Muffler

Details Muffler Muffler

2007-11-09

2010-10-12

Donels, Jeffrey (Department: 2832)

Acoustics

Sound-modifying means

Muffler, fluid conducting type

C181S246000, C181S252000, C181S256000, C181S282000

Reexamination Certificate

active

07810609

ABSTRACT:
An absorption muffler includes a metallic exhaust pipe including a plurality of perforations, a polymeric housing carried by the exhaust pipe and enclosing the plurality of perforations, and including axially opposed ends. Thermal insulation is carried radially between the exhaust pipe and the polymeric housing and axially between the axially opposed ends inclusive thereof. Acoustic insulation is carried between the thermal insulation and the polymeric housing.

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