Stitchless bulk bag including a baffle insert and method of production
AssigneeAmeriglobe, LLC
InventorsClifford Dunlap, Daniel Schnaars, Sr.
Life of this patent
Estimating the term…
Abstract
A stitchless baffle bulk bag including one or more baffle inserts that are heat sealed to a bag body using a hot melt film. A baffle insert includes a plurality of lateral straps spaced in between longitudinal panels. Tabs extend from the longitudinal panels into the space between lateral straps, above and below the lateral straps. The hot melt film is applied to at least a portion of the longitudinal panel and to the tabs, which is then heat sealed to the body under heat and pressure of heat seal bars. A hot melt sealed tab on both sides of the strap extending beyond the pivot point of the strap counters the forces of peel encountered by the strap and/or by a heat sealed joint of the tab or longitudinal panel.
Claims20
A bulk bag comprising:
- a) a top portion;
- b) a body portion having an interior surface, and having a first side, a second side, a third side and a fourth side, and having a first corner, a second corner, a third corner and a fourth corner, in an expanded configuration;
- c) a bottom portion;
- d) a baffle insert portion including:
- (i) at least a pair of longitudinal members with a plurality of lateral members spaced apart in between the longitudinal members;
- (ii) a plurality of tab portions, each tab portion extending laterally away from one said longitudinal member and into a space in between two said lateral members or into a space above or below a said lateral member;
- e) a heat-sealed joint formed between the body interior surface and the longitudinal members and formed between the plurality of tab portions and the body interior surface;
- f) wherein the baffle insert is positioned in the body portion so that it extends from the first side to the second side and across the first corner of the body portion with the lateral members positioned along a diagonal across the first corner when the body portion is in the expanded configuration.
A stitchless baffle body portion comprising:
- a) a body that has a tubular shape and comprises flexible plastic fabric or polyester fabric, the body having an interior surface, a first side, a second side, a third side and a fourth side, a first corner, a second corner, a third corner and a fourth corner, and the body having an expanded configuration;
- b) one or more baffle inserts made from a flexible plastic fabric or a polyester fabric that include:
- (i) at least a pair of longitudinal members with a plurality of lateral members spaced in between the longitudinal members;
- (ii) a plurality of tab portions, each tab portion extending laterally away from one said longitudinal member and into a space in between two said lateral members, or into a space above or below a said lateral member;
- c) one or more heat sealed joints coupling the one or more baffle inserts to the interior surface of the body;
- and
- d) wherein at least a portion of the plurality of lateral members are free and not coupled to the body.
A bulk bag comprising:
- a) a body portion having an interior surface, and having a first side, a second side, a third side and a fourth side, and a first corner, a second corner, a third corner and a fourth corner, in an expanded configuration;
- b) a bottom portion;
- c) a baffle insert portion including:
- (i) a pair of longitudinal members with a plurality of lateral members spaced in between the longitudinal members;
- (ii) a plurality of tab portions, each tab portion extending laterally away from one said longitudinal member and into a space in between two said lateral members or into a space above or below a said lateral member;
- d) a heat sealed joint, formed between the body interior surface and the pair of longitudinal members and between the body interior surface and the tabs;
- and
- e) wherein the baffle insert is positioned in the body portion so that it extends from the first side to the second side and across the first corner of the body portion with the lateral members positioned along a diagonal across the first corner when the body portion is in the expanded configuration.
Dependencies are inferred from the claim text.