Acoustics – Sound-modifying means – Muffler – fluid conducting type
Reexamination Certificate
2010-07-21
2011-12-27
Martin, Edgardo San (Department: 2832)
Acoustics
Sound-modifying means
Muffler, fluid conducting type
C181S252000, C181S267000
Reexamination Certificate
active
08083025
ABSTRACT:
A silencer includes an inner cylinder that is connected to an exhaust pipe and a partition cylinder that is accommodated in a housing and that sections an expansion chamber in the housing. A group of partition-cylinder small holes is formed in the partition cylinder, and a group of inner-cylinder small holes is formed in the inner cylinder. The group of partition-cylinder small holes and the group of inner-cylinder small holes do not overlap each other in an axial direction, and are separated from each other by a predetermined distance in the axial direction.
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Eguchi Yoshihiko
Murakami Fumiaki
Ditthavong Mori & Steiner, P.C.
Honda Motor Co. Ltd.
Martin Edgardo San
LandOfFree
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