Patent US3921892A successfully refreshed from Google Patents.
US3921892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bottom dump container for bulk material
Assignee: Individual
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Filing: 1974-05-28
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Granted: 1975-11-25
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Expires: 1994-05-28
Abstract
Abstract A reusable heavy duty corrugated carton attached to a pallet and adapted to be conveyed by a fork-lift truck, said container being constructed with a disposable bottom dump panel so that when the bottom panel of the container has been cut by tear means to create dumping openings in the bottom panel and the contents of the container have been released the container may be reused by providing a new bottom dump panel.
Inventors
- 👤 Henry J Macie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:44
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; B65D2519/00263; B65D2519/00273; B65D2519/00313; B65D2519/00323; B65D2519/00328; B65D2519/00333; B65D2519/00492; B65D2519/00502; B65D2519/00547; B65D2519/00577; B65D2519/00582; B65D2519/00587; B65D2519/00592; B65D2519/00597; B65D2519/00636; B65D2519/00641; B65D2519/00706; B65D2519/00716; B65D2519/00721; B65D2519/00726; B65D2519/00736; B65D2519/00805; B65D2519/00865; B65D2519/00875; B65D2519/0091; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/80
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
87 words
A corrugated box bottom dump container comprising: a pallet support; an outer wall section attached to said pallet support; a removable middle liner coextensive with and disposed within said outer wall section; a removable inner liner coextensive with and disposed within said middle liner; a container bottom comprising a separate disposable and replaceable bottom dump panel extending over substantially the entire bottom area of the container; and panel tearing means in said replaceable bottom dump panel for creating opening means therein to release contents from said container.
Claim 2
Dependent Claim
87 words
A corrugated box bottom dump container comprising: a pallet support; an outer wall section attached to said pallet support; a removable middle liner coextensive with and disposed within said outer wall section; a removable inner liner coextensive with and disposed within said middle liner; a container bottom comprising a separate disposable and replaceable bottom dump panel extending over substantially the entire bottom area of the container; and panel tearing means in said replaceable bottom dump panel for creating opening means therein to release contents from said container.
Claim 3
Dependent Claim
38 words
The bottom dump container of claim 1 wherein said pallet support includes opening means therethrough which is in register with opening means adapted to be created in said bottom dump panel when said panel tearing means is actuated.
Claim 4
Dependent Claim
65 words
The bottom dump container of claim 1 wherein the panel tearing means comprises a ripping string or wire anchored on the inside top surface of said bottom panel and which extends longitudinally across said panel to a point spaced from the anchoring point and is then extended through the panel to a position where it may be grasped for actuation and tearing of the panel.
Claim 5
Dependent Claim
66 words
The bottom dump container of claim 3 wherein said panel tearing means further includes means defining a perforation pattern with the ripping strings disposed therebetween in such manner that when said ripping string is pulled to make a rip in the panel the weight of the contents of the container will bear against the weakened panel structure and create an opening defined by said perforation pattern.
Claim 6
Dependent Claim
29 words
The bottom dump container of claim 4 wherein said bottom dump panel is formed with fluting running therethrough, said ripping string being positioned to cut transversely through Said fluting.
Claim 7
Dependent Claim
49 words
The bottom dump container of claim 1 wherein said bottom dump panel includes panel tearing means for creating two side by side openings in said panel; and said pallet support includes a longitudinally extending central support member which runs between said means for creating two side by side openings.
Claim 8
Dependent Claim
86 words
The bottom dump container of claim 1 wherein said bottom dump panel includes panel tearing means for independently creating two side by side openings in said panel; said pallet support includes a longitudinally extending central support member which runs between said means for creating two side by side openings; said bottom dump panel being formed with fluting running therethrough, said panel being positioned in the assembly so that the fluting of said panel runs transversely to said longitudinally extending central support member of said pallet support.
Claim 9
Dependent Claim
69 words
The bottom dump container of claim 1 wherein the panel tearing means comprises a plurality of tear tapes attached to the inside surface of said bottom dump panel and pull means attached to said tear tapes whereby actuation of said pull means is effective to rip said tear tapes through said bottom dump panel to create an opening therein to permit the contents of the container to be released.
Claim 10
Dependent Claim
51 words
The bottom dump container of claim 1 wherein said outer wall section and inner liner are constructed of a fluted matrial running in one direction and said middle liner is constructed of fluted material running in a direction transverse to the fluting in said outer wall section and said inner liner.
Claim 11
Dependent Claim
32 words
The bottom dump container of claim 9 wherein the fluted material of said outer wall section and said inner liner runs vertically and the fluted material of said middle liner runs horizontally.
Claim 12
Dependent Claim
56 words
The bottom dump container of claim 1 wherein two of said wall sections or liners are constructed of a fluted material running in one direction and the other of said wall sections or liners is constructed of fluted material running in a direction transverse to the fluting of said two of said wall sections or liners.
Claim 13
Dependent Claim
32 words
The bottom dump container of claim 1 wherein said outer wall section has inwardly extending flap portions formed thereon, the outer edge of said bottom dump panel resting on said flap portions.
Claim 14
Dependent Claim
53 words
The bottom dump container of claim 12 wherein said liner has inwardly extending flap portions formed thereon which overlap the edges of said bottom dump panel; said inwardly extending flap portions on said outer wall section and on said inner liner forming a seal with the outer edges of said bottom dump panel.
Claim 15
Dependent Claim
59 words
A reusable corrugated box bottom dump container comprising: four side walls and a bottom panel; said container bottom comprising a separate disposable panel not integral with the container walls and extending over substantially the entire bottom area of the container; said container bottom further including panel tearing means for creating opening means therein to release contents from said container.
Claim 16
Dependent Claim
59 words
A reusable corrugated box bottom dump container comprising: four side walls and a bottom panel; said container bottom comprising a separate disposable panel not integral with the container walls and extending over substantially the entire bottom area of the container; said container bottom further including panel tearing means for creating opening means therein to release contents from said container.
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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) | 1978-11-24 | 1979-05-26 | 1979-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-24 | 1983-05-26 | 1983-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-24 | 1987-05-26 | 1987-11-25 | $7700.00 | Window Closed / Lapsed |