Blow-out preventor make/break tool

Details Blow-out preventor make/break tool Blow-out preventor make/break tool

2008-05-06

2008-05-06

Gay, Jennifer H. (Department: 3676)

Wells

Processes

Assembling well part

C166S377000, C166S379000

Reexamination Certificate

active

11031409

ABSTRACT:
The present invention provides a tubular make/break tool having a body section and a center weldment positioned within the body section. There are at least two linear actuators in opposed orientation disposed in the body section and the linear actuators are connected to the center weldment in a manner to impart torque thereto.

REFERENCES:
patent: 3507174 (1970-04-01), Dickmann
patent: 4291762 (1981-09-01), Gudgel
patent: 4294314 (1981-10-01), Miyagishima et al.
patent: 4732061 (1988-03-01), Dinsdale
patent: 6793021 (2004-09-01), Fanguy
Diagram of Varco PH-85 pipe handling device on sale in the U.S. prior to Jan. 1, 2003.
Description of Varco HT and API 7K DB Tong manual tongs on sale in the U.S. prior to Jan. 1, 2003.

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