Rotary cone cutter

Details Rotary cone cutter Rotary cone cutter

1980-07-07

1982-06-22

Purser, Ernest R.

Boring or penetrating the earth

Bit or bit element

Rolling cutter bit or rolling cutter bit element

175366, 285421, 175412, E21B 1020, E21B 1022

Patent

active

043357946

ABSTRACT:
A multi-cone roller bit with a central pot member is disclosed, having releasably secured legs carrying rolling cutters mounted on the pot. The legs have an upper portion which can be releasably secured in a recessed central portion of the pot and an abutment region which contacts the pot. A tongue and groove arrangement holds the leg and pot from relative movement with one another, and a central tapered plug is reciprocably movable so as to clamp and unclamp the legs to the pot.

REFERENCES:
patent: 1143274 (1915-06-01), Hughes
patent: 1843136 (1932-02-01), Lebus
patent: 1874070 (1932-08-01), Wellensiek
patent: 2013838 (1935-09-01), Pickin
patent: 3040825 (1962-06-01), Williams
patent: 3139946 (1964-07-01), Bronson
patent: 3186501 (1965-06-01), Warburton
patent: 3327794 (1967-06-01), Creel
patent: 3339648 (1967-09-01), Blanton

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