Ultrasonically sealed side seam on cup

Details Ultrasonically sealed side seam on cup Ultrasonically sealed side seam on cup

1986-09-11

1987-12-29

Marcus, Stephen

Envelopes, wrappers, and paperboard boxes

Paperboard box

Box material includes a coating or a nonpaperboard...

229 31, 229 48T, B65D 328

Patent

active

047155272

ABSTRACT:
A container comprising a tubular body part having a longitudinal lapped side seam and a bottom part attached to one end thereof, characterized in that the overlapping portions of the side seam are adhered by ultrasonic bonding to provide a bonded area longitudinally of the side seam of predetermined transverse width throughout the major portion of its length and a bonded area at the top of greater transverse width which is at least several millimeters in length longitudinally of the seam.

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patent: 4187768 (1980-02-01), Suzuki
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