Patents by Inventor Alain Riwan

Alain Riwan 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).

  • Device to guide an object around two axes of rotation
    Patent number: 4900997
    Abstract: A device to guide an object (A) around two axes (R.sub.1 and R.sub.2).A motor (M.sub.1) controls rotation around an axis (R.sub.1) by three gears (51, 70, 71); a further motor (M.sub.2) controls the rotation of a fork joint (C) around another axis (R.sub.2) by two other gears (26, 27). It simultaneously lets run the entire first motor (M.sub.1). The gears are calculated so that the main shaft (72) of the object (A) moves around (R.sub.2), but does not then revolve around (R.sub.1).
    Type: Grant
    Filed: September 20, 1988
    Date of Patent: February 13, 1990
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Patrick Durand, Francois Viette, Alain Riwan