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1. 发明授权

US5226267A Acoustical diffusing and absorbing cinder blocks 失效
标题翻译：声扩散吸收块
公开(公告)号：US5226267A
公开(公告)日：1993-07-13
申请号：US781385
申请日：1991-10-23
申请人： Peter D'Antonio , John H. Konnert , Jorge E. Pardo
发明人： Peter D'Antonio , John H. Konnert , Jorge E. Pardo
IPC分类号： E04B1/84
CPC分类号： E04B1/8404 , E04B2001/8485 , E04B2001/849
摘要： Disclosed are a variety of structural acoustical cinder blocks including locking blocks which are intended to be assembled together through the use of mortar to provide a diffusor of desired shape and configuration. Each diffusor includes a plurality of wells, the depths of which are determined through the use of number theory sequences, such as, for example, the quadratic-residue sequence developed by Karl Frederick Gauss. The surface irregularities formed in the blocks are unique in that they provide a flat power spectrum and constant scattered energy in the diffraction directions. Each of the blocks including wells also includes a low frequency sound absorbing chamber. The blocks are installed such that there is a stacked bond on the diffusing face and a running bond on the structural rear face. If desired, a single block may be made which includes an entire sequence of wells and dividers.
摘要翻译：公开了各种结构声学煤渣块，其包括通过使用砂浆组装在一起以提供所需形状和构型的扩散器的锁定块。每个扩散器包括多个孔，其深度通过使用数理论序列确定，例如由卡尔·弗雷德里克·高斯（Karl Frederick Gauss）开发的二次残余序列。在块中形成的表面凹凸是独特的，因为它们在衍射方向上提供平坦的功率谱和恒定的散射能。包括孔的每个块还包括低频吸声室。这些块被安装成使得在漫射面上存在堆叠的结合，并且在结构的后表面上具有行进的结合。如果需要，可以制造包括井和分隔件的整个序列的单个块。

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