Acoustics – Sound-modifying means – Muffler – fluid conducting type
Reexamination Certificate
2007-02-13
2007-02-13
San Martin, Edgardo (Department: 2837)
Acoustics
Sound-modifying means
Muffler, fluid conducting type
C181S249000, C181S251000, C181S253000, C181S257000, C181S268000, C181S269000, C181S275000
Reexamination Certificate
active
10818392
ABSTRACT:
A muffler has a main body, and an inner shell spaced radially inwardly of the main body by an annular volume therebetween. The inner shell has an internal volume radially inward of the annular volume. The muffler has primary and secondary parallel paths therethrough, with the primary path extending through the internal volume, and the secondary path extending through the annular volume.
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Andrus Sceales Starke & Sawall LLP
Fleetguard Inc.
Martin Edgardo San
Schelkopf J. Bruce
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