Reinforced rotary drill bit

Details Reinforced rotary drill bit Reinforced rotary drill bit

1990-10-29

1992-03-31

Melius, Terry Lee

Boring or penetrating the earth

Bit or bit element

Specific or diverse material

175415, E21B 1046

Patent

active

050999354

ABSTRACT:
A rotary drill bit for boring earth formations is provided which includes a main body portion of a hard metal matrix material and at least one protrusion or shoulder formed of the same matrix material. On the protrusion is mounted a cutting element. Means for reinforcing the protrusion are provided and extend between the main body portion of the bit and the protrusion. The reinforcements add impact strength to the bit and increase the resistance of the bit to cracking in areas supporting the cutting element.

REFERENCES:
patent: 4350215 (1982-09-01), Radtke
patent: 4382477 (1983-05-01), Barr
patent: 4570725 (1986-02-01), Matthias et al.
patent: 4624830 (1986-11-01), Barr
patent: 4667756 (1987-05-01), King et al.
patent: 4714120 (1987-12-01), King
patent: 4718505 (1988-01-01), Fuller

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