Electric heating – Metal heating – By arc
Reexamination Certificate
2007-12-04
2007-12-04
Tran, Len (Department: 1725)
Electric heating
Metal heating
By arc
C219S076140
Reexamination Certificate
active
11048730
ABSTRACT:
Welding material is deposited automatically in the annular facing. A welding torch is causes to rotate about an axis of rotation that extends in a direction that is radial relative to the spherical wall and that passes through a point of the concave inside surface of the spherical wall in the central portion of the annular facing. Simultaneously with the welding torch being caused to rotate about the axis of rotation, it is displaced in a direction perpendicular to the axis of rotation in controlled manner, and the position of the welding torch in a direction parallel to the of rotation is also controlled so that the electrode of the welding torch describes an elliptical path and ensures that the welding material is deposited in the annular facing in the form of an elliptical bead.
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Prouteau Francois
Remond Etienne
Connolly Bove & Lodge & Hutz LLP
Framatome ANP
Tran Len
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