Method and apparatus for retaining a down-hole fluid motor...

Details Method and apparatus for retaining a down-hole fluid motor... Method and apparatus for retaining a down-hole fluid motor...

2006-06-20

2006-06-20

Dang, Hoang (Department: 3672)

Boring or penetrating the earth

Processes

C175S107000, C175S320000

Reexamination Certificate

active

07063175

ABSTRACT:
A retaining apparatus is provided for preventing the separation and loss of a down-hole drive motor and associated drill bit from the drill string due to gyroscopic precession of the motor housing resulting from counter torque produced by the drill bit. The retaining apparatus includes a collet, an expander with interchangeable nozzles and a fluid bypass flange.

REFERENCES:
patent: 2167019 (1939-07-01), Yost
patent: 3047079 (1962-07-01), Wepsala, Jr.
patent: 3077937 (1963-02-01), Tiraspolsky et al.
patent: 3159222 (1964-12-01), Hammer et al.
patent: 4260030 (1981-04-01), Fox
patent: 5165492 (1992-11-01), Beasley
patent: 6540020 (2003-04-01), Falgout, Sr.
patent: 2002/0166700 (2002-11-01), Gillis et al.

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