Patents by Inventor Philippe Mao

Philippe Mao 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).

  • Metal dispensing container with an externally crimped valve cup
    Patent number: 5226573
    Abstract: A metal dispensing container for contents under pressure comprising a neck portion with a diameter of over 22 mm and a cup-shaped valve portion. A clearance gap of at least 0.5 mm is left between the inside of the neck portion and the cup portion into which the neck portion is fitted following insertion of a seal. The outside of the cup-shaped portion is crimped over the neck portion so that deformation of the seal prevents leakage.
    Type: Grant
    Filed: April 1, 1992
    Date of Patent: July 13, 1993
    Assignee: Cebal SA
    Inventors: Pierre Brugerolle, Philippe Mao