Patents by Inventor Kefei WEN

Kefei WEN 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).

  • Parallel mechanism with kinematically redundant actuation
    Patent number: 11945111
    Abstract: A spatial parallel mechanism comprises a platform. Three or more legs configured for extending from a base or ground to the platform, each leg has a distal link, one or more distal joint providing one rotational degree of freedom (DOF) about a distal rotational axis, the distal joint connecting a distal end of the distal link to the platform. A proximal joint provides at least two rotational DOFs at the proximal end of the distal link. Assemblies of joints and links provide DOFs to each said leg between the proximal joint and the base or ground. The distal rotational axes of the three legs are parallel to one another.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: April 2, 2024
    Assignee: UNIVERSITÉ LAVAL
    Inventors: Clément Gosselin, Kefei Wen, David Harton, Thierry Laliberte
  • PARALLEL MECHANISM WITH KINEMATICALLY REDUNDANT ACTUATION
    Publication number: 20220143816
    Abstract: A spatial parallel mechanism comprises a platform. Three or more legs configured for extending from a base or ground to the platform, each leg has a distal link, one or more distal joint providing one rotational degree of freedom (DOF) about a distal rotational axis, the distal joint connecting a distal end of the distal link to the platform. A proximal joint provides at least two rotational DOFs at the proximal end of the distal link. Assemblies of joints and links provide DOFs to each said leg between the proximal joint and the base or ground. The distal rotational axes of the three legs are parallel to one another.
    Type: Application
    Filed: February 28, 2020
    Publication date: May 12, 2022
    Inventors: Clément GOSSELIN, Kefei WEN, David HARTON, Thierry LALIBERTE