Muffler construction
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United States of America Patent
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-
Oct 10, 1989
Grant Date -
N/A
app pub date -
Aug 1, 1988
filing date -
Aug 1, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A muffler construction having improved sound attenuation characteristics. A tapered tubular metal screen is disposed within the outlet conduit of a muffler and has a axis concentric with the axis of the conduit. The screen has a closed end preferably facing in a downstream direction with respect to gas flow, and the opposite open end of the screen is attached to the conduit. The screen acts to reduce the sound levels without increasing the overall size of the muffler and with a minimum increase of weight.
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