Apparatus for damping noise from exhaust air outlets

Details Apparatus for damping noise from exhaust air outlets Apparatus for damping noise from exhaust air outlets

1979-04-24

1981-11-10

Hix, L. T.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181256, 181258, F01N 110

Patent

active

042993059

ABSTRACT:
A sound absorber or silencor for sound from outlets of air or gas comprising a tube or flexible hose (2) which is connected to an outlet (1) of air or gas and which contains a sound absorbing body (3), whereby the tube or hose (2) and the sound absorbing body (3) can move more or less freely in relation to each other and/or in which the tube or hose (2) together with the sound absorbing body (3) is made easily flexible. Preferably both the outer hose (2) and the sound absorbing body are flexible and the sound absorbing body is movable inside the hose (2). The sound body (3) can be a strong, threads, fibres, loops etc. of plastic, metal, natural fibres or similar material.

REFERENCES:
patent: 3374856 (1968-03-01), Wirk
patent: 3526293 (1970-09-01), Hayes et al.
patent: 3601219 (1971-08-01), Raschke
patent: 3957133 (1976-05-01), Johnson
patent: 4121686 (1978-10-01), Keller, Jr.
patent: 4149862 (1979-04-01), Sewell, Sr.

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