US PATENT SUBCLASS 73 / 864.44
.~.~.~ Corer


Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

863  DF  SAMPLER, SAMPLE HANDLING, ETC. {11}
864  DF  .~ Capture device {9}
864.41  DF  .~.~ Cutter, tearer, or scraper {3}
864.44.~.~.~ Corer {1}
864.45  DF  .~.~.~.~> With corer advancing means


DEFINITION

Classification: 73/864.44

Corer:

(under subclass 864.41) Subject matter wherein the cutting or tearing element cuts only the periphery of the sample as it is advanced into the source material, leaving a sample in the form of an undisturbed, central portion.

SEE OR SEARCH CLASS

175, Boring or Penetrating the Earth,

403+, and the search there noted for a bit for cutting an earth core.

408, Cutting by Use of Rotating Axially Moving Tool,

204+, for other corer.