US PATENT SUBCLASS 73 / 152.26
.~.~.~.~ With sealing detail

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

152.01  DF  BOREHOLE OR DRILLING (E.G., DRILL LOADING FACTOR, DRILLING RATE, RATE OF FLUID FLOW) {6}
152.18  DF  .~ Fluid flow measuring or fluid analysis {6}
152.23  DF  .~.~ With sampling {3}
152.24  DF  .~.~.~ From formation wall {2}
152.26.~.~.~.~ With sealing detail

DEFINITION

Classification: 73/152.26

With sealing detail:

(under subclass 152.24) Subject matter including means between a sample induction means and the formation wall which prevents the contamination of formation samples with borehole fluids and wherein significance is attributed to the contamination prevention means.

SEE OR SEARCH CLASS

166, Wells,

100, for a lateral probe or port sealed against a well wall.

277, Joint Packing, appropriate subclass for seals, per se.