F. Federighi 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).

  • Static material mixing apparatus
    Patent number: 4511258
    Abstract: A motionless mixing device includes a conduit having a mixing element therein which is formed by deforming flat stock material. The mixing element includes two substantially identical segments or halves that each having a sinuous cross-section between opposite ends and are interconnected along the center of the conduit with the two segments being axially staggered with respect to each other.
    Type: Grant
    Filed: March 25, 1983
    Date of Patent: April 16, 1985
    Assignee: Koflo Corporation
    Inventors: James L. Federighi, Frank F. Federighi