US PATENT SUBCLASS 252 / 88.1 DUST SUPPRESSANTS FOR BULK MATERIALS, OR PROCESSES OF PREPARING (E.G., FOR CONSOLIDATING DUST IN COAL MINES, CONTROLLING SOIL EROSION, ETC.)
Current as of: June, 1999
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DUST SUPPRESSANTS FOR BULK MATERIALS, OR PROCESSES OF
PREPARING (E.G., FOR CONSOLIDATING DUST IN COAL MINES,CONTROLLING SOIL EROSION, ETC.):
(under the class definition) Compositions specialized or designed for suppressing dust (e.g., by binding, consolidating, etc.) from materials stored in large bulk, usually in open outdoor spaces, or processes of preparing the compositions.
(1) Note. Processes involving the mere use of a claimed composition are included in this subclass. If no composition is claimed or significant process steps are involved in addition to such mere use, the patent is classifiable in other appropriate classes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
88.2, for compositions intended to be applied to a substrate for collecting fine particles.
SEE OR SEARCH CLASS
299, Mining or In Situ Disintegration of Hard Material,
12, for processes of assuring mine safety. 404, Road Structure, Process, or Apparatus,
76, for processes of dust fixation or soil stabilization.
