Patent US4000844A successfully refreshed from Google Patents.
US4000844A
Expired / Lapsed
US
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One-piece partition
Assignee: International Paper Co
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Filing: 1975-10-30
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Granted: 1977-01-04
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Expires: 1995-10-30
Abstract
Abstract A one-piece paperboard partition and a die cut blank for forming it. The blank includes a rectangular panel made up of one set of two rectangular flaps or one or more sets of three rectangular flaps. The sets of flaps and the flaps in each set of the panel are arranged in a row and are foldably connected along one or more fold lines. Each set of flaps consists of one inner flap and one or two outer flaps. Each outer flap in a set includes a continuous slot, extending from the same side of its set of flaps and parallel to the fold lines. The blank also includes one or more bridging members, each of which is foldably connected to an inner flap, along the one slotted side of the set of flaps to which the bridging member is connected. The blank further includes one or more rectangular forked panels, each of which is foldably connected to the opposite side of a bridging member, remote from the one slotted side of the set of flaps to which the bridging member is attached. Each forked panel has one or more continuous slots extending from a side thereof, remote from the one slotted side of the adjacent set of flaps. The center line of a slot in each forked panel is colinear with a fold line between an inner flap and an outer flap. Also, the length of each bridging member, between an inner flap and a forked panel, equals the distance between the center line of the slot in an outer flap and the adjacent fold line between the inner flap and the outer flap. The panel, forked panels and bridging members are adapted to be folded, to form the partition, so that: the forked panels are transverse to the outer flaps; the flaps and forked panels are in an upstanding position; and the center line of the slot in each outer flap is vertical and colinear with a slot in a forked panel.
Inventors
- 👤 Charles Perry Weimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:29
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/44; B65D5/48; B65D5/48024; B65D5/48026; B65D5/48032; B65D5/48034
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
228 words
A blank for a one-piece partition, which comprises: a panel having a set of two substantially rectangular flaps arranged in a row; said flaps of said panel being foldably connected along a fold line between said flaps; a continuous slot being provided in the width-wise middle of an outer flap of said set of flaps of said panel, extending from one side of said set of flaps and parallel to said fold line; a bridging member, one side of which is foldably connected only to an inner flap of said set of flaps along said one slotted side of said set of flaps; and a forked panel, foldably connected to the opposite side of said bridging member, remote from said one slotted side of said set of flaps, and having a continuous slot extending from a side thereof remote from said one slotted side of said set of flaps; the center line of said slot in said forked panel being substantially colinear with said fold line between said inner and outer flaps of said set of flaps, and the length of said bridging member, between said forked panel and said inner flap, being about equal to the distance between the center line of said slot in said outer flap and the adjacent fold line between said inner and outer flaps in said set of flaps in said panel.
Claim 2
Dependent Claim
228 words
A blank for a one-piece partition, which comprises: a panel having a set of two substantially rectangular flaps arranged in a row; said flaps of said panel being foldably connected along a fold line between said flaps; a continuous slot being provided in the width-wise middle of an outer flap of said set of flaps of said panel, extending from one side of said set of flaps and parallel to said fold line; a bridging member, one side of which is foldably connected only to an inner flap of said set of flaps along said one slotted side of said set of flaps; and a forked panel, foldably connected to the opposite side of said bridging member, remote from said one slotted side of said set of flaps, and having a continuous slot extending from a side thereof remote from said one slotted side of said set of flaps; the center line of said slot in said forked panel being substantially colinear with said fold line between said inner and outer flaps of said set of flaps, and the length of said bridging member, between said forked panel and said inner flap, being about equal to the distance between the center line of said slot in said outer flap and the adjacent fold line between said inner and outer flaps in said set of flaps in said panel.
Claim 3
Dependent Claim
12 words
The blank of claim 1 wherein said panel includes only two flaps.
Claim 4
Dependent Claim
15 words
The blank of claim 2 wherein said forked panel includes only one of said slots.
Claim 5
Dependent Claim
90 words
The blank of claim 1 wherein said panel includes one or more foldably connected sets, arranged in a row, of three flaps; each set comprising one of said inner flaps and two of said outer flaps, foldably connected along two of said fold lines, about said inner flap; and said forked panel having at least two of said slots; the center lines of two of said slots in said forked panel being substantially colinear with said fold lines about said inner flap of one of said sets of three flaps.
Claim 6
Dependent Claim
28 words
The blank of claim 4 wherein said forked panel includes (n + 1) of said slots, in which n is the number of said sets of three flaps.
Claim 7
Dependent Claim
33 words
The blank of claim 5 wherein said panel includes two or more sets of three flaps and the distances between the center lines of said slots in said forked panel are the same.
Claim 8
Dependent Claim
17 words
The blank of claim 4 wherein said panel includes only three flaps in each of said sets.
