.~ Comprising plurality of bowls partly or wholly within one another
DEFINITION
Classification: 494/44
Comprising plurality of bowls partly or wholly within one another:
(under subclass 43) Apparatus wherein the member comprises two or more receptacle-like members, which members at least partially enclose one another.
(1) Note. Included in this subclass is art wherein the enclosed member, or one of a plurality thereof, may not bear much resemblance to a "bowl" in the sense that the term generally is used in the class, but in which art that member is consistently described and treated as comprising a bowl, drum, rotor, etc.
(2) Note. Although it is the exception rather than the rule for the enclosed member, or one of a plurality thereof, to be driven differently (e.g., independently, oppositely, separately) than the enclosing member, those instance in which it does occur may present an overlapping relationship with regard to the art of subclasses 50+ below, especially subclass 52 thereof. For example, a body of art which exists in that area discloses a drum-like device (sometimes termed a "deflector") which is within the member and is driven differently therefrom; however, that art is distinguishable, at least in part, from the art of this subclass (44) by the fact that the material to be separated never enters the drum (i.e., the separation takes place within the space between the outer surface of the drum wall and the inner surface of the member wall).
(3) Note. The enclosed member, or one of a plurality thereof, sometimes bears a strong physical resemblance to the art of subclasses 66 through 80, below, especially subclasses 77+ thereof, and, in some instances, is classified here (44) rather than there only on the basis of having been accorded "member" status for the reason described in (1) Note above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
31+, for a separator which includes a plurality of separate and distinct bowls.
50+, especially subclass 52 thereof, as explained in the reference thereto appearing in (2) Note above.
66, through 80, especially subclasses 77+ thereof, as explained in the reference thereto appearing in (3) Note above.
