Patents by Inventor Christian R. Fauchet

Christian R. Fauchet 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).

  • Self-locking screw - nut assembly
    Patent number: 4768908
    Abstract: A self-locking screw-nut assembly is provided characterized in that the screw (2) has one or more median threads (4) of reduced diameter, whereas the nut (1) is designed to be deformed locally by an external action at the level of these reduced diameter threads after tightening to the desired torque, so that the displaced metal fills the gap (7) left free between the inner thread of the nut (1) and said reduced diameter threads (4) of the screw (2).
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: September 6, 1988
    Assignee: Etablissements Saint-Chamond-Granat
    Inventor: Christian R. Fauchet
  • Self-locking nut and tightening tool
    Patent number: 4759237
    Abstract: A self-locking nut is provided having, at its periphery, a number of longitudinal channels (3) with semi-circular section intended to cooperate with drive balls carried by an appropriate tightening tool, said balls causing, at the end of tightening, the formation of a circular groove (10) by forcing back the metal situated between the channels (3), which results in radial deformation of the inner threads of the nut (1) at the level of said groove (10).
    Type: Grant
    Filed: December 18, 1986
    Date of Patent: July 26, 1988
    Inventors: Christian R. Fauchet, Reynald Rousselle