Variable diameter earth boring bit

Details Variable diameter earth boring bit Variable diameter earth boring bit

E - Fixed Constructions

21

D

262/7

E21D 1/06 (2006.01) E21B 10/10 (2006.01) E21B 10/24 (2006.01) E21B 10/28 (2006.01)

Patent

CA 1185276

ABSTRACT OF THE DISCLOSURE An earth boring bit is shown of the type used to cut a shaft in the earth. The earth boring bit has a central bit body which is adapted to be driven to cut a shaft and which has an outer conical surface thereon. An outer ring segment carried on the central bit body has a conical surface for matingly engaging the central bit body conical surface whereby torque transmitted to the outer ring is transmitted through the mating conical surfaces to drive the central bit body to cut a shaft. The mating conical surfaces are preloaded to assure drivable contact between the surfaces. The effective cutting diameter of the earth boring bit can be varied by interchanging the outer ring segment.

419861

Affiliated with

Also associated with

Rating

Variable diameter earth boring 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 Variable diameter earth boring bit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable diameter earth boring bit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1257616