Indexing tool for use in earth borehole drilling and testing

Details Indexing tool for use in earth borehole drilling and testing Indexing tool for use in earth borehole drilling and testing

1979-10-15

1981-03-17

Leppink, James A.

Wells

Detents or clutches

166240, 285303, 175321, E21B 2300, F16H 2702

Patent

active

042561795

ABSTRACT:
An index mandrel body, which connects with a well string in a borehole, is received by a tubular body have a plurality of splines, which slidably engage teeth on an indexing sleeve rigidly affixed inside the mandrel said splines receiving seatable lands rigidly affixed inside the tubular body, said lands being so spaced as to be able to pass between the splines so that the body becomes fully rotatable, said invention being adaptable for use in compression or tension application to off shore drilling, as well as on land drilling.

REFERENCES:
patent: 3082831 (1963-03-01), Le Bus, Sr.
patent: 3233676 (1966-02-01), Lynes
patent: 3265135 (1966-08-01), Wilkinson
patent: 3578078 (1971-05-01), Shillander
patent: 3703104 (1972-11-01), Tamplen

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