Patents by Inventor Franck ALEXANDRE

Franck ALEXANDRE 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).

  • System for coupling two shafts in rotation without play
    Patent number: 12655874
    Abstract: A system couples a driving shaft and a driven shaft in rotation and without play. The driving shaft includes a tubular end with at least one internal longitudinal groove receiving the driven shaft and having at its end a projecting cylindrical transverse pin configured to engage in the groove. A return spring for the pin urges the pin without play against a longitudinal edge of the groove. The spring includes a first helical section for fastening to the driven shaft and threaded by screwing through the pin. A second section of the spring bears on the pin, and a third elastic return section of the spring acts elastically on the second section.
    Type: Grant
    Filed: September 13, 2022
    Date of Patent: June 16, 2026
    Assignee: SAFRAN ELECTRONICS & DEFENSE
    Inventors: Bertrand Sevagen, Franck Alexandre, Etienne Merlet
  • SYSTEM FOR COUPLING TWO SHAFTS IN ROTATION WITHOUT PLAY
    Publication number: 20240376937
    Abstract: A system couples a driving shaft and a driven shaft in rotation and without play. The driving shaft includes a tubular end with at least one internal longitudinal groove receiving the driven shaft and having at its end a projecting cylindrical transverse pin configured to engage in the groove. A return spring for the pin urges the pin without play against a longitudinal edge of the groove. The spring includes a first helical section for fastening to the driven shaft and threaded by screwing through the pin. A second section of the spring bears on the pin, and a third elastic return section of the spring acts elastically on the second section.
    Type: Application
    Filed: September 13, 2022
    Publication date: November 14, 2024
    Applicant: SAFRAN ELECTRONICS & DEFENSE
    Inventors: Bertrand SEVAGEN, Franck ALEXANDRE, Etienne MERLET