Free flow sound attenuating device and method of using

Details Free flow sound attenuating device and method of using Free flow sound attenuating device and method of using

F - Mech Eng,Light,Heat,Weapons

01

N

172/38, 172/40

F01N 13/00 (2010.01) F16L 55/02 (2006.01) F16L 55/033 (2006.01)

Patent

CA 1042809

ABSTRACT A sound attenuating device characterized by several novel structures which include (1) a foraminous conduit surrounded by (2) a housing having in series after the inlet end (3) a low frequency attenuator and (4) a high frequency attenuator, the conduit acting in operative association with the low frequency attenuator to enhance to effectiveness of the high frequency attenuator by providing a lower resistance to the high frequency sound entering the high frequency attenuator.

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