Patents by Inventor Gilles Grenet

Gilles Grenet 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).

  • Electrical device with embedded resin and visible resin inlet and discharge ducts
    Patent number: 5293002
    Abstract: A proximity detector has a casing containing a probe (4) and a printed circuit (3), the upper end of the casing being closed by a plug (35) provided with a filling orifice (14) and with connecting-pins (36). The nozzle of a plastic injector (13) is fitted in position within the filling orifice, said nozzle being provided with two adjacent ducts. A hardenable resin is caused by centrifugation to flow into the casing via a first duct while simultaneously driving-out the air which is present within the casing via the second duct, thus ensuring rapid and efficient filling. When the casing has been filled and the resin has hardened, the injector (13) is cut-off in close proximity to the plug (35). Complete filling can be checked by inspecting the surface appearance of the two leading portions of solidified resin flux which are thus visible at the level of the orifice (14).
    Type: Grant
    Filed: March 20, 1992
    Date of Patent: March 8, 1994
    Assignee: Telemecanique
    Inventors: Gilles Grenet, Catherine Ullmann, Gerard Pitault