Method for welding a packing band of thermoplastic resin and a welded band resulting therefrom
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United States of America Patent
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-
Aug 6, 1996
Grant Date -
N/A
app pub date -
Apr 1, 1993
filing date -
Apr 3, 1992
priority date (Note) -
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status (Latency Note)
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Abstract
A packing band having a superior weld is disclosed. The band can be made of a stretched thermoplastic resin having a flat cross section. The weld is formed by overlapping ends of the band extending in the lengthwise direction thereof. The weld portion of the band includes a plurality of welded sections separated by at least one non-welded section along the lengthwise direction of the band. The welding of the packing band can be accomplished by overlapping parts of the band in a lengthwise direction thereof; melting discontinuous portions of the parts in a pattern along the length of the band parts of a melted portion, an unmelted portion and a melted portion; and then pressing the parts together so that the melted and unmelted portions of the parts contact each other and form a weld.
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