Method and apparatus for automatic filling of bags

Details Method and apparatus for automatic filling of bags Method and apparatus for automatic filling of bags

1979-04-30

1980-12-30

McGehee, Travis S.

Package making

Methods

With contents treating

53459, 53 67, 53529, 53571, 53258, 53385, B65B 6302, B65B 4322, B65B 4336

Patent

active

042415624

ABSTRACT:
A method and apparatus for the automatic filling of plastic bags with, for example, elastic, soft and deformable contents. In order to provide for the automatic handling of empty bags without intermediate, especially manual, steps, the invention provides that the empty bags are attached by extending flaps to a plastic carrier web across a tear line. The apparatus of the invention places a quantity of goods into the bag by means of an axially moving filling piston which passes between spreadable jaws that hold the bag open. The continued motion of the filling piston eventually exerts a force sufficient to cause fracture along the tear line and separation of the filled bag from the flap which stays attached to the carrier web. The piston then moves the filled bag into position for sealing. A number of embodiments is presented.

REFERENCES:
patent: 3217464 (1965-11-01), Feingold
patent: 3507090 (1970-04-01), D'Angelo
patent: 3552090 (1971-01-01), Roberts et al.
patent: 3908343 (1975-09-01), Farrelly
patent: 4047362 (1977-09-01), Lister et al.
patent: 4157003 (1979-06-01), Kamphaus

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