US PATENT SUBCLASS 181 / 231
.~.~ With solid particle separator (e.g., spark arrestor, vacuum cleaner, etc.)

Current as of: June, 1999
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181 /   HD   ACOUSTICS

175  DF  SOUND-MODIFYING MEANS {12}
212  DF  .~ Muffler, fluid conducting type {25}
231.~.~ With solid particle separator (e.g., spark arrestor, vacuum cleaner, etc.)

DEFINITION

Classification: 181/231

With solid particle separator (e.g., spark arrestor, vacuum

cleaner, etc.):

(under subclass 212) Subject matter wherein there is provided additional means which at the same time remove from the moving fluids (exhaust) all entrained dirt particles, sparks, and the like.

SEE OR SEARCH CLASS

96, Gas Separation: Apparatus,

380+, for gas separation apparatus having sound damping means.