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Class Information
Number: 175/236
Name: Boring or penetrating the earth > With means movable relative to tool below ground to stop flow toward bore bottom > In sample receiver removable through below-ground tool shaft
Description: Apparatus in which the movable means is located in a means to receive a sample of the formation (undisturbed core, cuttings, etc.), and said sample receiving means is adapted to be taken above ground while the shaft which drives the tool remains in the borehole.










Patents under this class:

Patent Number Title Of Patent Date Issued
8668029 Sonic latch mechanism Mar. 11, 2014
8261857 Core barrel sonic latch mechanism and methods of sonic drilling using the same Sep. 11, 2012
6820703 Locking device for a wire line core drilling system and a method for core drilling Nov. 23, 2004
6644424 Core barrel Nov. 11, 2003
6568487 Method for fast and extensive formation evaluation using minimum system volume May. 27, 2003
6425449 Up-hole pump-in core barrel apparatus Jul. 30, 2002
6216804 Apparatus for recovering core samples under pressure Apr. 17, 2001
6029758 Retractable core barrel valving apparatus Feb. 29, 2000
6019181 Core drilling latch assembly Feb. 1, 2000
5934393 Core barrel apparatus Aug. 10, 1999
5799742 Core drilling latch assembly Sep. 1, 1998
5450913 Continuous soil sampling system and method Sep. 19, 1995
5439065 Rotary sidewall sponge coring apparatus Aug. 8, 1995
5020612 Wire line core drilling apparatus Jun. 4, 1991
4825963 High-pressure waterjet/abrasive particle-jet coring method and apparatus May. 2, 1989
4800969 Fast descent core barrel apparatus Jan. 31, 1989
4765414 Corebarrel Aug. 23, 1988
4646843 Retrieval device Mar. 3, 1987
4580643 Adjustable bearing section core barrel Apr. 8, 1986
4502553 Sponge coring apparatus with reinforced sponge Mar. 5, 1985
4466497 Wireline core barrel Aug. 21, 1984
4452321 Device in core barrels Jun. 5, 1984
4428602 Inner tube element for a double tube coring apparatus and process for the manufacture of this tube element Jan. 31, 1984
4317490 Apparatus and method for obtaining a core at in situ pressure Mar. 2, 1982
3951219 Drill tool comprising a core barrel and a removable central portion Apr. 20, 1976











 
 
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