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Apparatus and method for automatically filling bags, which have been automatically formed on a vertical-form-fill-seal machine, with a predetermined weight of particulate material, said apparatus comprising a feeder means including a weighing means for measuring the loss in total weight of the feede

Apparatus and method for automatically filling bags, which have been automatically formed on a vertical-form-fill-seal machine, with a predetermined weight of particulate material, said apparatus comprising a feeder means including a weighing means for measuring the loss in total weight of the feeder means and its contents.

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Apparatus for automatically filling bags, which have been automatically formed on a vertical-form-fill-seal machine, with a predetermined weight of particulate material comprising a feeder means for providing a supply of particulate material, dispensing a quantity of said particulate material, and m

Apparatus for automatically filling bags, which have been automatically formed on a vertical-form-fill-seal machine, with a predetermined weight of particulate material comprising a feeder means for providing a supply of particulate material, dispensing a quantity of said particulate material, and measuring the weight of said particulate material dispensed, said feeder means comprising primary support means suitable for mounting on stationary structure or ground, weighing means mounted on said primary support means, secondary support means suspended from said weighing means, a hopper for holding a quantity of said particulate material which quantity is greater than said predetermined weight, said hopper mounted on said secondary support means, said hopper having means at or near the top for introducing said particulate material and having means at or near the bottom for dispensing said particulate material into an open bag which has been formed on a vertical-form-fill-seal machine, said weighing means being situated to measure the total weight of said secondary support means, said hopper and said particulate material in said hopper.