Method and apparatus for ultrasonic sealing

Details Method and apparatus for ultrasonic sealing Method and apparatus for ultrasonic sealing

1983-12-22

1985-08-13

Wityshyn, Michael

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With bending, folding, winding, or wrapping means

53479, 53576, 156494, 156498, 156510, 156515, 1565802, 156581, 493191, 493194, 493203, 493205, 493289, B29C 2708, B29D 2310

Patent

active

045348189

ABSTRACT:
An automatic form-and-fill packaging machine especially adapted for the ultrasonic sealing of food products in flexible bags from ultrasonically sealable flexible packaging material, and a method to utilize said machine. A packaging machine is provided with a first ultrasonic back seal forming unit for producing a continuous longitudinal back seal on the bag, and a second ultrasonic sealing unit provided in a pair of jaw members which are adapted to form the end seals of the bag perpendicular to the direction of travel of the packaging material. The second ultrasonic sealing unit is provided with a horn and an anvil in opposing jaw members, such that when the jaws are shut, the flexible packaging material is tensioned against sealing land areas to provide the end seals.

REFERENCES:
patent: 3306001 (1967-02-01), Peppler
patent: 3813998 (1974-06-01), Lotto
patent: 4227959 (1980-10-01), Brown
patent: 4373982 (1983-02-01), Kreager et al.
patent: 4391081 (1983-07-01), Kovacs

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