Electric heating – Inductive heating – Metal working
Reexamination Certificate
2005-06-28
2005-06-28
Leung, Philip H. (Department: 3742)
Electric heating
Inductive heating
Metal working
C219S617000, C219S608000, C219S650000, C219S061300, C219S061500, C228S103000, C228S141100
Reexamination Certificate
active
06911632
ABSTRACT:
A method for controlling the edges (7, 7′) of a foil strip guided in a shaping funnel of a device producing tubular bodies from the foil strip by an overlapping weld seam using a guide wedge, the strip being then welded. According to the invention, after welding, the method consists in using a linear infrared sensor for measuring and evaluating a temperature profile perpendicular to the overlapping weld seam. In case of variation relative to the specific real profile, a signal is automatically transmitted to rotate the shaping funnel with the guide wedge, the welding being produced by the high frequency (HF) and the temperature profile being measured directly after welding.
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Aisapack Holding SA
Collard & Roe P.C.
Leung Philip H.
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