(under the class definition) Apparatus having means to remove buried objects from the earth and including means to separate desired objects from accompanying material or objects by means of any device not provided for above which acts in response to the difference between the physical properties or attributes of (a) the desired objects and (b) the accompanying object or materials to be separated therefrom.
(1) Note. Apparatus which separates objects from other objects or material in response to a mere difference in size is excluded.
(2) Note. For example, the objects may be separated in response to differences in their weight, shape, density, coefficient of friction, elasticity, electroconductivity or magnetic properties.
(3) Note. Included, for example, are yieldable means which are selectively deformable by either one of (a) the desired objects or (b) the accompanying material or objects in order to separate the two.
SEE OR SEARCH THIS CLASS, SUBCLASS:
14+, 84+ and 111+, for apparatus which separates desired objects from undesired objects or material in response to mere difference in size.
SEE OR SEARCH CLASS 209, Classifying, Separating, and Assorting Solids,
599, and 699 for apparatus for separating objects in accordance with the degree of compressibility, and subclasses
598 and 941 for apparatus for separating objects in accordance with the shape or contour of the objects regardless of the relative sizes thereof.
