Container construction and end panel therefor

• US 3,905,478 A
• Filed: 03/26/1973
• Issued: 09/16/1975
• Est. Priority Date: 06/28/1972
• Status: Expired due to Term

• Current Assignee: United States Box Corporation
• Original Assignee: Anthony J. Fieri, Dale S. Peterson, Onick M. Vartikian
• Inventors: Peterson, Dale S., Vartikian, Onick M., Fieri, Anthony J.
• Primary Examiner(s): Price, William I.
• Assistant Examiner(s): Shoap, Allan N.
• Application Number:
  US05/344,807
• Time in Patent Office: 904 Days
• Field of Search: 217/52,53 220/9F,72 229/36,14C,2.5 206/523,524
• US Class Current: 206/523
• CPC Class Codes: B65D 5/14 with inset end closures
• CPC Class Codes: Y10T 428/163 Next to unitary web or sheet of equal or greater extent
• CPC Class Codes: Y10T 428/24174 including sheet or component perpendicular to plane of web or sheet

Abstract

A container and particularly an end panel therefor is described in which the generally rectangular end panels are formed of a molded frame of high density plastic such as polystyrene with a plurality of internal ribs and webs for stiffening the frame and for receiving and holding nails. The molded frame is filled with a low density plastic which is fused to the frame. Two embodiments are disclosed which differ slightly in configuration depending upon use. Two complete container embodiments are shown, including one wherein the top, bottom and side panels are glued to the end panels and another in which the top, bottom and sides are nailed to the end panels.

Claims

1. In a container having top, bottom and side panels;

a pair of end panels each comprising a molded frame of high density plastic material, said frame including a face panel and top, bottom and side rim sections attached around the periphery of said face panel and of a depth equal to the desired thickness of said end panel;

a reinforcing rib member spaced inwardly from each of said top, bottom and side rim sections and attached to said face panel, each of said rib members being at a depth of at least over half the thickness of said end panel;

at least one reinforcing cross member of a depth substantially equal to the thickness of said end panel extending between said top and bottom rim sections and spaced a significant distance from said rim sections;

the depth of said reinforcing rib members which are parallel to said top and bottom rim sections is less than the depth of said rim sections over at least a substantial portion of their length; and

a layer of low density, expanded plastic filler material fused to said frame and filling said frame substantially to the depth of said rim sections.

2. End panels for a container as set forth in claim 1 wherein said face panel has an opening constituting a substantial portion of its area and wherein two reinforcing cross members are included bridging across said opEning.

3. End panels for a container as set forth in claim 2 wherein said reinforcing cross member includes a channel section over at least a portion of its length.

4. End panels for a container as set forth in claim 3 including a plurality of closely spaced webs extending across the channel sections of said reinforcing cross members substantially parallel to and in close proximity to at least one of said top and bottom rim sections.

5. End panels for a container as set forth in claim 4 wherein said webs are positioned between said top rim section and the reinforcing rib members spaced therefrom.

6. End panels for a container as set forth in claim 1 including a second reinforcing rib member spaced inwardly from each of said side rim sections.

7. End panels for a container as set forth in claim 1 wherein said panel includes a plurality of webs extending substantially perpendicularly between said rim sections and said reinforcing rib members.