Container construction

Claim 2

A container for use in the bulk handling of a comminuted product, comprising a receptacle including an imperforate bottom panel, a plurality of upright imperforate wall panels delimiting said bottom panel, all of said wall panels being connected to said bottom panel by a continuous foldline, and corner members connected by foldlines to upright peripheral portions of successive wall panels, the portions of each corner member foldably connected to said successive wall panels being substantially coextensive with the height of said wall panels, said corner member foldlines terminating at said continuous foldline, each corner member having sections thereof folded upon one another and disposed in overlying relation with respect to the exterior surface of one successive wall panel; each corner member section having an upper edge portion which is substantially coextensive with the upper edge of the wall panel overlaid thereby, at least one selected corner member having an exposed section thereof provided with an aperture, the successive wall panel overlaid by said selected corner member, being provided with an extension foldably connected to the upper peripheral portion thereof and overlapping the exposed surface of the apertured section of said selected corner member, the outer edge of said extension having a tongue foldably connected thereto, said tongue having an inwardly extending tab portion struckout from said extension, and an outwardly extending portion, said inwardly extending tab portion extending through the aperture in said exposed section and positioned in interlocking engagement intermediate the pair of folded overlying sections of said selected corner member, and said tongue outwardly extending portion overlying a segment of said exposed section subtending said aperture.

Claim 3

The container of claim 1 wherein predetermined wall panels each have pairs of said corner members arranged in overlapping relation with respect to the exposed surface thereof, one of each pair of corner members being the selected corner member and overlying the other corner member of said pair whereby the aperture of said selected corner member section is exposed, and each predetermined wall panel being provided with said extension disposed in overlapping relation with respect to the upper edges of said pair of corner members and in overlying relation with respect to the exposed surface of the apertured section, each extension having a tongue provided with said inwardly extending tab portion struckout from said extension and said outwardly extending portion.

Claim 4

The container of claim 1 including an imperforate cover unit removably mounted on the upper end of said receptacle delimited by said upright wall panels, said cover unit being provided with depending wall panels, at least one of said depending wall panels being adapted to overlie and frictionally engage the exposed surface of said extension of said selected successive wall panel when said cover unit is positioned in closed relation with respect to said receptacle.

Claim 5

The container of claim 3 wherein said extension of said receptacle cooperates with portions of said cover unit to effect interlocking of said cover unit in a closed position.

Claim 6

The container of claim 3 wherein said cover unit includes a top panel, depending sidewall panels delimiting said top panel and foldably connected to the periphery thereof, end flaps foldably connected to the opposite ends of alternate sidewall panels, said end flaps being disposed in face-to-face contact with the interior surfaces of adjacent intermediate sidewall panels, each end flap carrying a slotted tab which is angularly disposed with respect to said end flap and engages the interior surface of said top panel, each intermediate sidewall panel being provided with a foldable interior wall section which sandwiches adjacent end flaps between said intermediate sidewall panel and said interior wall section, a distal edge portion of said interior wall section lockingly engaging said slotted tabs.

Claim 7

The container of claim 5 wherein each cover unit interior wall section has end portions spaced from the interior surface of said cover unit top panel.

Claim 8

The container of claim 5 wherein said cover unit top panel is provided with an elongated foldline extending thereacross and terminating at alternate depending sidewall panels, said alternate sidewall panels each provided with a depending weakened line which is aligned with said top panel foldline whereby a selected segment of the cover unit may be moved to an open position while the remainder of said cover unit is retained in a closed position with respect to said receptacle.

Claim 9

A pair of blanks of foldable sheet material for forming a receptacle including a container and a removable cover therefor used in the bulk handling of a comminuted product, a first blank of said pair of blanks comprising a multisided bottom-forming panel; wall forming panels delimiting said bottom-forming panel and foldably connected to the multisides of said bottom-forming panel and adapted, when said first blank is set up, to delimit an open top for said container; corner members foldably connected to marginal portions of adjacent wall-forming panels, each corner member having a diagonally disposed foldline terminating at one end at the periphery of said bottom-forming panel and cooperating with the marginal portions of said adjacent wall-forming panels to form complemental sections, one section of each alternate corner members being provided with an aperture; and extension panels foldably connected to alternate wall-forming panels, each extension panel being connected to the edge of said alternate wall-forming panels opposite said bottom-forming panel and being provided with a tongue which interlockingly engages a corner member section aperture when said blank is set up to form said container; and a second blank of said pair of blanks comprising a multisided top-forming member; sidewall forming members delimiting said top-forming member, first alternate sidewall forming members having first portions foldably connected along one side thereof to certain alternate sides of said top-forming member and second portions foldably connected to said first portions opposite said one side thereof; end flaps foldably connected to opposite ends of second alternate sidewall forming members, each end flap having a slotted tab foldably connected to an edge thereof adjacent a first alternate sidewall forming member; and extension units foldably connected to said second portions of said first alternate sidewall forming members, peripheral portions of said extension units interlockingly engaging said slotted tabs when said blank is set up to form said cover, whereby said extension units frictionally engage a portion of said extension panels when the cover is placed upon the container to form said receptacle.

Claim 10

A pair of blanks of foldable sheet material for forming a receptacle including a container and a removable cover therefor used in the bulk handling of a comminuted product, a first blank of said pair of blanks comprising a multisided bottom-forming panel; wall forming panels delimiting said bottom-forming panel and foldably connected to the multisides of said bottom-forming panel and adapted, when said first blank is set up, to delimit an open top for said container; corner members foldably connected to marginal portions of adjacent wall-forming panels, each corner member having a diagonally disposed foldline terminating at one end at the periphery of said bottom-forming panel and cooperating with the marginal portions of said adjacent wall-forming panels to form complemental sections, one section of each alternate corner members being provided with an aperture; and extension panels foldably connected to alternate wall-forming panels, each extension panel being connected to the edge of said alternate wall-forming panels opposite said bottom-forming panel and being provided with a tongue which interlockingly engages a corner member section aperture when said blank is set up to form said container; and a second blank of said pair of blanks comprising a multisided top-forming member; sidewall forming members delimiting said top-forming member, first alternate sidewall forming members having first portions foldably connected along one side thereof to certain alternate sides of said top-forming member and second portions foldably connected to said first portions opposite said one side thereof; end flaps foldably connected to opposite ends of second alternate sidewall forming members, each end flap having a slotted tab foldably connected to an edge thereof adjacent a first alternate sidewall forming member; and extension units foldably connected to said second portions of said first alternate sidewall forming members, peripheral portions of said extension units interlockingly engaging said slotted tabs when said blank is set up to form said cover, whereby said extension units frictionally engage a portion of said extension panels when the cover is placed upon the container to form said receptacle.