Ultrasonic welding method for sealing a thermoplastic cap to the

Details Ultrasonic welding method for sealing a thermoplastic cap to the Ultrasonic welding method for sealing a thermoplastic cap to the

1982-03-22

1983-10-25

Witshyn, Michael G.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

53485, 53489, 156 731, 1565802, 264 23, B29C 2708, B65B 728

Patent

active

044117205

ABSTRACT:
A method for sealing the neck of a thermoplastic container to a thermoplastic cap superposed upon the neck and the cap having a lateral edge extending beyond the periphery of the neck using an ultrasonic welding apparatus includes an ultrasonic resonator having a domical internal cavity in its output end for reshaping the lateral edge of the cap in order to form a peripheral bead along the interface between the cap and the neck of the container.

REFERENCES:
patent: 3795558 (1974-03-01), Dabney et al.
patent: 3824138 (1974-07-01), Karobath et al.
patent: 4219912 (1980-09-01), Adams
patent: 4259419 (1981-03-01), Uba et al.

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