Patents Examined by Michale J Sherry
  • High sound attenuating hearing protection device
    Patent number: 7464786
    Abstract: A hearing protection device insertable into an ear canal is provided, the device generally including a stem portion, a sound attenuating portion affixed to and extending at least partially over the stem portion, and a volume of space disposed between and delimited by the sound attenuating portion and the stem portion, where at least a part of the sound attenuating portion is collapsible into the volume of space during insertion of the hearing protection device into the ear canal.
    Type: Grant
    Filed: June 11, 2004
    Date of Patent: December 16, 2008
    Assignee: Cabot Safety Intermediate Corporation
    Inventors: Robert N. Falco, Richard Knauer, Alan R. Seville