Drill sampling diversion unit

Boring or penetrating the earth – With above-ground means for handling drilling fluid or cutting – Fluid or cuttings directing or receiving means engaging bore...

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E21B 4902

Patent

active

040760855

ABSTRACT:
A self-centralizing sealed diverter for aiding the surface collection of underground samples including a rigid casing driven into the ground to line a partially drilled hole, a rigid chamber mounted above and firmly but removably attached to the casing to receive drill samples, a sleeve fastened to the top of the chamber and including a stuffing box having a self-lubricating stuffing gland which lines the box, a journal removably mounted on the top of the sleeve for journalling a drill rod and for axially locating initially the stuffing gland, a casing including a bearing for aligning the rod with respect to a drill head, a protective top-plate attached to the bearing casing, and a pressed-in bush interposed between the rod and the bearing.

REFERENCES:
patent: 2145192 (1939-01-01), Pennington
patent: 3173502 (1965-03-01), Overby
patent: 3841421 (1974-10-01), Matsushita
patent: 3952858 (1976-04-01), Watts
patent: 3991838 (1976-11-01), Clark

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