Patents Examined by Howard B. Blanksenship
  • Sound-proofing foam panels
    Patent number: 5060752
    Abstract: A sound-proofing panel for the cladding of machine tools consists of a foam board (28) of a thickness of at least approximately 10 cm., over which is glued a tear-resistant plastic sheet (38). The connection to the frame (12, 14) of the machine is made by means of self-catching strip fastenings (27).
    Type: Grant
    Filed: September 5, 1989
    Date of Patent: October 29, 1991
    Inventor: Franz Heiberger