Method of manufacturing and filling stand-up bags
AssigneeHB Creative, LLC
InventorJames I. Tankersley
Life of this patent
Estimating the term…
Abstract
A standup bag for granular products or the like and a method of manufacturing the bag. The standup bag is manufactured from an extruded heat scalable material and includes both an integral handle and a perforation to facilitate opening and pouring out the contents of the bag.
Claims42
A method for manufacturing from a single piece of film, a bag having front and rear walls, two side walls, a top portion, and a bottom portion upon which the bag stands when filled, comprising the steps of:
- wrapping a heat sealable film, having top and bottom edges and first and second side edges, around a tube to continuously form the front wall, the two side walls, and the rear wall;
- heat sealing, without using a cooling medium for controlling temperature of the film, the first and second side edges to each other to close the rear wall;
- heat sealing and folding, without using a cooling medium for controlling temperature of the film, the bottom edge to seal the bottom portion;
- filling the bag with a predetermined material;
- folding the two side walls inwardly between the front and rear walls so as to form gussets in the top portion and the bottom portion;
- heat sealing, without using a cooling medium for controlling temperature of the film, the top edge to seal the top portion;
- and
- coating the heat sealable film with heat resistant ink on an outer layer of the heat sealable film.
A method for manufacturing from a single piece of film, a bag having front and rear walls, two side walls, a top portion, and a bottom portion upon which the bag stands when filled, comprising the steps of:
- wrapping a heat sealable film, having top and bottom edges and first and second side edges, around a tube to continuously form the front wall, the two side walls, and the rear wall;
- heat sealing with heat sealing jaws, without using a cooling medium for controlling temperature of the film, the first and second side edges to each other to close the rear wall;
- heat sealing with heat sealing jaws and folding, without using a cooling medium for controlling temperature of the film, the bottom edge to seal the bottom portion;
- filling the bag with a predetermined material;
- folding the two side walls inwardly between the front and rear walls so as to form gussets in the top portion and the bottom portion;
- heat sealing with heat sealing jaws, without using a cooling medium for controlling temperature of the film, the to edge to seal the top portion;
- and coating the heat sealable film with an overcoating on an outer layer of the heat sealable film.
Dependencies are inferred from the claim text.