Grease pump for sealed bearing rotary cone rock bits

Details Grease pump for sealed bearing rotary cone rock bits Grease pump for sealed bearing rotary cone rock bits

1983-08-08

1985-02-26

Leppink, James A.

Boring or penetrating the earth

With storage means for bit lubricant carried by bit or shaft

Rotation of bit actuates lubricant feed means

384 93, E21B 1024

Patent

active

045013381

ABSTRACT:
A positive displacement grease pump apparatus is disclosed to circulate a lubricating grease from a grease reservoir system, formed within a body of a sealed bearing rotary cone rock bit. The relatively viscous grease is positively circulated to and from the reservoir through bearings defined between a rotary cone and its respective journal bearing extending from the rock bit body.

REFERENCES:
patent: 1487319 (1924-03-01), Duda
patent: 2174102 (1939-09-01), Catland
patent: 3244459 (1966-04-01), Ortloff
patent: 3841422 (1974-10-01), Crow
patent: 4181185 (1980-01-01), Keller et al.
patent: 4183416 (1980-01-01), Walters

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