Air breathable bulk materials container
AssigneeNorth American Container Corporation
InventorsJohn M. Grigsby, Jr., Jeffrey C. Banks
Life of this patent
Estimating the term…
Abstract
A container for leaf product and other bulk pack materials wherein a blank of corrugated paperboard is scored to define side walls of the container, and a field of passageways are defined in at least one side wall of the container by a conical pin punch-pressed from opposing sides of the blank to define a passageway for communication of moisture from the container to the atmosphere for drying and long term storage of the leaf products. A method of defining passageways in the blank of paperboard is disclosed.
Claims20
A container for drying and long-term storage of leaf products, comprising:
- a blank of a sheet material scored to define two opposing end panels and two opposing side panels, foldable on the scores and a pair of opposing distal ends thereof adhered together to define a tubular body openable from a first position which is substantially flat to a second position squared-open for receiving a plurality of leaf products within a cavity defined by the opposing end and side panels;
- at least one of the panels defining a field of spaced-apart passageways for communicating moisture through the panel, each of the passageways defined by opposing conical pins pressing in a first direction and subsequent second direction substantially to a mid-point of the thickness of the panel;
- a bottom that closes a first open end of the tubular body and
- a top cap that closes a second open end of the tubular body,
- whereby the leaf products, being held within the tubular body, emit moisture which communicates through the field of passageways in the panel to atmosphere for drying and long-term storage of the leaf products.
A container for drying and long-term storage of leaf products made by the process comprising the steps of:
- (a) providing a blank of a sheet material scored to define two opposing end panels and two opposing side panels;
- (b) pressing with opposing conical pins a field of spaced-apart passageways in a portion of at least one of the opposing panels for communicating moisture through the panel;
- (c) folding the blank on the scores;
- (d) adhering a pair of opposing distal ends of the blank adhered together to define a tubular body openable from a first position which is substantially flat to a second position squared-open for receiving a plurality of leaf products within a cavity defined by the opposing end and side panels;
- (e) providing a bottom and a top cap that close opposing open ends of the tubular body,
- whereby leaf products, being held within the tubular body, emit moisture which communicates through the field of passageways in the panel to atmosphere for drying and long-term storage of the leaf products.
A reinforced bulk material container, comprising:
- a first wall-forming blank of paperboard scored to provide a series of main panels foldably joined together at a plurality of corners, said first wall-forming blank defining an inside surface and an outside surface;
- a second wall-forming blank of paperboard scored to provide a series of main panels foldably joined together at a plurality of corners, said second wall-forming blank defining a front side surface and a back side surface;
- a pair of independent support members glued to the backside of said second wall-forming blank at the location of each said corner, said pair of support members each extending substantially the height of said second wall-forming blank and arranged so as to straddle and be spaced apart from said score;
- said backside surface of said second wall-forming blank being laminated to said inside surface of said first wall-forming blank so as to provide a unitary container having a series of reinforced side walls foldably joined together;
- at least one of the side walls defining a field of spaced-apart passageways for communicating moisture through the panel, the passageways defined by passing opposing conical pins from a first direction and a second direction into the side wall substantially past a mid-point of the thickness of the side wall;
- whereby moisture from products placed in the interior of said container communicates through said passageways.
A method of defining passageways in a side wall of a container for drying and long-term storage of leaf products, comprising the steps of:
- (a) receiving a blank of a sheet material between aligned opposing first and second plates each defining a plurality of spaced-apart openings, the blank scored to define two opposing end panels and two opposing side panels, foldable on the scores and a pair of opposing distal ends thereof adhered together to define a tubular body openable from a first position which is substantially flat to a second position squared-open for receiving a plurality of leaf products within a cavity defined by the opposing end and side panels;
- (by moving a first array of conical pins from a retracted position to an extended position through the openings in the first plate with the conical pins extending substantially to a mid-point of the thickness of the blank to define a portion of passageways through the blank;
- and
- (c) moving a second array of conical pins from a retracted position to an extended position through the openings in the second plate with the conical pins extending substantially to a mid-point of the thickness of the blank to define a second portion of passageways through the blank,
- whereby leaf products, being held within the tubular body, emit moisture which communicates through the field of passageways in the panel to atmosphere for drying and long-term storage of the leaf products.
Dependencies are inferred from the claim text.