Rotary earth boring drill bit with centrifugal lubrication syste

Details Rotary earth boring drill bit with centrifugal lubrication syste Rotary earth boring drill bit with centrifugal lubrication syste

1982-03-29

1984-05-08

Purser, Ernest R.

Boring or penetrating the earth

With storage means for bit lubricant carried by bit or shaft

Rotation of bit actuates lubricant feed means

175228, 384 93, E21B 1022

Patent

active

044469330

ABSTRACT:
A drilling bit for drilling earthen material such as an oilwell rotary cone drilling bit which includes means for centrifugally providing lubricant to the drill bit cone bearing from a storage cavity. A storage cavity is provided for lubricant for the drill bit bearings, means being provided for forcing the lubricant from this cavity through channels to such bearings in response to the centrifugal force generated with the rotation of the bit.

REFERENCES:
patent: 2906504 (1959-09-01), Parks
patent: 3244459 (1966-04-01), Ortloff
patent: 3841422 (1974-10-01), Crow
patent: 4167219 (1979-09-01), McQueen
patent: 4183416 (1980-01-01), Walters
patent: 4223749 (1980-09-01), Bodine et al.

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