Patents by Inventor Paul Amand Louis Coudray

Paul Amand Louis Coudray 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).

  • Sound proofed valve for fluid under pressure
    Patent number: 4103702
    Abstract: The invention comprehends a sound proofed valve for fluid under pressure, comprising a movable obturator for progressively uncovering a series of fluid expansion orifices positioned inside an expansion area, a sound proofing means also positioned inside said expansion area and located opposite fluid jets issuing, in operation of said valve, from said orifices, and a permeable splash guard obstacle placed between said orifices and said sound proofing means and spaced from said sound proofing means.
    Type: Grant
    Filed: June 17, 1976
    Date of Patent: August 1, 1978
    Assignee: Bertin & Cie
    Inventors: Louis Duthion, Pierre Bonnet, Paul Amand Louis Coudray