Packaging apparatus

Details Packaging apparatus Packaging apparatus

1986-03-14

1987-04-21

Culver, Horace M.

Package making

Progressively seamed cover web or web folds

With closing of web between package units

53389, B65B 906, B65B 4110

Patent

active

046585699

ABSTRACT:
A packaging apparatus for packaging articles in a weldable and heat-contractive plastic film, comprising: a sealing device for welding and heat-cutting the plastic film to provide a package sealed at the opposite ends, a forming device disposed before the sealing device and having a pair of deflecting members for spreading the plastic film a transfer belt conveyor extended through the forming device to convey an article through the forming device to the front end of the opening of the spreaded plastic film, and a driving roller and a pressure roller disposed between the front end of the transfer belt conveyor and the sealing device so as to nip the plastic film therebetween to advance the plastic film through the sealing device. The side edges of the plastic film is pulled out by a necessary length for every sealing cycle of the sealing device.

REFERENCES:
patent: 4035983 (1977-07-01), Shanklin et al.
patent: 4073116 (1978-02-01), Glover
patent: 4118913 (1978-10-01), Putnam, Jr. et al.
patent: 4141196 (1979-02-01), Blanding
patent: 4185443 (1980-01-01), Budzyn
patent: 4219988 (1980-09-01), Shanklin et al.
patent: 4587794 (1986-05-01), Kopp
patent: 4589247 (1986-05-01), Tsuruta et al.

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