Drill bit with suction jet means

Details Drill bit with suction jet means Drill bit with suction jet means

1978-01-26

1980-12-16

Purser, Ernest R.

Boring or penetrating the earth

Bit or bit element

Rolling cutter bit or rolling cutter bit element

175 67, E21B 1018

Patent

active

042390877

ABSTRACT:
This drill bit comprises a plurality of rollers provided with cutting teeth or inserts.
At least one upwardly directed eduction jet is created and the bit comprises at least one nozzle located between two adjacent rollers and creating at least two fluid jets respectively directed towards these two adjacent rollers.

REFERENCES:
patent: 3070182 (1962-12-01), Runte
patent: 3111179 (1963-11-01), Albers et al.
patent: 3563324 (1971-02-01), Lauber
patent: 3945446 (1976-03-01), Ostertag et al.
patent: 4022285 (1977-05-01), Frank

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