Claim 9
Dependent Claim
25 words
The blank of claim 7 wherein said panel includes two of said sets of three flaps and said forked panel includes three of said slots.
Claim 10
Dependent Claim
13 words
The blank of claim 1 wherein said panel and said flaps are rectangular.
Claim 11
Dependent Claim
11 words
The blank of claim 9 wherein said forked panel is rectangular.
Claim 12
Dependent Claim
11 words
The blank of claim 10 wherein said bridging member is rectangular.
Claim 13
Dependent Claim
11 words
The blank of claim 11 wherein said bridging member is square.
Claim 14
Dependent Claim
37 words
The blank of claim 1 wherein the width of said slot in said outer flap at the one slotted side of said set of flaps is much larger than the width of the remainder of said slot.
Claim 15
Dependent Claim
45 words
The blank of claim 13 wherein an angle-cut notch is cut into said one slotted side of said set of flaps, said notch intersecting said slot in said outer flap of said set of flaps and being located between said slot and said inner flap.
Claim 16
Dependent Claim
33 words
The blank of claim 13 wherein the width of said slot in said forked panel at said one slotted side thereof is much larger than the width of the remainder of said slot.
Claim 17
Dependent Claim
30 words
The blank of claim 15 wherein a notch is cut into said one slotted side of said forked panel about the center line of said slot in said forked panel.
Claim 18
Dependent Claim
46 words
The blank of claim 1 wherein said bridging member is connected to said inner flap along a fold line having a length equal to the width of said inner flap, as measured by the distance transverse of said fold line between said inner and outer flaps.
Claim 19
Dependent Claim
43 words
The blank of claim 4 wherein a plurality of said sets of three flaps are provided in said blank and the widths of said outer flaps of said sets are equal and the widths of said inner flaps of said sets are equal.
Claim 20
Dependent Claim
40 words
The blank of claim 18 wherein the outer flaps of said sets are twice as wide as the inner flaps of said sets and said slots in said outer flaps are located in the width-wise middle of said outer flaps.
Claim 21
Dependent Claim
107 words
A one-piece partition, which comprises: an upstanding forked panel, having a vertical continuous slot extending from the top side thereof; an upstanding, substantially rectangular flap, having in the width-wise middle thereof a vertical continuous slot extending from the bottom side thereof; an upstanding, substantially rectangular side wall flap, foldably connected to an upstanding side of said flap; and a bridging member, foldably connected to the bottom side of said side wall flap and to the bottom side of said forked panel; said flap being transverse to said forked panel and the center lines of said slots in said flap and in said forked panel being substantially colinear.
Claim 22
Dependent Claim
107 words
A one-piece partition, which comprises: an upstanding forked panel, having a vertical continuous slot extending from the top side thereof; an upstanding, substantially rectangular flap, having in the width-wise middle thereof a vertical continuous slot extending from the bottom side thereof; an upstanding, substantially rectangular side wall flap, foldably connected to an upstanding side of said flap; and a bridging member, foldably connected to the bottom side of said side wall flap and to the bottom side of said forked panel; said flap being transverse to said forked panel and the center lines of said slots in said flap and in said forked panel being substantially colinear.
Claim 23
Dependent Claim
24 words
The partition of claim 20 wherein said partition includes only one of said upstanding flaps and only one of said upstanding side wall flaps.
Claim 24
Dependent Claim
15 words
The partition of claim 21 wherein said forked panel includes only one of said slots.
Claim 25
Dependent Claim
50 words
The partition of claim 20 wherein said partition includes two or more of said flaps, transverse to said forked panel; and said forked panel includes two or more of said slots; the center lines of said slots in said flaps being substantially colinear with said slots in said forked panel.
Claim 26
Dependent Claim
36 words
The partition of claim 23 which includes more than two of said flaps and more than two of said slots in said forked panel; two of said flaps being foldably connected and arranged in side-by-side relationship.
Claim 27
Dependent Claim
14 words
The partition of claim 20 wherein said flaps and said forked panel are rectangular.
Claim 28
Dependent Claim
42 words
The partition of claim 20 wherein said bridging member is connected to said side wall flap along a fold line having a length equal to the width of said side wall flap, as measured along the bottom of said side wall flap.
Claim 29
Dependent Claim
54 words
The partition of claim 20 wherein a plurality of said flaps and a plurality of said side wall flaps are provided and the widths of said flaps are equal and the widths of said side wall flaps are equal; said widths being measured along the bottom of said flaps and said side wall flaps.
Claim 30
Dependent Claim
32 words
The partition of claim 27 wherein said flaps are twice as wide as said side wall flaps and said slots in said flaps are located in the width-wise middle of said flaps.
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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) | 1980-01-04 | 1980-07-05 | 1981-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-04 | 1984-07-05 | 1985-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-04 | 1988-07-05 | 1989-01-04 | $7700.00 | Window Closed / Lapsed |