Replaceable bit nozzle

Details Replaceable bit nozzle Replaceable bit nozzle

1984-10-02

1986-08-05

Levy, S.

Boring or penetrating the earth

Bit or bit element

Rolling cutter bit or rolling cutter bit element

175393, 175422R, E21B 1060

Patent

active

046037500

ABSTRACT:
A drilling fluid nozzle for an earth boring bit is formed entirely of tungsten carbide, having hard-ground threads on its exterior for securing in the bit passage. The nozzle has an upwardly facing shoulder located below the threads which sealingly engages a downwardly facing shoulder formed in the bit passage. An O-ring seal is located above the threads.

REFERENCES:
patent: 2108955 (1938-02-01), Zublin
patent: 2201569 (1940-05-01), Zublin
patent: 2884227 (1959-04-01), Hjalsten
patent: 3220754 (1965-11-01), Mori
patent: 3336614 (1967-08-01), Benjamin
patent: 3645346 (1972-02-01), Miller et al.
patent: 4193463 (1980-03-01), Evans
patent: 4301877 (1981-11-01), Cloud
patent: 4306627 (1981-12-01), Cheung et al.
patent: 4381825 (1983-05-01), Radtke
patent: 4400024 (1983-08-01), Ratcliff et al.
patent: 4499958 (1985-02-01), Radtke et al.

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