B - Operations – Transporting – 65 – B
Patent
B - Operations, Transporting
65
B
226/59, 154/29.0
B65B 31/02 (2006.01) B65B 51/10 (2006.01)
Patent
CA 1060402
A B S T R A C T A process of bulk packing commodities into vacuum sealed plastics bags comprising loading a commodity to be packed into a bag of a laminate of two films of plastics of different softening points, disposing the loaded bag into a sealing apparatus, closing the sealing apparatus with the superposed films at the open mouth of the bag disposed in a sealing device and the outer surface of the bag engageable with a heating device, energizing the apparatus to apply reduced pressure to the bag interior, heat or impulses sealing the mouth of the bag, heating the bag laminate to cause the inter face of the laminate to soften and fuse round the commodity in the bag under the action of the reduced pressure, opening the apparatus and removing the sealed bag therefrom.
274727
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