Patents by Inventor Jean-Pierre Youel

Jean-Pierre Youel 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 the pressurized dispensing of a product, especially a foaming product, and processes for filling a container for a device of this kind
    Patent number: 5277336
    Abstract: The device comprises a container (3) provided in its upper part with an opening (4) fitted with a distribution valve (11), and a flexible pouch (9) disposed in the interior of the said container (3) in order to form a partition between the product (2) to be dispensed and a propellant (14) capable of maintaining a sufficient internal pressure for dispensing the product. The active product (2) to be dispensed is situated in the interior of the flexible pouch (9) and the valve (11) does not have a dip tube. A quantity of propellant (14) is introduced into the volume (10) of the container (3) situated around the flexible pouch (9). The flexible pouch (9) is made of a membrane which is sufficiently permeable to allow for the maintenance of an equilibrium of the gaseous pressure of the propellant (14) between the volume (10) exterior to the pouch (9) and the interior of this pouch (9).
    Type: Grant
    Filed: May 28, 1993
    Date of Patent: January 11, 1994
    Assignee: L'Oreal
    Inventor: Jean-Pierre Youel