Cutter assemblies for rotary drill bits

Boring or penetrating the earth – Bit or bit element – Specific or diverse material

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

175432, 761082, E21B 1046

Patent

active

057203571

ABSTRACT:
A cutter assembly for a rotary drag-type drill bit includes a preform cutting element comprising a front facing table of polycrystalline diamond bonded to a tungsten carbide substrate, the cutting element being mounted on a tungsten carbide carrier which is received in a socket in the body of the drill bit. The carrier comprises a sector-shaped portion of a disc, and the cutting element is bonded to one of the straight edge surfaces of the carrier, adjacent the apex of the sector shape. The side surfaces of the carrier taper inwardly, as viewed in cross-section, as they extend towards the curved edge surface of the carrier.

REFERENCES:
patent: 4047583 (1977-09-01), Dyer
patent: 4823892 (1989-04-01), Fuller
patent: 4972912 (1990-11-01), Keshavan
patent: 4991670 (1991-02-01), Fuller et al.
patent: 5007493 (1991-04-01), Coolidge et al.
patent: 5303785 (1994-04-01), Duke
patent: 5314033 (1994-05-01), Tibbitts
patent: 5348109 (1994-09-01), Griffin
patent: 5505273 (1996-04-01), Azar 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

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

Rate now

     

Profile ID: LFUS-PAI-O-1869898

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