Method for testing undercut on the inner diameter of pipe welds

Details Method for testing undercut on the inner diameter of pipe welds Method for testing undercut on the inner diameter of pipe welds

2008-07-29

2008-07-29

Shaw, Clifford C (Department: 1793)

Electric heating

Metal heating

By arc

Reexamination Certificate

active

07405377

ABSTRACT:
A method and apparatus of comparing two or more welding flux systems to determine which flux system results in the smallest incidence of undercut about a weld bead in an inner diameter of a pipe.

REFERENCES:
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patent: 4877940 (1989-10-01), Bangs
patent: 4920249 (1990-04-01), McLaughlin et al.
patent: 6024273 (2000-02-01), Ludewig et al.
patent: 6392193 (2002-05-01), Mallenahalli et al.
patent: 2003/0234239 (2003-12-01), Lee
patent: 07-214316 (1995-08-01), None
patent: 7-214316 (1995-08-01), None
Machine Generated English Translation of JP7-214316A.
International Search Report dated Feb. 5, 2008.

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