Patents by Inventor Pierre Stassen

Pierre Stassen 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 for limiting liquid loss, suitable for a pressurized liquid dispenser
    Patent number: 5704522
    Abstract: A device for limiting liquid loss in pressurized liquid dispensers having a membrane, which is elastically deformable and capable of occupying two positions, namely: (a) a resting position in which it has three support zones, namely on a first bearing surface and a second bearing surface and on the protruding part of head of knob; and (b) a deformed position in which its end of larger diameter is raised from the first bearing surface by the stress exerted by the pressurized liquid so as to leave a free passage for said liquid, membrane in this position, however, remaining in contact with the second bearing surface and with the protruding part of knob head.
    Type: Grant
    Filed: March 18, 1996
    Date of Patent: January 6, 1998
    Assignee: Total Raffinage Districution S.A.
    Inventors: Alain Orgeolet, Pierre Stassen, Yannick Lallinec, Gilbert Rault