Deflection swivel and method

Details Deflection swivel and method Deflection swivel and method

2007-01-23

2007-01-23

Bagnell, David (Department: 3672)

Boring or penetrating the earth

With tool shaft detail

C166S344000, C166S355000, C285S261000, C285S271000, C285S263000

Reexamination Certificate

active

10708752

ABSTRACT:
A deflectable in-line swivel that permits axial deflection of a tubular string is presented. The in-line swivel is preferably constructed as a ball and socket design whereby the ball of a swivel mandrel is permitted to articulate within a socket of a retainer sub. The system preferably includes a thrust bearing to allow the tensile loads to be carried across the swivel.

REFERENCES:
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patent: 4648469 (1987-03-01), Biggs et al.
patent: 4732223 (1988-03-01), Schoeffler et al.
patent: 5423389 (1995-06-01), Warren et al.
patent: 5996712 (1999-12-01), Boyd
patent: 6244345 (2001-06-01), Helms
patent: 6553825 (2003-04-01), Boyd

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