Acoustics – Sound-modifying means – Muffler – fluid conducting type
Reexamination Certificate
2008-06-24
2008-06-24
Jackson, Stephen W (Department: 2836)
Acoustics
Sound-modifying means
Muffler, fluid conducting type
C181S230000, C181S264000, C181S265000, C181S270000
Reexamination Certificate
active
07389853
ABSTRACT:
A muffler suited for use in discharging exhaust gas from an engine. The muffler generally includes a housing that defines a muffler interior, an inlet aperture, and an outlet aperture. A baffle that defines a baffle interior is positioned to divide the muffler interior into an inlet space and an intermediate space. A first aperture is defined within the baffle to provide fluid communication between the inlet space and the intermediate space and a second aperture is formed within the baffle to provide for fluid communication between the intermediate space and the baffle interior. A flow guide is integrally formed with the baffle and is positioned to direct exhaust gas from the baffle interior through the outlet aperture.
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Clasen Kyle
Kindness William M.
Makiya James D.
Ryczek Stephen J.
Briggs & Stratton Corporation
Jackson Stephen W
Michael & Best & Friedrich LLP
Willoughby Terrence R
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