Patents by Inventor Pascal Pichonnier

Pascal Pichonnier 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).

  • Receptacle for semi-solid substances and having a non-round follower piston
    Patent number: 5961005
    Abstract: A receptacle (1) for containing a semi-solid substance, has an oblong cylindrical body surmounted by a neck for receiving a dispenser device of the type that does not allow ingress of air. The receptacle includes a follower piston (2) that slides with sealing contact inside the oblong cylindrical body as substance is expelled. The follower piston has an outer contact periphery (21) of oblong shape including two portions of greater curvature (21') defined by a pair of circular arcs having the same radius of curvature. The arcs being disposed opposite each other in first mirror symmetry (Sr) and being connected to each other by two connection segments (21"). Preferably, each of the two connection segments (21") is defined by at least one circular arc.
    Type: Grant
    Filed: February 14, 1997
    Date of Patent: October 5, 1999
    Assignee: Valois S.A.
    Inventors: Pascal Pichonnier, Garcia Firmin