Sound dampening assembly for automotive exhaust system
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United States of America Patent
Stats
-
Jul 24, 2007
Grant Date -
Jan 5, 2006
app pub date -
Jul 1, 2004
filing date -
Jul 1, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A sound dampening assembly adapted to engage an exhaust pipe in an automotive engine exhaust system adjacent an outlet of an internal combustion engine. The assembly includes a bottle portion having a single opening and an interior defining a predetermined amount of volume and a neck portion having a first end attached to the opening of the bottle portion and extending from the bottle portion. The neck portion is in fluid communication with the bottle portion interior and includes a second end adapted to be attached to the exhaust pipe. The neck portion has an interior defining a predetermined amount of volume and the bottle portion and the neck portion are sized to attenuate vibration at a predetermined frequency in the exhaust system.
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