Sound insulative masonry block

Details Sound insulative masonry block Sound insulative masonry block

1976-01-19

1978-02-07

Purser, Ernest R.

Static structures (e.g., buildings)

With exposed configuration having acoustical function

Absorbing material behind foraminous facing sheet

52407, 181285, E04B 182

Patent

active

040719898

ABSTRACT:
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.

REFERENCES:
patent: 2944622 (1960-07-01), Dobbins
patent: 3001602 (1961-09-01), Taylor
patent: 3275101 (1966-09-01), Morrissey et al.
patent: 3837426 (1974-09-01), Kleinschmidt
patent: 3846949 (1974-11-01), Okawa

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