(under the class definition) Apparatus in which the apparatus is specially constructed to introduce fluids into passages or hollows in the work, other than by mere immersion.
(1) Note. The preceding subclasses have special forms of apparatus for treating hollow work.
SEE OR SEARCH THIS CLASS, SUBCLASS:
8, 20 and 22.1+, for processes of treating hollow work.
43, for apparatus for orienting hollow work with a finder for an aperture therein.
53, and 54+, for hollow work operated valves. 62, for hollow work emptying, inverting, orienting, or puncturing combined with treating.
152, for miscellaneous apparatus having means to movably mount hollow work and apply sprays or jets thereto.
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15, Brushing, Scrubbing, and General Cleaning,
3.5+, for apparatus for cleaning tubular work by the passage therethrough of a solid or comminuted mechanical cleaning instrumentality carried in a fluid stream, and subclasses 104.03+ for pipe and tube cleaning implements, per se.
34, Drying and Gas or Vapor Contact With Solids,
104+, for hollow work treatment.
118, Coating Apparatus,
317+, and see the notes thereto, for apparatus for coating the inside of hollow work.
166, Wells, appropriate subclasses for apparatus for cleaning or washing wells.
