US5638973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage container with interlocking corner members
Assignee: PRODUCT DEVELOPMENT SYSTEMS Inc
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Filing: 1996-05-09
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Granted: 1997-06-17
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Expires: 2016-05-09
Abstract
Abstract A collapsible agricultural storage container having a base, and a plurality of side panels removably connected to the base panel and interlocked at their edges by elongated, removable corner members. Each side panel is adjacent to two other side panels, and each side panel has first and second edge portions having a key member extending therefrom. Each corner member has a pair of keyways that slidably receive the key members of adjacent side panels to interlock the side panels together. The side panels include a top edge portion having an aligning rail extending upwardly away from a stacking support for alignment of an upper storage container stacked atop a lower storage container. Each side panel also has a bottom foot portion that extends below the base panel and slopes inwardly of the aligning rail to a position directly below the stacking support. The bottom foot portion has guideways and footrail portions spanning across the guideways to provide a closed, four-sided aperture that is shaped and sized to receive the fork of a forked moving device used to move the storage container.
Inventors
- 👤 Richard W. Dewey
- 👤 E. James Long
- 👤 Jon Chester-Bristow
- 👤 David B. Petrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:26
CPC Classifications
B; B65; B65D; B65D19/00; B65D19/02; B65D19/06; B65D19/18; B65D11/00; B65D11/18; B65D11/1866; B65D11/1873; B65D2519/00; B65D2519/00004; B65D2519/00009; B65D2519/00014; B65D2519/00034; B65D2519/00049; B65D2519/00069; B65D2519/00119; B65D2519/00129; B65D2519/00154; B65D2519/00174; B65D2519/00223; B65D2519/00233; B65D2519/00243; B65D2519/00258; B65D2519/00263; B65D2519/00273; B65D2519/00283; B65D2519/00288; B65D2519/00313; B65D2519/00323; B65D2519/00328; B65D2519/00333; B65D2519/00398; B65D2519/00402; B65D2519/00422; B65D2519/00492; B65D2519/00497; B65D2519/00547; B65D2519/00577; B65D2519/00582; B65D2519/00606; B65D2519/00611; B65D2519/00636; B65D2519/00641; B65D2519/00646; B65D2519/00651; B65D2519/00671; B65D2519/00676; B65D2519/00681; B65D2519/00686; B65D2519/00736; B65D2519/00865; B65D2519/00875; B65D2519/009; B65D2519/00925; B65D2519/00935; B65D2519/00955; B65D2519/00965; B65D2519/00975; B65D2519/0098; B65D2519/0099
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
327 words
A collapsible storage container, comprising: a base having four perimeter portions; four side panels removably connected to said base, each at one of said perimeter portions, each of said side panels having first and second edge portions, said first and second edge portions being substantially perpendicular to said base and spaced apart from each other when said side panels are connected to said base, each of said first and second edge portions having a key member, said first edge portion of each side panel being adjacent to said second edge portion of another said side panel when connected to said base; and four elongated corner members removably interlocking said side panels, each of said corner members having substantially identical construction to removably interlock said first edge portion of one side panel and said second edge portion of another side panel, such that each corner member can be used to interlock any two of said side panels with said first edge portion of one side panel adjacent to said second edge portion of another side panel, each of said corner members having a pair of keyways therein, each sized to slidably receive and retain said key members of said first edge portion of one side panel adjacent to said second edge portion of another side panel, and said key member of said first edge portion having a first height relative to said base when said side panels are connected to said base, and said key member of said second edge portion having a second height relative to said base when said side panels are connected to said base, said first height being greater than said second height, such that one of said corner members will engage said key member of said first edge portion of one side panel before engaging said key member of said second edge portion of another side panel during installation of said corner member onto said one side panel and said another side panel.
Claim 2
Dependent Claim
327 words
A collapsible storage container, comprising: a base having four perimeter portions; four side panels removably connected to said base, each at one of said perimeter portions, each of said side panels having first and second edge portions, said first and second edge portions being substantially perpendicular to said base and spaced apart from each other when said side panels are connected to said base, each of said first and second edge portions having a key member, said first edge portion of each side panel being adjacent to said second edge portion of another said side panel when connected to said base; and four elongated corner members removably interlocking said side panels, each of said corner members having substantially identical construction to removably interlock said first edge portion of one side panel and said second edge portion of another side panel, such that each corner member can be used to interlock any two of said side panels with said first edge portion of one side panel adjacent to said second edge portion of another side panel, each of said corner members having a pair of keyways therein, each sized to slidably receive and retain said key members of said first edge portion of one side panel adjacent to said second edge portion of another side panel, and said key member of said first edge portion having a first height relative to said base when said side panels are connected to said base, and said key member of said second edge portion having a second height relative to said base when said side panels are connected to said base, said first height being greater than said second height, such that one of said corner members will engage said key member of said first edge portion of one side panel before engaging said key member of said second edge portion of another side panel during installation of said corner member onto said one side panel and said another side panel.
Claim 3
Dependent Claim
75 words
The collapsible storage container of claim 1 wherein when said side panels are connected to said base define an interior area of said storage container with four corners, and each of said corner members has a radiused inner surface extending longitudinally along said corner member, and located between said keyways to provide a curved transition surface between adjacent ones of said side panels when said side panels are connected to said base at said corners.
Claim 4
Dependent Claim
22 words
The collapsible storage container of claim 1 wherein each of said corner members is symmetrical about a longitudinally extending plane of symmetry.
Claim 5
Dependent Claim
41 words
The collapsible storage container of claim 3 wherein each of said key members has a generally T-shaped cross-section, and each of said keyways has a generally corresponding T-shaped cross-section sized larger than said key member to slidably receive said key members.
Claim 6
Dependent Claim
257 words
A collapsible storage container, comprising: a base having four perimeter portions; four side panels removably connected to said base, each at one of said perimeter portions, each of said side panels having first and second edge portions, said first and second edge portions being substantially perpendicular to said base and spaced apart from each other when said side panels are connected to said base, each of said first and second edge portions having a key member, said first edge portion of each side panel being adjacent to said second edge portion of another said side panel when connected to said base; and four elongated corner members removably interlocking said side panels, each of said corner members having substantially identical construction to removably interlock said first edge portion of one side panel and said second edge portion of another side panel, such that each corner member can be used to interlock any two of said side panels with said first edge portion of one side panel adjacent to said second edge portion of another side panel, each of said corner members having a pair of keyways therein, each sized to slidably receive and retain said key members of said first edge portion of one side panel adjacent to said second edge portion of another side panel, said first edge portion having a locking tab attached thereto adjacent to said key member of said first edge portion, said locking tab being shaped to releasably retain one of said corner members on said key member of said first edge portion.
Claim 7
Dependent Claim
257 words
A collapsible storage container, comprising: a base having four perimeter portions; four side panels removably connected to said base, each at one of said perimeter portions, each of said side panels having first and second edge portions, said first and second edge portions being substantially perpendicular to said base and spaced apart from each other when said side panels are connected to said base, each of said first and second edge portions having a key member, said first edge portion of each side panel being adjacent to said second edge portion of another said side panel when connected to said base; and four elongated corner members removably interlocking said side panels, each of said corner members having substantially identical construction to removably interlock said first edge portion of one side panel and said second edge portion of another side panel, such that each corner member can be used to interlock any two of said side panels with said first edge portion of one side panel adjacent to said second edge portion of another side panel, each of said corner members having a pair of keyways therein, each sized to slidably receive and retain said key members of said first edge portion of one side panel adjacent to said second edge portion of another side panel, said first edge portion having a locking tab attached thereto adjacent to said key member of said first edge portion, said locking tab being shaped to releasably retain one of said corner members on said key member of said first edge portion.
Claim 8
Dependent Claim
66 words
The collapsible storage container of claim 5 wherein said one of said corner members has a tab receiving area that removably receives a portion of said locking tab therein, said tab receiving area having a closed end positionable adjacent to said locking tab to releasably engage said locking tab to retain said one of said corner members on said key member of said first edge portion.
Claim 9
Dependent Claim
72 words
The collapsible storage container of claim 1 wherein each of said side panels has a top edge portion extending between said first and second edge portions, and a bottom foot portion opposite said top edge portion, said top edge portion has a stacking support and a stacking alignment rail extending away from said stacking support, and said bottom foot portion terminates at a bottom edge located directly below said top edge portion.
Claim 10
Dependent Claim
51 words
The collapsible storage container of claim 7 wherein said stacking alignment rail is located along an outward portion of said stacking support, and said bottom foot portion extends downward from said base and slopes inward of said stacking alignment rail and terminates in a position inward of said stacking alignment rail.
Claim 11
Dependent Claim
66 words
The collapsible storage container of claim 8 wherein said stacking alignment rail has first and second ends spaced apart from each other, said stacking alignment rail extends along the length of said top edge portion, said first end of said stacking alignment rail being located toward said first edge portion and said second end of said stacking alignment rail being located toward said second edge portion.
Claim 12
Dependent Claim
82 words
The collapsible storage container of claim 1 for use with a forked moving device, wherein each of said side panels is positioned opposite another one of said side panels when connected to said base, and each of said side panels has a bottom foot portion located below said base when connected to said base, said bottom foot portions of at least two opposing ones of said side panels having a guideway therethrough shaped to removably receive forks of the forked moving device.
Claim 13
Dependent Claim
43 words
The collapsible storage container of claim 10, further including a footrail portion attached to said bottom foot portion of one of said opposing ones of said side panels to span across said guideway to define a fork receiving aperture closed on four sides.
Claim 14
Dependent Claim
139 words
The collapsible storage container of claim 1 for use with a forked moving device, wherein each of said side panels is positioned opposite another one of said side panels when connected to said base, and each of said side panels has a bottom foot portion located below said base when connected to said base, said bottom foot portions of at least two opposing ones of said side panels having a pair of guideways therethrough shaped to removably receive forks of the forked moving device, and said storage container further includes a plurality of footrail portions, each of said plurality of footrail portions being attached to said bottom foot portion of one of said opposing ones of said side panels to span across one of said pair of guideways to define a fork receiving aperture dosed on all four sides.
Claim 15
Dependent Claim
55 words
The collapsible storage container of claim 1 wherein each of said corner members has a first and second end spaced apart from each other and a pair of elongated keyways each extending along the length of said corner member, each of said keyways being shaped to slidably receive and retain one of said key members.
Claim 16
Dependent Claim
97 words
The collapsible storage container of claim 1 wherein each of said side panels has a top edge portion extending between said first and second edge portions, and a bottom foot portion opposite said top edge portion, and each of said key members has first and second ends spaced apart from each other, each of said key members extending between said top edge portion and said bottom foot portion, said first end of said key member being located toward said top edge portion and said second end of said key member being adjacent to said bottom foot portion.
Claim 17
Dependent Claim
80 words
The collapsible storage container of claim 1 wherein each of said side panels has a top edge portion extending between said first and second edge portions, and a bottom foot portion opposite said top edge portion, and each of said first and second edge portions have first and second ends spaced apart from each other, each of said first ends being adjacent to said top edge portion and each of said second ends being adjacent to said bottom foot portion.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-06-16 | 2000-12-16 | 2001-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-06-16 | 2004-12-16 | 2005-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-06-16 | 2008-12-16 | 2009-06-17 | $7700.00 | Window Closed / Lapsed |