(under the class definition) Process or apparatus including a step or means for separating matter mined or excavated from the earth into at least two different components.
(1) Note. This subclass includes an excavating step or means as provided for in Class 37, Excavating, when combined with a step or means to separate components of the excavated material.
SEE OR SEARCH CLASS
37, Excavating, appropriate subclass for a step or means for recovering alluvial or soft material from an in situ location. Class 37 includes selectively picking up materials, (e.g., using a screen in the intake of a suction nozzle), but excavation which includes any separation after the material is picked up is classified in Class 299.
171, Unearthing Plants or Buried Objects, appropriate subclass for process or apparatus for removing nonmineral objects close to the surface of the earth or from the earth and separating into constituent parts and
16, for railroad ballast removal and assorting or separating. 172, Earth Working,
32, for an earth working means combined with a means for separating parts of the earth from each other.
209, Classifying, Separating, and Assorting Solids, appropriate subclass for a process or means to separate solid materials into component parts, and including means to convey material to or from the excavating or separating means.
