B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
93/1, 93/7
B29C 65/08 (2006.01) B29C 65/00 (2006.01) B65B 51/22 (2006.01)
Patent
CA 1272632
ABSTRACT An ultrasonic heatsealing mechanism and process for securing portions of a carton blank to at least one flanged container in which the surfaces to be secured are susceptible to ultrasonic heatsealing. The mechan- ism comprises a resiliently mounted ultrasonic horn and a series of movable counterpart elements spaced from an adjacent tip of the horn so that the counterpart elements move relative to the end of the horn one after the other. Means are provided to move the container and blank so that overlapping surfaces to be heatsealed together are passed with the counterpart elements longitudinally with respect to the horn tip means being provided to activate the horn at least when the sur- faces and at least one counterpart element are present together adjacent said end of the horn so that heat- sealing can occur and causing the horn to move resil- iently so that a constant gap between the tip of the horn and that counterpart element is maintained subst- antially constant during the heatsealing process.
531785
Ridout & Maybee Llp
The Mead Corporation
LandOfFree
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