Patents by Inventor Fabrice Frappereau

Fabrice Frappereau 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).

  • Sensitive key device having a detective surface in direct contact with a plate
    Patent number: 5892652
    Abstract: This invention concerns a sensitive key device with capacitive effect working through an electrically insulating plate, the key being supported by a printed circuit board. According to the invention, the bottom of a single part having a spring blade made of an electrically conducting material is fixed to the printed circuit board. The top (11) of this part forms a detection surface designed to be placed in contact with the transparent plate. The center of the part makes the part flexible such that the detection surface is in elastic contact with the plate, regardless of parallelism defects between this plate and the printed circuit board.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: April 6, 1999
    Assignee: Compagnie Europeenne pour l'Equipement Menager-Cepem
    Inventors: Jean-Michel Bony, Fabrice Frappereau, Kim Ly Kha, Jean-Pierre Nugeyre