Patents by Inventor Pascal Hamery

Pascal Hamery 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).

  • Hearing protector against loud noise
    Patent number: 6070693
    Abstract: The invention relates to a hearing protector for attenuating, selectively or not, noises that can have an intensity of up to 190 dB, designed to be inserted in sealing fashion into the auditory canal. The hearing protector includes a flexible cylindrical body that has a ferrule at each end. At least one of the two ferrules has a channel that runs from one end of the ferrule to the center of the cylindrical body and contains an acoustic filter. When the two ferrules each contain an acoustic filter, the filters may or may not be identical.
    Type: Grant
    Filed: January 20, 1999
    Date of Patent: June 6, 2000
    Assignee: Institut Franco-Allemand de Recherches de Saint-Louis
    Inventor: Pascal Hamery
  • Acoustic valve capable of selective and non-linear filtering of sound
    Patent number: 6068079
    Abstract: Acoustic valve capable of selective and non-linear filtering of sound and placeable in a perforated ear plug. The acoustic valve consists of a tube enclosing two rigid disks axially spaced opposite each other, each of the disks containing at least one perforation. The total perforated surface of at least one disk is between 0.03 and 0.5 mm.sup.2.
    Type: Grant
    Filed: August 11, 1997
    Date of Patent: May 30, 2000
    Assignee: I.S.L. Institut Franco-Allemand de Recherches de Saint-Louis
    Inventors: Pascal Hamery, Armand Dancer, Georges Evrard
  • Hearing protector against loud noises
    Patent number: 5936208
    Abstract: The invention relates to a hearing protector for attenuating, selectively or not, noises that can have an intensity of up to 190 dB, designed to be inserted in sealing fashion into the auditory canal. The hearing protector includes a flexible cylindrical body that has a ferrule at each end. At least one of the two ferrules has a channel that runs from one end of the ferrule to the center of the cylindrical body and contains an acoustic filter. When the two ferrules each contain an acoustic filter, the filters may or may not be identical.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: August 10, 1999
    Assignee: Institut Franco-Allemand De Recherches De Saint-Louis
    Inventor: Pascal Hamery