Patents by Inventor Joseph Nedelec

Joseph Nedelec 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).

  • Safety device with bursting knife and diaphragm for limiting the pressure of a fluid
    Patent number: 4580589
    Abstract: Safety device for limiting the pressure of a fluid, having at least one hollow modular member, which is open at both ends, a diaphragm closing one end, and a knife mounted within the modular member facing the diaphragm at a regulatable distance from it. The device also has a piston for making the knife strike the diaphragm in order to bring about bursting before this would be done by deformation of the diaphragm under the effect of a given pressure. The knife may have a pointed central lip bordered by two leading lips so as to reliably bring about bursting of the diaphragm.
    Type: Grant
    Filed: April 6, 1984
    Date of Patent: April 8, 1986
    Assignee: Electricite de France Service National
    Inventors: Jean Le Bras, Joseph Nedelec