File folder box

• US 4,403,729 A
• Filed: 07/26/1982
• Issued: 09/13/1983
• Est. Priority Date: 07/20/1981
• Status: Expired due to Fees

• Current Assignee: Weyerhaeuser Company (Weyerhauser)
• Original Assignee: Weyerhaeuser Company (Weyerhauser)
• Inventors: Wytko, Richard
• Primary Examiner(s): Ross, Herbert F.
• Application Number:
  US06/402,019
• Time in Patent Office: 414 Days
• Field of Search: 229/39 R, 229/44 R, 229/45 R, 229/33, 229/41 B
• US Class Current: 229/149
• CPC Class Codes: B65D 5/0281 the tubular body presenting double or multiple walls for thermal insulating purposes B65D81/3853
• CPC Class Codes: B65D 5/10 with end closures formed by inward-folding of self-locking flaps hinged to tubular body
• CPC Class Codes: B65D 5/3621 collapsed along two fold lines of the tubular body
• CPC Class Codes: B65D 5/6608 the lid being held in closed position by self-locking integral flaps

Abstract

A container in which the container walls, the bottom closure, the reinforcing panels and the cover are unitary. The closure tab on the front closure flap is inserted into an aperture in the front panel and extends between the front panel and the front reinforcing panel.

Claims

1. A container blank comprising

first, second, third and fourth panels serially connected by score lines,

means for connecting said first and fourth panels in the completed container,

bottom closure panels extending from selected lower edges of said first, second, third and fourth panels,

two of said first, second, third and fourth panels having similar dimensions and being opposed side walls in the erect container,

the other two of said first, second, third and fourth panels having similar dimensions and being opposed front and back panels in the erect container,

a front reinforcing panel having the same height as said back panel and being hingedly attaced by a score line to the upper edge of said front panel,

an aperture through the outer face of said front panel,

a cover panel extending from the upper edge of the back panel and being hinged to said back panel along a score line,

a front closure flap hinged to the outer edge of said cover panel, said front closure flap having a closure tab having a length substantially equal to the length of said front panel aperture,

the distance between said front closure flap hinge and the inner edge of said closure tab being less than the distance between said front reinforcing panel hinge and the lower edge of said front aperture, and

the distance between said front closure flap hinge and the outer edge of said closure tab being greater than the distance between said front reinforcing panel hinge and the lower edge of said front aperture.

2. The container blank of claim 1 further comprising

the length of said front reinforcing panel being substantially equal to the height of said front panel and the width of said front reinforcing panel being substantially equal to the width of said front panel.

3. The container blank of claim 2 further comprising

a bottom reinforcing panel attached to the outer edge of said front reinforcing panel.

4. The container blank of claim 1 further comprising

said reinforcing panels hingedly attached by a score line to the upper edge of said side panels.

5. The container blank of claim 4 further comprising

said side reinforcing panels having a length substantially equal to the height of said side panels and a width substantially equal to the width of said side panels.

6. The container blank of claim 5 further comprising

bottom reinforcing panels hingedly attached to the outer edge of said side reinforcing panels.

7. The container blank of claim 1 further comprising

side reinforcing panels hingely attached by a score line to the upper edge of said side panels,

said side reinforcing panels having a length substantially equal to the height of said side panels and a width substantially equal to the width of said side panels,

bottom reinforcing panels hingedly attached to the outer edge of said side reinforcing panels,

the length of said front reinforcing panel being substantially equal to the height of said front panels less the thickness of said bottom reinforcing panels and the width of said front reinforcing panel being substantially equal to the width of said front panel less the thickness of said side reinforcing panels,

a third bottom reinforcing panel hingedly attached to the outer edge of said front reinforcing panel.

8. A container comprising a first, second, third and fourth panel serially connected by score lines,

means for connecting said first and fourth panels,

a bottom closure extending along the lower edges of said first, second, third and fourth panels,

two of said first, second, third and fourth panels having similar dimensions and being opposed side walls of the container,

the other two of said first, second, third and fourth panels having similar dimensions and being opposed front and back walls of the container,

a front reinforcing panel having the same height as said back panel and hingedly attached to the upper edge of said front panel extending into said container along the inner face of said front panel,

an aperture through the outer face of said front panel,

a cover panel extending hinged to and from the upper edge of said back panel across the upper edges of said first, second, third and fourth panels, a front closure flap hinged to the outer edge of said cover panel and extending downwardly over the outer of said front panel, a closure tab extending through said aperture downwardly between said front panel and said front reinforcing panel.

9. The container of claim 8 in which

side reinforcing panels are hinged to the upper edges of said side panels and extend downwardly into the container along the inner face of said side panels.

10. The container of claim 9 in which

bottom reinforcing panels are hinged to the lower edges of said front and side reinforcing panels, said side bottom reinforcing panels extending along the bottom closure and said front bottom reinforcing panel extending over said side bottom reinforcing panels.

11. The container of claim 9 in which

bottom reinforcing panels are hinged to the lower edges of said front and side reinforcing panels, said front bottom reinforcing panel extends along the bottom closure and said side bottom reinforcing panels extend over said front bottom reinforcing panel.