Acoustical attenuating device

Details Acoustical attenuating device Acoustical attenuating device

1974-04-05

1976-12-28

Hix, L. T.

Acoustics

Auditorium

181 47R, F01N 108

Patent

active

039996247

ABSTRACT:
A pneumatic muffler providing within the cavity formed by its conical-like shell a proportionate expansion chamber in immediate communication with an exhaust port and an integrally related quiescent chamber reducing in volume for cushioning the introduced volume of exhaust so as to convert the same into a passive modulated acoustical pressure wave, which is then exhausted into the ambient atmosphere.

REFERENCES:
patent: 753845 (1904-03-01), Brockway
patent: 1023225 (1912-04-01), Shlosberg
patent: 1024688 (1912-04-01), Lewis
patent: 1059279 (1913-04-01), Cottrell
patent: 1155757 (1915-10-01), Rapp
patent: 1264853 (1918-04-01), Phyfe
patent: 1487312 (1924-03-01), Bull
patent: 2933148 (1960-04-01), Hendry

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