US3696988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container construction
Assignee: Packaging Corp of America
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Filing: 1971-07-06
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Granted: 1972-10-10
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Expires: 1991-07-06
Abstract
Abstract A heavy duty container is provided which is adapted for use in the bulk packaging of siftable material or the like. The container is formed from a pair of complemental sections which cooperate to form end walls and elongated side walls. Each side wall is provided with a lap joint disposed intermediate the end walls. The lap joints are of multi-ply construction and reinforce the side walls against bulging or distortion when the container is loaded or arranged in stacked relation with other loaded containers.
Inventors
- 👤 Terrill L Nederveld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:05
CPC Classifications
B; B65; B65D; B65D19/00; B65D19/02; B65D19/06; B65D19/20; B65D2519/00; B65D2519/00004; B65D2519/00009; B65D2519/00014; B65D2519/00019; B65D2519/00154; B65D2519/00159; B65D2519/00189; B65D2519/00194; B65D2519/00258; B65D2519/00492; B65D2519/00502; B65D2519/00547; B65D2519/00577; B65D2519/00582; B65D2519/00587; B65D2519/00592; B65D2519/00597; B65D2519/00636; B65D2519/00641; B65D2519/00706; B65D2519/00711; B65D2519/00716; B65D2519/00721; B65D2519/00726; B65D2519/00736; B65D2519/00865; B65D2519/00875; B65D2519/0091
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
151 words
A container comprising a pair of complemental sections cooperating with one another to define upstanding walls, and top and bottom surfaces; each section being formed from a blank having a first segment and a second segment secured in offset relation to said first segment, said blank forming an end wall of double segment thickness, and side wall portions of substantially double segment thickness extending transversely from opposite sides of said end wall, the end limit of one side wall portion cooperating with the end limit of a corresponding side wall portion of the other complemental section so as to form an entire side wall having a lap joint disposed intermediate said end walls, the thickness of said lap joint being substantially greater than the thickness of the remainder of said entire side wall, and closure flaps foldably connected to the side wall portions and the end wall of each complemental section.
Claim 2
Dependent Claim
151 words
A container comprising a pair of complemental sections cooperating with one another to define upstanding walls, and top and bottom surfaces; each section being formed from a blank having a first segment and a second segment secured in offset relation to said first segment, said blank forming an end wall of double segment thickness, and side wall portions of substantially double segment thickness extending transversely from opposite sides of said end wall, the end limit of one side wall portion cooperating with the end limit of a corresponding side wall portion of the other complemental section so as to form an entire side wall having a lap joint disposed intermediate said end walls, the thickness of said lap joint being substantially greater than the thickness of the remainder of said entire side wall, and closure flaps foldably connected to the side wall portions and the end wall of each complemental section.
Claim 3
Dependent Claim
24 words
The container of claim 1 wherein said closure flaps are of single segment thickness and form the top and bottom surfaces of said container.
Claim 4
Dependent Claim
65 words
The container of claim 1 wherein the first segment of each blank forms the exterior of said container walls, the end limit of one side wall portion of each complemental section having the first segment thereof projecting beyond the second segment, and the end limit of the other side wall portion of each complemental section having the second segment thereof projecting beyond the first segment.
Claim 5
Dependent Claim
17 words
The container of claim 2 wherein the top surface-forming flaps of each complemental section are foldably interconnected.
Claim 6
Dependent Claim
17 words
The container of claim 2 wherein the bottom surface-forming flaps of each complemental section are foldably interconnected.
Claim 7
Dependent Claim
17 words
The container of claim 4 wherein the bottom surface-forming flaps of each complemental section are foldably interconnected.
Claim 8
Dependent Claim
23 words
The container of claim 1 wherein the first segment of each section blank is provided with the top and bottom surface-forming closure flaps.
Claim 9
Dependent Claim
36 words
The container of claim 1 wherein the first segment of each section blanks forms the closure flaps for one surface and the second segment of each section blank forms the closure flaps for the other surface.
Claim 10
Dependent Claim
22 words
The container of claim 1 including a pallet subtending the complemental sections, and means for securing said complemental sections to said pallet.
Claim 11
Dependent Claim
32 words
The container of claim 9 including a moisture proof bag disposed within the area delimited by said complemental sections, and removable cover member overlying the top surface defined by said surface-forming flaps.
References Cited (Backward Citations)
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Cited
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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) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |