Drill bit and method of use thereof

Details Drill bit and method of use thereof Drill bit and method of use thereof

1983-01-17

1985-04-16

Novosad, Stephen J.

Boring or penetrating the earth

Processes

29511, 76101A, 175329, 175354, 175374, E21B 1050, E21B 1056

Patent

active

045110069

ABSTRACT:
The cutting edge of a bit of a rotary drill comprises an agglomerate of natural or synthetic diamond mounted at the free end of a shank freely rotatable in a socket in the body. Preferably the agglomerate and the free end of the shank are cold swaged together and preferably a resilient spring is interposed about the shank between the body and the free end.

REFERENCES:
patent: 1106860 (1914-08-01), Bayton
patent: 1790613 (1931-01-01), Gildersleeve et al.
patent: 3720273 (1973-03-01), McKenry et al.
patent: 4201421 (1980-05-01), Den Besten et al.
patent: 4222446 (1980-09-01), Vasek
patent: 4247150 (1981-01-01), Wrulich et al.
patent: 4350215 (1982-09-01), Radtke
patent: 4351401 (1982-09-01), Fielder
patent: 4359335 (1982-11-01), Garner

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