Mechanical or gaseous pressure device for hammering, cutting, scraping, loosening, and/or flushing deposits from a conduit, pipe or tube.
(1) Note. Where such devices utilize a minutely divided solid or pulverulent material in the fluid stream they will be found in the appropriate subclasses of Class 451, Abrading, excepting inventions involving such scouring of open-ended tubular work for the disclosed purpose of cleaning, which are classified in Class 15, subclasses 3.5+. Relative to such subject matter, the line between Classes 15 and 451 is set out in the class definition of Class 451 and in the reference to Class 451 in the Search Class Note to subclass 3.5 of Class 15.
(2) Note. Where the structure of an apparatus provided with tubes is modified to cooperate with a specific cleaner, the combination will be classified with the apparatus. See Class 122, Liquid Heaters and Vaporizers, subclasses 379+, and Class 165, Heat Exchange, subclass 95.
SEE OR SEARCH CLASS
4, Baths, Closets, Sinks, and Spittoons,
255.01+, for an obstruction remover specialized for use on the drain pipe of a sink, bath, or closet.
29, Metal Working,
81.02+, for machines for cleaning single detached metal pipes or the outside of a pipe line.
73, Measuring and Testing, 324, for combination of pipe and tube cleaners with water gage glasses.
131, Tobacco,
232, and 243-246.
134, Cleaning and Liquid Contact With Solids,
166+, for hollow work cleaners there provided for.
