Earth-boring bit with improved cutting structure

Details Earth-boring bit with improved cutting structure Earth-boring bit with improved cutting structure

1995-01-17

1996-08-06

Neuder, William P.

Boring or penetrating the earth

Bit or bit element

Rolling cutter bit or rolling cutter bit element

175374, E21B 1016

Patent

active

055424856

ABSTRACT:
An earth-boring bit has a bit body and at least one cutter rotatably secured to the bit body. The cutter has a cutter shell surface including a gage surface and a heel surface. A plurality of cutting elements inserts are arranged in generally circumferential rows on the cutter. At least one chisel-shaped cutting element is secured to the gage surface. The chisel-shaped cutting element has a pair of surfaces converging to define a circumferential crest and is tilted toward the heel surface such that a line drawn through the center of the cutting element and its crest defines an acute angle of between about 15 and 75 degrees with the gage surface of the cutter.

REFERENCES:
patent: 2804282 (1957-08-01), Spengler Jr., et al.
patent: 2990025 (1961-06-01), Talbert et al.
patent: 3401759 (1968-09-01), White
patent: 3952815 (1976-04-01), Dysart
patent: 4832139 (1989-05-01), Minikus et al.
patent: 4940099 (1990-07-01), Deane et al.
patent: 5201376 (1993-04-01), Williams
patent: 5287936 (1994-02-01), Grimes et al.
patent: 5351768 (1994-10-01), Scott et al.
patent: 5353885 (1994-10-01), Hooper et al.
patent: 5421424 (1995-06-01), Portwood et al.
European Search Report dated Sep. 6, 1995.

Affiliated with

Also associated with

Rating

Earth-boring bit with improved cutting structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Earth-boring bit with improved cutting structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Earth-boring bit with improved cutting structure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2185501