US PATENT SUBCLASS 494 / 67
.~ Including structure located within vertically-oriented bowl and extending outwardly from central region (e.g., axis) thereof

Current as of: June, 1999
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494 /   HD   IMPERFORATE BOWL: CENTRIFUGAL SEPARATORS

43  DF  ROTATABLE BOWL {16}
67.~ Including structure located within vertically-oriented bowl and extending outwardly from central region (e.g., axis) thereof {2}
68  DF  .~.~> Comprising plurality of elements, each concentrically encircling axis of bowl and spaced therealong {2}
74  DF  .~.~> Comprising plurality of axially-extending, plate-like elements, each having its inner edge lying along central region {1}

DEFINITION

Classification: 494/67

Including structure located within vertically-oriented bowl and extending outwardly from central region (e.g., axis) thereof:

(under subclass 43) Apparatus wherein the member turns about a generally vertical axis and includes internal structure which moves with it, and wherein the structure is so formed and positioned as to extend away from either (a) the axis of rotation of the member, or (b) a locus somewhat removed from the axis, in a manner whereby it is directed, at least in part, toward a sidewall of the member.

(1) Note. The phrase, "a locus somewhat removed from the axis", is necessitated by the fact that the region immediately surrounding the axis is sometimes (a) an open space, or (b) occupied by an element such as a feed tube.

(2) Note. Although the structure of this and the indented subclasses extends in the direction of a sidewall of the member, it is the exception rather than the rule for it to engage therewith.

(3) Note. The structure of this area usually presents a surface across which one or more components of the material flow when the member is turning about its axis.

SEE OR SEARCH THIS CLASS, SUBCLASS:

44, for a separator wherein the rotatable bowl comprises a plurality of bowls which are partly or wholly within one another, and see (3) Note thereof for an explanation of the resemblance which sometimes exists between the art of that subclass (44) and that of this area (67+).