Mounting means for cutting elements in drag type rotary drill bi

Details Mounting means for cutting elements in drag type rotary drill bi Mounting means for cutting elements in drag type rotary drill bi

1987-06-12

1989-05-16

Bilinsky, Z. R.

Boring or penetrating the earth

Bit or bit element

Magnetized or with magnet

175410, 408144, 408145, E21B 1046

Patent

active

048301230

ABSTRACT:
A drag type rotary drill bit (10) having mounted on its lower face (22) a rigid integral holder (30) for a plurality of polycrystalline diamond compact (PDC) cutting elements (42) secured to a planar face (60) of the holder (30). An upper projecting tapered end portion (71) of the holder (30) defines tapered surfaces (72, 73) with the lower tapered surface (72) extending at a relatively large clearance angle (B) to provide a relatively small wear flat surface on the holder (30).

REFERENCES:
patent: 4156329 (1979-05-01), Daniels et al.
patent: 4225322 (1980-09-01), Knemeyer
patent: 4303136 (1981-12-01), Ball
patent: 4429755 (1984-02-01), Williamson
patent: 4440246 (1984-04-01), Jurgens
patent: 4442909 (1984-04-01), Radtke et al.
patent: 4452324 (1984-06-01), Jurgens
patent: 4499958 (1985-02-01), Radtke et al.
patent: 4505342 (1985-03-01), Barr et al.
patent: 4533004 (1985-08-01), Ecer
patent: 4682663 (1987-07-01), Daly et al.
"Compax.RTM. Diamond Drilling Update", Specialty Materials Division-General Electric Company, Jun. 1975.
"Field Test of an 81/2 Inch Polycrystalline Diamond Blade Bit in Colombia", for GeoTech, by D. S. Rowley, Drilling Research Laboratory, Dec. 1985.

Affiliated with

Also associated with

Rating

Mounting means for cutting elements in drag type rotary drill bi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mounting means for cutting elements in drag type rotary drill bi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mounting means for cutting elements in drag type rotary drill bi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2315593