Flow-through mule shoe sub

Details Flow-through mule shoe sub Flow-through mule shoe sub

1977-07-01

1978-12-19

Novosad, Stephen J.

Wells

Miscellaneous

175 45, 175320, 285 92, E21B 1700, E21B 4700

Patent

active

041301625

ABSTRACT:
A sleeve for supporting a radially inwardly extending key disposed within the interior of a drilling sub is characterized by a substantially cylindrical body member having a plurality of ribs extending either radially inwardly or radially outwardly therefrom to define a plurality of fluid conducting channels. A plurality of threads is provided on the radially outer surface of the sleeve adjacent the first axial end thereof. A radially extending notch divides the threads into a first and second set of threads. With the first and second set of threads engaged with a plurality of threads disposed on the interior of the sub, a threaded bolt is disposed in an axially extending bore provided within the sleeve, to thereby lock the sleeve in position within the sub.

REFERENCES:
patent: 2197227 (1940-04-01), Strength
patent: 3052309 (1962-09-01), Eastman
patent: 3072070 (1963-01-01), Marcell
patent: 3765494 (1973-10-01), Kielman Jr.

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