Patents Assigned to Illbruck GmbH Schaumstofftechnik
  • Foam material sound absorption
    Patent number: 4584232
    Abstract: The present invention relates to a sound absorbing member comprising a fiber grid insert disposed between and bonded to two open cell foam panels.
    Type: Grant
    Filed: September 13, 1984
    Date of Patent: April 22, 1986
    Assignee: Illbruck GmbH Schaumstofftechnik
    Inventors: Werner Frank, Josef F. Irregeher