US PATENT SUBCLASS 73 / 152.17
.~.~ With detail of a borehole wall engaging means

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}
152.02  DF  .~ Formation logging (e.g., borehole studies of pressure derivatives or of pressure-temperature derivatives) {8}
152.17.~.~ With detail of a borehole wall engaging means

DEFINITION

Classification: 73/152.17

With detail of a borehole wall engaging means:

(under subclass 152.02) Subject matter including a structure engaging a wall of the borehole either for positioning or for maintaining the positioning of the apparatus while the test is being performed and wherein significance is attributed to the structure engaging the wall.

SEE OR SEARCH CLASS

166, Wells,

241.5, for wall engaging means for well logging devices wherein more well structure is recited than is necessary for perfecting the test.

250, Radiant Energy,

286, for borehole wall engaging means for a well testing apparatus and method.