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Class Information
Number: 175/248
Name: Boring or penetrating the earth > With means movable relative to tool to receive, retain, or sever undisturbed core > Receiver removable through below-ground tool shaft > Core forming cutting edge or element on receiver
Description: Apparatus in which the core receiver is provided with a cutting edge or element which is adapted to participate in the forming of a core of undisturbed material.

Patents under this class:

Patent Number Title Of Patent Date Issued
8613330 Coring tools and related methods Dec. 24, 2013
8453766 Hydrocarbon formation core protection and transportation apparatus Jun. 4, 2013
6695078 Large diameter sampler for gathering an undisturbed sample Feb. 24, 2004
6681872 In situ reactor Jan. 27, 2004
6659204 Method and apparatus for recovering core samples under pressure Dec. 9, 2003
6230825 Apparatus for recovering core samples under pressure May. 15, 2001
5601152 Vibrator core drilling apparatus Feb. 11, 1997
5474140 Soil sampling probe Dec. 12, 1995
5211715 Coring with tubing run tools from a producing well May. 18, 1993
5188190 Method for obtaining cores from a producing well Feb. 23, 1993
5052502 Apparatus for directional coring Oct. 1, 1991
4878549 Wire line core barrel Nov. 7, 1989
4825963 High-pressure waterjet/abrasive particle-jet coring method and apparatus May. 2, 1989
4679636 Method and apparatus for coring rock Jul. 14, 1987
4558749 Anti-jamming core barrels Dec. 17, 1985
4002213 Down-the-hole motor for rotary drill rod and process for drilling using the same Jan. 11, 1977

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