US PATENT SUBCLASS 451 / 328
.~.~ Drum
Current as of: June, 1999
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DEFINITION
Classification: 451/328
Drum:
(under subclass 326) Abrading machine comprising a rotary drum or container, commonly known also as a "rumble."
(1) Note. This subclass is generic or residual with respect to rotary tumbling drums regardless of the expressed function, except as noted in the search notes below.
(2) Note. Included here are means for fluid contact of work combined with drum mechanism. The inclusion of means to treat the fluid, other than pumping or recirculation means, is too much for this subclass and requires classification on the basis of the disclosed function.
SEE OR SEARCH THIS CLASS, SUBCLASS:
85+, for a tumbling barrel having means for delivering an abradant blast upon the work.
SEE OR SEARCH CLASS
68, Textiles: Fluid Treating Apparatus,
18, for textile treating apparatus including means to reclaim and reuse a solvent. 69, Leather Manufactures,
30, for rotary drum leather treater.
99, Foods and Beverages: Apparatus,
605+, and 630+ for a drum for hulling or peeling that may rotate.
118, Coating Apparatus,
19, and 417+ for coating apparatus having means to tumble work and coating material.
134, Cleaning and Liquid Contact With Solids, appropriate subclasses for cleaning by tumbling in a rotary drum device without an abradant and involving liquid contact.
165, Heat Exchange,
88, and 89+ for a rotary heat exchange drum.
241, Solid Material Comminution or Disintegration,
176+, and the notes thereto for rotary drum comminutors. 366, Agitating,
220+, for a rotary drum agitator.
422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing,
209+, for chemical apparatus employing a tank which rotates during use.
