Acoustics – Sound-modifying means – Muffler – fluid conducting type
Reexamination Certificate
2007-06-12
2007-06-12
Sandy, Robert J. (Department: 3677)
Acoustics
Sound-modifying means
Muffler, fluid conducting type
C181S228000, C181S231000, C411S389000, C411S546000, C403S408100, C173SDIG002
Reexamination Certificate
active
10658267
ABSTRACT:
The invention relates to an attachment pin (1) for fixing an exhaust-gas muffler (2) in an apparatus part (4) of a portable handheld work apparatus (5) driven by an internal combustion engine. The exhaust-gas muffler (2) includes especially an exhaust-gas catalytic converter (3). An at least partially exposed region (6) is provided with a cooling surface (7) and is on the attachment pin (1) between the exhaust-gas muffler (2) and the apparatus part (4).
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Andreas Stihl AG & Co. KG
Ottesen Walter
Sandy Robert J.
Sharp Jeff
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