Knuckle-swivel for drilling wells

Details Knuckle-swivel for drilling wells Knuckle-swivel for drilling wells

2007-05-15

2007-05-15

Stodola, Daniel P. (Department: 3679)

Joints and connections

With distinct fluid or article handling or directing feature

External reservoir

Reexamination Certificate

active

10416190

ABSTRACT:
A knuckle-swivel (10) is used with well drilling equipment for protecting helical wound line62, which may be wire rope, cable and/or strand, against torsional forces and also providing for angular displacement of sinker bars or other tools during wireline strip over operations to minimize interference with rig equipment (80) when pulling pipe or tools64from a well head.

REFERENCES:
patent: 2921809 (1960-01-01), Kogstrom
patent: 2954993 (1960-10-01), Scheublein, Jr. et al.
patent: 2957714 (1960-10-01), Langen
patent: 4128127 (1978-12-01), Taylor
patent: 5468153 (1995-11-01), Brown et al.
patent: 00/52296 (2000-09-01), None

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