Rotary drill bit

Details Rotary drill bit Rotary drill bit

1975-12-23

1977-03-08

Peters, Joseph F.

Cutlery

F16C 1900

Patent

active

040109852

ABSTRACT:
A rotary drill bit having a bit head and roller cutters mounted thereon, wherein each roller cutter is rotatably mounted upon a shaft fixed at one end to the bit head, the shaft being provided with an annular formation having a spherical outer surface thereon, forming the bearing surface of the shaft. The roller cutter is provided with an inner bearing surface in bearing engagement with that of the shaft and of corresponding configuration.

REFERENCES:
patent: 3480341 (1969-11-01), Hickernell
patent: 3620580 (1971-11-01), Cunningham

Affiliated with

Also associated with

Rating

Rotary drill bit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rotary drill bit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary drill bit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1403359