Title:
Balanced turbodrill
United States Patent 2591488
Inventors:
Lloyd, Yost
Publication Date:
04/01/1952
Export Citation:
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Assignee:
SMITH CORP A O
CALIFORNIA RESEARCH CORP
Primary Class:
175/100
Other Classes:
173/73, 175/107, 415/196, 415/199.5, 415/903
International Classes:
E21B4/02; E21B4/00
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US Patent References:
2348047Mud turbine and method of assembling the same
1850403Mechanism for drilling angular channels
1727276Hydraulic rotary drill
1482702Fluid-operated well-drilling apparatus
0850196N/A
0782267N/A
0764498N/A
0671885N/A
0588820N/A
0546368N/A