Hayssen, Inc.

Larence Calvin Dobbs

Lloyd Kovacs

Dale M Cherney

A method and apparatus for settling product in a servo-controlled vertical form, fill and seal machine where the product, when inserted into a partially-formed tubular bag, normally does not adequately settle without further action by the machine. The invention utilizes motion control of a servo motor to provide a settling action for product inside the partially-formed bag to introduce instability to cause settling in the bag at a very high frequency during continuous motion of the film and the film tube.

Method and apparatus for settling product in a servo-controlled continuous pull system

A method and apparatus for use in a vertical form, fill and seal machine to protect the longitudinal back seal. A pair of clamps retains the plastic film against the forming tube on either side of the back seal and on either side of a sealing platen if the platen is used for forming the back seal. The clamps extend for at least the length of the platen, and the clamps are operated together in unison.

Back seal support for vertical form, fill and seal machine

A method and apparatus for application of a header label to the bag. The bag, which has previously been filled with a product, is presented to the apparatus at an upstream bag presentation and accepting station and is gripped proximate its top. It is then transferred from the upstream bag accepting station to a downstream bag release station. Before being released, the bag travels to an intermediate label application station where a label is readied and applied to the bag. Thereafter, the bag proceeds downstream, with the label, and the label is sealed to the bag. A series of grippers are employed for accepting a stream of discreet bags in a continuous manner. The grippers are recirculated continuously so that the apparatus operates continuously so long as bags are presented for application of a label.

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Greer, SC, United States of America

Larence Calvin Dobbs