Packaging apparatus including rotary jaw device and method of making packages
AssigneeFrito-Lay Trading Company GmbH
InventorMark Tilley
Life of this patent
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Abstract
A packaging apparatus including a rotary jaw device, the rotary jaw device comprising an elongate holder, an elongate knife mounted on and projecting outwardly from the elongate holder, the knife having an elongate cutting edge parallel to a plane of the knife, and at least one part of a heat seal device located on the elongate holder on opposed sides of the knife. A packaging method is also disclosed.
Claims21
A packaging apparatus including a rotary jaw device, the rotary jaw device comprising an elongate holder, an elongate planar knife mounted on and projecting outwardly from the elongate holder, the knife having an elongate cutting edge parallel to the plane of the knife, and a heat seal device located on the elongate holder on opposed sides of the knife, wherein the holder is mounted on a mounting support adapted to rotate about a rotational axis, the plane of the knife being inclined to the rotational axis.
A method of making packages, the method comprising the steps of:
- a. providing a flattened tube of packaging film;
- b. locating a portion of the flattened tube between a rotary jaw device and an anvil, the rotary jaw device having an elongate planar knife with an elongate cutting edge parallel to the plane of the knife;
- c. rotating the rotary jaw device about a rotational axis, the plane of the knife being inclined to the rotational axis;
- and
- d. cutting through the portion of the flattened tube between the rotary jaw device and a reaction surface of the anvil for the cutting action of the knife, the knife and anvil being mutually arranged so that as the knife rotates, the cutting edge of the knife progressively contacts the reaction surface with a contact point therebetween moving longitudinally along the cutting edge.
Dependencies are inferred from the claim text.