Core barrel adjusting system

Details Core barrel adjusting system Core barrel adjusting system

1989-12-15

1991-06-25

Neuder, William P.

Boring or penetrating the earth

With means movable relative to tool to receive, retain, or...

Receiver removable through below-ground tool shaft

285 93, 285298, E21B 2502

Patent

active

050258729

ABSTRACT:
The present invention comprises a novel core drilling tool system which allows for less stressful extended axial settings and adjustments in a core barrel environment. More particularly, the present invention discloses the formation of the setting device as a separate spacer apparatus which provides a setting method independent of the suspension of the inner unit in the outer housing of a core drilling tool thereby allowing for axial settings over a long adjustment path which are generally free of stress due to the weight of the inner unit.

REFERENCES:
patent: 4300643 (1981-11-01), Lambot
patent: 4463460 (1984-08-01), Arnold et al.

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