Back-fire resistant lock seam for muffler shells
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United States of America Patent
Stats
-
Jun 8, 1982
Grant Date -
N/A
app pub date -
Sep 15, 1980
filing date -
Sep 15, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A muffler wherein the shell comprises a metal sheet the ends of which are retained together in an interlocked joint has a shielding strip on the interior of the tube secured thereto in overlapping relation to the interlock. Preferably the sheet is a two ply, one end of the inner ply being retained in the joint, the other end forming the shielding strip, the edge of which is spot welded to the interior surface of the shell. The muffler is resistant to damage from back-fires.
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Cited Art Landscape
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