Patents by Inventor Bureau Jacques

Bureau Jacques 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).

  • Fire barrier ventilation sealing assembly and ventilation device equipped with such a sealing assembly
    Patent number: 5811731
    Abstract: This fire barrier ventilation device has a duct (15) surrounded by a sheath (28) made of fire barrier protective material. A fire barrier ventilation sealing assembly (22), formed by a frame having grilles (2, 3) fixed to refractory material plates (4, 5) each bearing a plate (10, 11) of intumescent material, is fixed to the duct facing a ventilation orifice or slit (20) in the latter. A ventilation passage (12) located facing the ventilation slit (20) of the duct (1) containing cables (C) to be protected is formed between the plates (10, 11) of intumescent material.
    Type: Grant
    Filed: March 25, 1996
    Date of Patent: September 22, 1998
    Assignees: Electricite de France-Service National, Mecatiss
    Inventors: Bureau Jacques, Gibault Jacques