Method and apparatus for ultrasonic bonding of coupling elements

Details Method and apparatus for ultrasonic bonding of coupling elements Method and apparatus for ultrasonic bonding of coupling elements

1980-03-12

1982-09-07

Wityshyn, Michael G.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

1565802, 228 1R, 264 23, 4251742, 425814, B29C 2708, B29D 500

Patent

active

043482457

ABSTRACT:
Successive portions of a continuous polymer filament are plasticized such as by localized heating with ultrasonic or thermal energy, and the plasticized portions are molded in one or more cavities to form articles such as slide fastener elements. Additionally there is disclosed the attachment of a thermoplastic slide fastener coupling element to the edge of a tape by surrounding the leg portions with walls of cavities in a pair of ultrasonic members and applying ultrasonic energy through energy directing projections located centrally within the cavities to the pair of legs to fuse the legs to the edge of the tape.

REFERENCES:
patent: 3639969 (1972-02-01), Potin et al.
patent: 3775815 (1973-12-01), Johnston et al.
patent: 3962007 (1976-06-01), Heimberger
patent: 4026974 (1977-05-01), Moertel et al.
patent: 4153489 (1979-05-01), Moertel et al.

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