Pressure venting O-ring bearing seal for rock bits

Details Pressure venting O-ring bearing seal for rock bits Pressure venting O-ring bearing seal for rock bits

1979-09-24

1981-02-03

Footland, Lenard A.

Cutlery

308 361, F16C 3374

Patent

active

042484847

ABSTRACT:
In conventional rock bits which utilize a lubrication system, a pressure venting function for a radial type O-ring bearing seal is accomplished by allowing the excessive lubricant pressure buildup within the rock bit to bulge the O-ring into a venting pocket or cavity located in the seal gland boss thus breaking the sealing contact and venting the excess pressure without significant loss or further contamination of the bearing lubricant with harmful fluids and abrasives.

REFERENCES:
patent: 3476195 (1969-11-01), Galle
patent: 3735825 (1973-05-01), Keller
patent: 4194795 (1980-03-01), Rife
patent: 4199156 (1980-04-01), Oldham et al.

Affiliated with

Also associated with

Rating

Pressure venting O-ring bearing seal for rock bits does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pressure venting O-ring bearing seal for rock bits, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure venting O-ring bearing seal for rock bits will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-547904