Patents by Inventor Marcel Demichel

Marcel Demichel 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).

  • Method and device for riveting a shroud to the tips of rotor blades
    Patent number: 5060375
    Abstract: A method and device for rivetting a shroud to the blades of a rotor stage of a rotor, each blade having one or more tenons adapted to be inserted into one or more holes in the shroud. The tenons are at an angle to the median plane of the rotor stage. A rivetting head is positioned in line with the tenon to be rivetted and held in place by two flanges between which the group of blades is clamped. The head then moves into alignment with another tenon along a circular arc or laterally. The method and device enable regular repetitive rivetting without any medical or legal restrictions.
    Type: Grant
    Filed: April 20, 1990
    Date of Patent: October 29, 1991
    Assignee: GEC Alsthom SA
    Inventor: Marcel Demichel