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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 |
| 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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