Hydraulic depth indicator for hydraulic drilling machines

Details Hydraulic depth indicator for hydraulic drilling machines Hydraulic depth indicator for hydraulic drilling machines

1979-12-05

1982-07-20

Myracle, Jerry W.

Measuring and testing

Borehole or drilling

Downhole test

173 21, E21B 4704

Patent

active

043399460

ABSTRACT:
A hydraulically operated earth boring machine, improved with a flowmeter and indicator to show the instantaneous and the greatest depth of the drilling tool.

REFERENCES:
patent: 3651871 (1972-03-01), Greene
patent: 3921447 (1975-11-01), Howard
patent: 4195699 (1980-04-01), Rogers et al.

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