Easy opening flexible plastic bag and a method of making same
AssigneeParamount Packaging Corporation
InventorsDaniel J. Conrad, Mark A. Roland
Life of this patent
Estimating the term…
Abstract
An easy opening plastic bag includes a plastic front panel, a plastic rear panel, and plastic left and right end panels coupled to the front and rear panels. A plastic gusset is formed at the top of the bag and is joined to the front, rear, left, and right panels. A first frangible portion is disposed near a top of the front panel, and a second frangible portion is disposed near a top of the rear panel. The first and second frangible portions lie in a plane which allows a portion of the bag to rotate away from the remainder of the bag about an axis parallel to the plane. A third frangible portion is provided in the bag and extends substantially perpendicular to the plane of the first and second frangible portions.
Claims18
An easy opening plastic bag comprising:
- a front panel;
- a rear panel;
- left and right end panels coupled to the front and rear panels;
- a gusset formed at a top of the bag and coupled to the front and rear panels;
- and
- a first frangible line disposed near a top of the front panel;
- a second frangible line disposed near a top of the rear panel, the first and second frangible lines lying substantially in a plane;
- and
- a frangible portion connecting the first and second frangible lines so that breaking the frangible lines and portion will allow a portion of the bag to rotate away from the remainder of the bag about an axis parallel to said plane.
A plastic bag comprising;
- plastic front and rear panels;
- plastic left and right end panels joined to the front and rear panels;
- a gusset disposed between the front, rear, left end, and right end panels;
- and
- in at least one of the end panels, three frangible sections connected to each other, each of two of such sections extending to and connecting with one of fourth and fifth frangible sections, the fourth section being located in the front panel and the fifth section being located in the rear panel.
An easy opening plastic bag for compressed articles comprising,
- a front panel;
- a rear panel;
- left and right end panels coupled to the front and rear panels;
- a gusset formed at a top of the bag and coupled to the front and rear panels;
- and
- frangible portions disposed in the front, rear and left end panels and connected to each other so that when they are broken a portion of the gusset may rotate upward.
An easy opening bag for compressed articles comprising,
- a front panel;
- a rear panel;
- left and right end panels coupled to the front and rear panels;
- a gusset formed at a top of the bag and coupled to the front and rear panels;
- and
- a frangible portion disposed in said front panel, said rear panel, and one of (i) said gusset and (ii) left end panel so that when the frangible portion is broken, a portion of the bag rotates away from the remainder of the bag.
A plastic bag containing compressed articles, comprising;
- compressed articles,
- a plastic bag comprising:
- plastic front and rear panels;
- plastic left and right end panels joined to the front and rear panels;
- a gusset disposed between the front, rear, left end, and right end panels;
- and
- in at least one of the end panels, three frangible sections connected to each other, each of two of such sections extending to and connecting with one of fourth and fifth frangible sections, the fourth section being located in the front panel and the fifth section being located in the rear panel.
A method of manufacturing an easy opening plastic bag comprising the steps of:
- folding a first plastic sheet over on itself to form a front panel and a rear panel;
- making an interior fold at the folded portion of the first plastic sheet to forma a gusset between the front and rear panels;
- folding a second plastic sheet over on itself and positioning the second plastic sheet adjacent the front and rear panels of the first plastic sheet and bridging the gusset;
- forming first and second frangible lines near the tops the front and rear panels, respectively, so as to define a plane including the first and second frangible portions;
- forming a frangible portion in the bag connecting the first and second frangible lines so that breaking the frangible lines and portion will allow a portion of the bag to rotate away from the remainder of the bag about an axis parallel to said plane;
- sealing left and right side edges of the bag;
- and
- trimming and sealing the second flexible sheet to provide a loop handle coupled to the front and rear panels.
Dependencies are inferred from the claim text.