Hollow sound-dampened structure

Details Hollow sound-dampened structure Hollow sound-dampened structure

1977-06-09

1978-10-24

Kelly, Donald G.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181252, 181296, F01N 124

Patent

active

041216865

ABSTRACT:
This invention covers a hollow, sound-dampened structure capable of reducing propagation of high frequency sound waves, in which a hollow, walled structure is covered with sound-transmission barrier material and an outer wrapping of a thin flexible plastic material capable of maintaining the sound-transmission barrier material adjacent to the outer surface of the structure.

REFERENCES:
patent: 2495693 (1950-01-01), Byrd
patent: 2756172 (1956-07-01), Kidd
patent: 3233699 (1966-02-01), Plummer

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