Ultrasonic heatsealing for securing carton blanks to articles in

Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor

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Details

53379, 53488, 156 731, 156216, 1565801, 1565802, 493102, B29C 6508, B32B 3120

Patent

active

047509554

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 mechanism 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 surfaces 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 resiliently so that a constant gap between the tip of the horn and that counterpart element is maintained substantially constant during the heatsealing process.

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patent: 4618516 (1986-10-01), Sager

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