Patents by Inventor Charles Fletcher Stewart

Charles Fletcher Stewart 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).

  • Apparatus and method for spliting a tow of carbon fiber filaments
    Patent number: 12006180
    Abstract: An apparatus and method for splitting a high filament count carbon fiber tow into a set of tows with reduced filament counts. The apparatus is comprised of an electrolyte bath assembly and a splitting assembly comprised of at least one blade. The preferred embodiment of the blades being Polytetrafluoroethylene (PTFE). The splitting assembly being positioned within the electrolyte bath or adjacent to the exit of the electrolyte bath.
    Type: Grant
    Filed: August 19, 2022
    Date of Patent: June 11, 2024
    Inventor: Charles Fletcher Stewart
  • APPARATUS AND METHOD FOR SPLITING A TOW OF CARBON FIBER FILAMENTS
    Publication number: 20230211974
    Abstract: An apparatus and method for splitting a high filament count carbon fiber tow into a set of tows with reduced filament counts. The apparatus is comprised of an electrolyte bath assembly and a splitting assembly comprised of at least one blade. The preferred embodiment of the blades being Polytetrafluoroethylene (PTFE). The splitting assembly being positioned within the electrolyte bath or adjacent to the exit of the electrolyte bath.
    Type: Application
    Filed: August 19, 2022
    Publication date: July 6, 2023
    Inventor: Charles Fletcher Stewart