External refacing indicator for a tool joint

Details External refacing indicator for a tool joint External refacing indicator for a tool joint

2005-05-24

2005-05-24

Bochna, David E. (Department: 3679)

Pipe joints or couplings

Particular interface

Tapered

C285S093000, C285S332100

Reexamination Certificate

active

06896300

ABSTRACT:
Makeup plates on the abutting surfaces of a tool joint pin and a tool joint box are provided. The makeup plates are recessed in a short distance from the outer diameter of the tool joint elements, such that when the joint is made up, the makeup plate develops an easily visible gap between the tool elements. In this way, a quick determination may be made, without measurement, as to whether the joint can be refaced, or require re-machining.

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