| Patent Number |
Title Of Patent |
Date Issued |
| 7553269 |
Method of manufacturing a bag |
June 30, 2009 |
| A bag having an inwardly disposed seam is manufactured from a sheet of plastic bag material having two major surfaces and two parallel side edges. A first seam seals the two parallel side edges together at the same major surface with the side edges disposed inwardly of the tube to fo |
| 6715260 |
Method and apparatus for bag loading and dispensing |
April 6, 2004 |
| A method and apparatus for securing, loading and singularly dispensing bags in a bag bundle from a dispensing hook includes a bag bundle formed from a plurality of stacked bags. Each bag has apertures are defined in the front panel and the rear panel adjacent the open top, these aperture |
| 6669615 |
Plastic film hinging and pre-creasing process |
December 30, 2003 |
| A hinge is disclosed for a plastic film. This film has a predetermined thickness sufficient for the plastic film to remain planar in an absence of a first bending moment applied across the plastic film. The hinge includes at least one linear groove configured in the plastic film to r |
| 6502371 |
Self-opening bag |
January 7, 2003 |
| In the process of die-cutting bag stacks to form individual bag tops, die-cut handle apertures, or other mounting apertures, die blade configurations forming the vent lines of an array of vent apertures are also used to bond the outer surfaces of the front and rear bag walls together |
| 6319184 |
Apparatus and process for producing cold seal in plastic bags |
November 20, 2001 |
| A process of cold sealing two layers of plastic film material together is used as part of the structural element of a plastic bag made from plastic film. The bag has a closed bottom, a continuous closed periphery, and an open top. The improvement provides the bag with a cold seal, which |
| 6186933 |
Plastic bag manufacturing process |
February 13, 2001 |
| A process for bag manufacture of a bag having a first dimension from a sealed bottom of the bag to an open top of the bag, the bag being fabricated from a continuous tube of plastic film bag material. The process includes the steps of providing a continuous tube of plastic film bag m |
| 6171226 |
Plastic bag bundling system |
January 9, 2001 |
| A process of serially dispensing and opening a bag from a bundle of bags includes providing a bundle of bags having at least a leading bag and a plurality of trailing bags. Tabs at the top of the bags fasten to a support and sever under a first force. A fastening adjacent the top of the |
| 6113269 |
Automatic ventilating system for plastic bags |
September 5, 2000 |
| Ventilation slits are placed in a plastic bag wall for opening in response to tension passing through the bag wall as the bag is carried. A conventional bag has a front bag wall, with the front bag wall having a top, a bottom, and two parallel side edges. The rear bag wall is of iden |
| 6095687 |
Flat bottomed plastic bag |
August 1, 2000 |
| An expandable plastic film gusseted bag is utilized. As in conventional bag manufacture, each front gusset panel is connected to a rear gusset panel and each of the gusset panels is foldable between the front panel and the rear panel to provide a continuous bag periphery. A bottom joins |
| 5013290 |
Serial dispensing bags which open automatically |
May 7, 1991 |
| A method for producing a serialized bundle of thermoplastic T-shirt grocery bags which serially open upon being dispensed. Specifically, a bag being removed from the serialized bundle of thermoplastic T-shirt grocery bags mounted on a dispensing rack automatically opens an immediately fo |
| 5011466 |
Method of making a T-shirt grocery bag having a coupon |
April 30, 1991 |
| A T-shirt type grocery bag having a tear-off coupon provided during manufacture. An endless tube of blown thermoplastic is collapsed and printed, including printing for the coupon indicia. The bag is "W" folded forming side for the to-be-formed bag. The folded tube is heat sealed and |
