Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1984-12-03
1985-12-24
Wityshyn, Michael
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156 88, 156250, 156251, 156267, 156510, 156515, 1565801, 1565802, B29C 2708, B32B 3118
Patent
active
045604274
ABSTRACT:
An ultrasonic seal and cut method and apparatus comprises an ultrasonic sealing and cutting station which includes a horn adapted to be resonant at an ultrasonic frequency and an oppositely disposed anvil having a sealing surface and a cutting surface. As sheet material is passed through the station, the sheet material is cut and sealed in a marginal area adjacent to the cut. A substantially thermoplastic thread, either monofilament or multifilament, is fed together with the sheet material through the station in a position to cause the thread to fuse with the material in the marginal area. The provision of the thread permits the ultrasonic seal and cut method to be used for sheet material having a relatively low thermoplastic fiber content or exhibiting an open mesh weave, or being made of natural fibers.
REFERENCES:
patent: 567948 (1896-09-01), Bracher
patent: 3076252 (1963-02-01), Hofmann
patent: 3526554 (1970-09-01), Obeda
patent: 3679526 (1972-07-01), Horton
patent: 3874963 (1975-04-01), Barger
patent: 4097327 (1978-06-01), Calemard
patent: 4496407 (1985-01-01), Lowery, Sr. et al.
Branson Ultrasonics Corporation
Feig Philip J.
Steinberg Ervin B.
Wityshyn Michael
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