发明名称 RESONATOR FOR DETECTORS AND SOUNDERS
摘要 A sound enhancement device for a detector includes a cylindrical portion having a tubular body and an interior cavity longitudinally coextensive therewith. The device includes a first elongated portion and at least a second elongated portion with both portions coupled to the cylindrical portion. The first elongated portion includes a first body portion having a first cavity that is coextensive with the first body portion while the at least second elongated portion includes a second body portion having a second cavity that is coextensive with the second body portion. The cylindrical portion and each of the first and at least the second elongated portions comprise a length of a quarter wavelength of a predefined frequency. The sound enhancement device includes radii of curvatures for causing a wavefront emanating from the sound enhancement device to maximize the radiation efficiency of the sound enhancement device.
申请公布号 WO2013048889(A3) 申请公布日期 2013.05.23
申请号 WO2012US56496 申请日期 2012.09.21
申请人 UTC FIRE & SECURITY CORPORATION;BLANC, ARTHUR;FAUSTINO, VIRGINIA, H.;VINCITORE, ANTONIO, M.;WYSOCKI, JOSEPH, B.;CHIPMAN, CHRISTOPHER, T.;SHANNON, DANIEL, W. 发明人 BLANC, ARTHUR;FAUSTINO, VIRGINIA, H.;VINCITORE, ANTONIO, M.;WYSOCKI, JOSEPH, B.;CHIPMAN, CHRISTOPHER, T.;SHANNON, DANIEL, W.
分类号 G10K11/08;G10K9/20 主分类号 G10K11/08
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