Rotary drill bits

Boring or penetrating the earth – Bit or bit element – Magnetized or with magnet

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

175410, E21B 1046

Patent

active

048238929

ABSTRACT:
A rotary drill bit for use in drilling or coring deep holes in subsurface formations comprises a bit body having a shank for connection to a drill string and a plurality of cutting elements mounted at the surface of the bit body. Each cutting element is bonded to a stud which is received in a socket in the bit body. Spaced rearwardly of each cutting element is a separate abrasion element comprising a stud which is received in a socket in the bit body and is impregnated with particles of natural or synthetic diamond. The abrasion element provides a back-up in the event of failure or excessive wear of the cutting element and its spacing from the cutting element prevents the damaging transfer of heat from the abrasion element to the cutting element. The cooling may be enhanced by providing a channel for drilling fluid between the cutting element and abrasion element.

REFERENCES:
patent: 3938599 (1976-02-01), Horn
patent: 4512426 (1985-04-01), Bidegaray
patent: 4554986 (1985-11-01), Jones
patent: 4570726 (1986-02-01), Hall
patent: 4681174 (1987-07-01), Aubakirov et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

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

Rate now

     

Profile ID: LFUS-PAI-O-1189306

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.