发明名称 Sound insulative masonry block
摘要 A masonry block includes pairs of opposed side walls and opposed web walls forming a cavity therebetween. One of the side walls is apertured to conduct sound waves into the cavity. A panel formed of acoustically insulative material is disposed in the cavity and is spaced from the side walls to form front and rear sound damping chambers therebetween. Sound waves passing through the apertured side wall enter the front damping chamber and are subjected to a damping action within the block. Various sizes, shapes, and patterns of openings in the apertured side wall can provide varying sound damping effects. The panel may be inclined at an acute angle relative to the apertured side wall. The block cavity may be divided into cavity portions of different volume to provide for effective sound damping of high and low frequency sound waves.
申请公布号 US4071989(A) 申请公布日期 1978.02.07
申请号 US19760650029 申请日期 1976.01.19
申请人 WARREN INSULATED BLOC, INC. 发明人 WARREN, MILLARD R.
分类号 E04B2/02;E04C1/41;(IPC1-7):E04B1/82 主分类号 E04B2/02
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