(under the class definition) Subject matter which removes chaff and fine residue from the threshed and separated grain.
(1) Note. The device usually includes a grain pan, chaffer, and chaffer extension. The device cleans the crop by the
combined action of cleaning element and an air blast.
SEE OR SEARCH CLASS
19, Textiles: Fiber Preparation,
9, for decorticating fibers with air blast.
99, Foods and Beverages: Apparatus,
516+, for means to treat food products by fluid application; subclass 570 for means for removing shell or external portion by fluid application. 171, Unearthing Plants or Buried Objects,
17, for separation by fluid current.
209, Classifying, Separating, and Assorting Solids,
380, for devices having means to project fluid jets or streams against the sifting elements for purpose of cleaning or keeping open the sifting passages.
