US PATENT SUBCLASS 175 / 4
.~ Driving core receiver by explosion or with receptacle collecting material in bore


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

2  DF  BORING WITH EXPLOSION IN INACCESSIBLE HOLE {12}
4.~ Driving core receiver by explosion or with receptacle collecting material in bore


DEFINITION

Classification: 175/4

(under subclass 2) Subject matter directed to an explosive apparatus which includes or is combined with (1) a core receiving barrel or tube which is propelled into the formation by an explosive charge or (2) a receptacle or the like which is described as adapted to collect and remove a sample of the formation from the hole.

(1) Note. An apparatus having a receptacle or the like described as adapted to collect only fluid is included under this definition, as well as a receptacle adapted to collect solid formation material or both fluid and solid formation material.

SEE OR SEARCH CLASS

166, Wells,

264, for a process of sampling only fluid from a well, and including an explosive boring step.