Sealed and lubricated rock bit with air protected seal ring

Details Sealed and lubricated rock bit with air protected seal ring Sealed and lubricated rock bit with air protected seal ring

1980-08-11

1983-03-01

Pate, III, William F.

Boring or penetrating the earth

With storage means for bit lubricant carried by bit or shaft

With fluid pressure-actuated feed means

175339, 175371, E21B 1018

Patent

active

043752420

ABSTRACT:
An earth boring rock bit having a sealed bearing and pressure lubrication system for drilling the earth with air or gas as the circulating medium. An annular groove is formed in the vicinity of the seal and connected to the interior of the bit for cooling the ring and cleaning debris from the area of the ring. The air pressure inside the bit is utilized to bias a movable element in the system to urge lubricant to the bearing.

REFERENCES:
patent: 3244459 (1966-04-01), Ortloff
patent: 3251634 (1966-05-01), Dareing
patent: 3365247 (1968-01-01), Ferrand
patent: 3463270 (1969-08-01), Lundstrom et al.
patent: 3656764 (1972-04-01), Robinson
patent: 3719241 (1973-03-01), Bell
patent: 3921735 (1975-11-01), Dysart
patent: 3952815 (1976-04-01), Dysart
patent: 4098358 (1978-07-01), Klima
patent: 4102419 (1978-07-01), Klima
patent: 4172562 (1979-10-01), Nederveen
patent: 4183417 (1980-01-01), Levefelt
patent: 4287957 (1981-09-01), Evans
patent: 4298079 (1981-11-01), Norlande

Affiliated with

Also associated with

Rating

Sealed and lubricated rock bit with air protected seal ring does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sealed and lubricated rock bit with air protected seal ring, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sealed and lubricated rock bit with air protected seal ring will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1457995