Patents Assigned to Sutcliffe Speakman Limited
  • Acoustic enclosures
    Patent number: 7448467
    Abstract: An acoustic enclosure such as a loudspeaker (10) uses within the cabinet adsorbent material, and/or containment means (22) for the adsorbent material, which is at least partially hydrophobic. Preferably, the material is activated carbon treated to provide it with hydrophobic properties. Preferably, the adsorbent material is treated with a silicon-containing compound. This improves the acoustic compliance of the acoustic enclosure.
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: November 11, 2008
    Assignees: KH Technology Corporation, Sutcliffe Speakman Limited
    Inventors: Julian Wright, Thomas Anthony Ryan