Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With work feeding or handling means
Patent
1979-06-12
1981-03-24
Wityshyn, Michael G.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With work feeding or handling means
156 66, 156463, 156499, 1565802, 425545, 425814, B29D 500
Patent
active
042578396
ABSTRACT:
A method of welding a row of interconnected thermoplastic coupling elements for slide fasteners at opposed leg portions of each coupling element with the use of an ultrasonic horn. The method comprises: pressing the opposed leg portions of the coupling elements against the ultrasonic horn on its opposite sides during the coupling elements are being fed at constant speed; concurrently with this pressing step, fusing the opposed leg portions of the coupling elements at their confronting inner surfaces by ultrasonically vibrating the ultrasonic horn in a direction parallel to the confronting inner surfaces; and pressing the opposed leg portions of the coupling elements, after the latter is disengaged from the ultrasonic horn, against each other so as to be united at the confronting inner surfaces that have been fused. An apparatus for carrying the above method into practice efficiently and accurately is also disclosed.
REFERENCES:
patent: 3376179 (1968-04-01), Balamuth
patent: 3713923 (1973-01-01), Laguerre
patent: 3953272 (1976-04-01), Webber
patent: 3962007 (1976-06-01), Heimberger
patent: 4025277 (1977-05-01), Monroe
patent: 4026756 (1977-05-01), Stanfield et al.
patent: 4033014 (1977-07-01), Manning
Akashi Shunji
Yoshida Hiroshi
Adams Bruce L.
Burns Robert E.
Lobato Emmanuel J.
Wityshyn Michael G.
Yoshida Kogyo K.K.
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