US PATENT SUBCLASS 209 / 340
.~.~.~.~.~.~.~ With impact

Current as of: June, 1999
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209 /   HD   CLASSIFYING, SEPARATING, AND ASSORTING SOLIDS

233  DF  SIFTING {16}
*  DD  .~ Plane sifters {2}
*  DD  .~.~ Horizontal and inclined {4}
*  DD  .~.~.~ Reciprocating {6}
*  DD  .~.~.~.~ With horizontal shake {3}
333  DF  .~.~.~.~.~ Lateral {4}
339  DF  .~.~.~.~.~.~ Swinging {1}
340.~.~.~.~.~.~.~ With impact

DEFINITION

Classification: 209/340

(under subclass 339) Flat horizontal or inclined sifters, the movement being produced by impact or being modified by a jar or bump at some stage.

(1) Note. Where the vertical component of motion due ordinarily to the use of swinging standards or hangers is merely incidental, it is disregarded as a qualification; but where it is marked and material and there is an impact or jar the device is placed in subclass 328. Where there is both sliding and swinging support, the shake is transverse, as defined above, and there is an impact or jar, the device is placed in subclass 338.

SEE OR SEARCH THIS CLASS, SUBCLASS:

328, (see (1) Note).

338, (see (1) Note).