US PATENT SUBCLASS 175 / 254
.~.~ Mounted on transverse pivot

Current as of: June, 1999
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175 /   HD   BORING OR PENETRATING THE EARTH

244  DF  WITH MEANS MOVABLE RELATIVE TO TOOL TO RECEIVE, RETAIN, OR SEVER UNDISTURBED CORE {3}
249  DF  .~ Core-retaining or severing means {5}
254.~.~ Mounted on transverse pivot

DEFINITION

Classification: 175/254

(under subclass 249) Apparatus in which the retaining or severing means moves toward the longitudinal axis of the core by swinging movement about a pivot axis which is substantially transverse to the longitudinal axis of the core.

(1) Note. The pivot axis may shift during the pivotal movement of the retaining or severing means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

263+, for expansible cutters mounted on a transverse pivot.

SEE OR SEARCH CLASS

294, Handling: Hand and Hoist-Line Implements,

86.29, for pivoted contracting grapples used in a well bore.