Erosion resistant rock drill bit

Details Erosion resistant rock drill bit Erosion resistant rock drill bit

1985-12-23

1988-03-15

Novosad, Stephen J.

Boring or penetrating the earth

Bit or bit element

With fluid conduit lining or element

175400, E21B 1060

Patent

active

047306823

ABSTRACT:
Disclosed herein is an erosion resistant down hole rock drill bit which utilizes a radial distribution of carbide cutter bits or buttons about the exhaust hole. This minimizes carbide wash or removal of base metal which retains the carbide and thereby extends bit life.

REFERENCES:
patent: Re29300 (1977-07-01), Bender
patent: 3955635 (1976-05-01), Skidmore
patent: 4069880 (1978-01-01), Johnstone et al.
patent: 4151889 (1979-05-01), Lister
patent: 4299298 (1981-11-01), McEnery et al.
patent: 4440244 (1984-04-01), Wiredal

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