A sound attenuating device including a sound insulating structure and a windband. The sound insulating structure is constructed and arranged to receive vented air from an exhaust vent. The windband is affixed to the sound insulating structure and is constructed and arranged to prevent water from entering the sound insulating structure. The windband also provides a structure for attenuating sound.
申请公布号
CA2404992(C)
申请公布日期
2005.08.02
申请号
CA20022404992
申请日期
2002.01.29
申请人
TWIN CITY FAN COMPANIES, LTD.
发明人
BARRY, CHARLES L.;LECLERC, DAVID P.;TANG, THANH K.;SMITH, JAMES L.