Rock bit

Details Rock bit Rock bit

1976-06-07

1978-04-18

Purser, Ernest R.

Boring or penetrating the earth

Bit or bit element

Rolling cutter bit or rolling cutter bit element

175372, 308 82, E21B 908

Patent

active

040846490

ABSTRACT:
Rock bit for drilling holes in the earth's crust which can be connected to driving means and being provided with supports or rock bit legs in which rotatable cutting elements or cutter cones are journalled, wherein a rock bit support comprises a removable part to which the bearing outer race ring is connected, the support part being a regularly shaped spatial body having edges which, in the assembled position, are situated in boundary planes of the support or rock bit leg.

REFERENCES:
patent: 1792608 (1931-02-01), Reed
patent: 1961819 (1934-06-01), DeCosta
patent: 2065743 (1936-12-01), Reed
patent: 2075997 (1937-04-01), Reed
patent: 2151347 (1938-03-01), Fisher
patent: 2339161 (1944-01-01), Fermier

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