CORE CATCHER Russian patent published in 1995 - IPC

Abstract RU 2029062 C1

FIELD: drilling equipment. SUBSTANCE: core catcher has body with ports 2, toggles 3 and shafts 4 installed in holes 5 and 6, respectively, in body and bosses 7 of toggle 4. Shank 8 of toggle 7 has recess 9 in which connector 10 is located between ports 9 in which connector 10 is located between ports 2 of body. EFFECT: higher strength of toggles of core catcher, increased diameter and yield of core. 3 dwg

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RU 2 029 062 C1

Authors

Surkov D.V.

Ehdel'Man Ja.A.

Nikolaev V.F.

Dates

1995-02-20—Published

1991-06-28—Filed