US PATENT SUBCLASS 494 / 68
.~.~ Comprising plurality of elements, each concentrically encircling axis of bowl and spaced therealong

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

43  DF  ROTATABLE BOWL {16}
67  DF  .~ Including structure located within vertically-oriented bowl and extending outwardly from central region (e.g., axis) thereof {2}
68.~.~ Comprising plurality of elements, each concentrically encircling axis of bowl and spaced therealong {2}
69  DF  .~.~.~> Each extending generally normally to region, and having surface displaying three-dimensional configuration
70  DF  .~.~.~> Each extending away from region with significant downward, as well as significant outward, component (e.g., nested cones) {3}

DEFINITION

Classification: 494/68

Comprising plurality of elements, each concentrically encircling axis of bowl and spaced therealong:

(under subclass 67) Apparatus wherein the internal structure comprises, at least in part, a plurality of elements which are centered on and extend around the vertical axis of the member and which are arrayed (e.g., nested, stacked, etc.) along that axis in such a manner that at least a slight gap exists between any two adjacent elements.

(1) Note. Although the elements have the axis as their geometric center, they frequently do not originate at the axis, as discussed in (1) Note of subclass 67 above.

SEE OR SEARCH THIS CLASS, SUBCLASS:

67, as explained in the reference thereto appearing in (1) Note above.