Reamer stabilizer for rock drills

Details Reamer stabilizer for rock drills Reamer stabilizer for rock drills

1979-02-13

1980-10-07

Leppink, James A.

Boring or penetrating the earth

With tool shaft detail

Shaft carried guide or protector

175347, E21B 922, E21C 1700

Patent

active

042262917

ABSTRACT:
A reamer and stabilizer assembly for rock drills having a substantially cylindrical body provided with a threaded end socket for connection to a drill stem, the body having circumferentially spaced longitudinally extending recesses for receiving reaming and stabilizer rollers mounted on axles extending parallel to the axis of the body, each reamer and roller assembly being removably retained in its recess by a keeper pin which can be inserted or retracted through a keeper pin passage opening into the threaded socket and into a longitudinal passage through each axle.

REFERENCES:
patent: 2122763 (1938-07-01), Smith, Jr.
patent: 2189030 (1940-02-01), Harrington
patent: 3658141 (1972-04-01), Schumacher, Jr.
patent: 3705750 (1972-12-01), Crow

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