Patent ID: 8876119

Claim:
A sound attenuation system, comprising: a sound wall with a first opening disposed adjacent to but spaced apart from a second opening; the first opening accommodating a first duct and a first grommet, the second opening accommodating a second duct and a second grommet; the first grommet including a first cylindrical section that passes through the first opening and that accommodates the first duct, the first cylindrical section including a proximal end connected to a proximal flange, the first cylindrical section further including a distal end connected to a distal flange with the sound wall disposed between the proximal and distal flanges of the first grommet; the second grommet including a second cylindrical section that passes through the second opening and that accommodates the second duct, the second cylindrical section including a proximal end connected to a proximal flange, the second cylindrical section further including a distal end connected to a distal flange with the sound wall disposed between the proximal and distal flanges of the second grommet; the proximal flange of the first grommet including a proximal side edge disposed between the first and second openings, the proximal flange of the second grommet also including a proximal side edge disposed between the first and second openings and that abuts the proximal side edge of the first grommet; the distal flange of the first grommet including a distal side edge disposed between the first and second openings, the distal flange of the second grommet also including a distal side edge disposed between the first and second openings and that abuts the distal side edge of the first grommet; the proximal side edges of the first and second grommets being disposed between the sound wall and a proximal plate, the distal side edges of the first and second grommets being disposed between the sound wall and a distal plate; and the proximal and distal plates being coupled together with the proximal side edges, distal side edges and sound wall sandwiched therebetween.