Patent US3640445A successfully refreshed from Google Patents.
US3640445A
Expired / Lapsed
US
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Partition divider
Assignee: Container Corp
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Filing: 1969-09-22
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Granted: 1972-02-08
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Expires: 1989-09-22
Abstract
Abstract A partition structure for dividing a receptacle into a plurality of separate compartments. The structure is formed from a cut and scored blank having a pair of interrupted foldlines extending along a common axis and a pair of interrupted slits extending laterally thereof to divide the blank into four quadrants defining partition members. A slit connects each of the aforementioned slits with a correlative one of the foldlines to define an area in the blank at the midportions thereof. Diagonally disposed quadrants are folded about the interrupted foldlines to a position normal to the plane of the remaining quadrants, and are rotatable into position about a foldline extending along an axis coextensive with an axis passing through the laterally extending interrupted slits in sliding contact with each other to define a cruciform. By reason of the configuration of the area at the midportion of the blank, the rotatable quadrants are locked into position so as to maintain the structural integrity of the cruciform.
Inventors
- 👤 Robert E Durham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:40
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/44; B65D5/48; B65D5/48024; B65D5/48026; B65D5/48028
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
342 words
A rigid partition divider formed from a cut and scored blank of paperboard or the like for dividing a receptacle into a plurality of separate compartments, comprising: a. a plurality of partition members extending laterally of each other and defining said compartments; b. said partition members being defined by; i. a pair of fold lines and a pair of first slits extending normal thereto, ii. an arcuate connecting slit extending from the inner end of each of said first pair of slits to a correlative one of said fold lines near the inner end of said fold lines; c. a central panel connecting a pair of diagonally disposed of said partition members; i. said central panel being defined in part by a circle having its loci of points including said arcuate connecting slits; d. a fold line in said central panel aligned with said pair of first slits; e. the other pair of said partition members being defined by said first pair of fold lines, said first named slits and said connecting slits; f. each of said other pair of partition members being foldable with respect to its contiguous partition member and being connected to one of said first pair of diagonally disposed partition members along the said first named fold lines; g. each of said other pair of partition members being rotated with respect to and past each other in a plane normal to the planes of the first pair of partition members about the fold line in said central panel to a position where the planes of said first pair of partition members have been displaced relative to each other by an angle of approximately 180* ; h. said central panel being concomitantly folded about the fold line therein whereby portions of said central panel are folded through an angle of 90* into facing relationship; i. said connecting slits being so configured and arranged whereby said other pair of partition members rotate to the aforesaid position, and whereby such rotative movement is free from substantial resistance by said central panel.
Claim 2
Dependent Claim
342 words
A rigid partition divider formed from a cut and scored blank of paperboard or the like for dividing a receptacle into a plurality of separate compartments, comprising: a. a plurality of partition members extending laterally of each other and defining said compartments; b. said partition members being defined by; i. a pair of fold lines and a pair of first slits extending normal thereto, ii. an arcuate connecting slit extending from the inner end of each of said first pair of slits to a correlative one of said fold lines near the inner end of said fold lines; c. a central panel connecting a pair of diagonally disposed of said partition members; i. said central panel being defined in part by a circle having its loci of points including said arcuate connecting slits; d. a fold line in said central panel aligned with said pair of first slits; e. the other pair of said partition members being defined by said first pair of fold lines, said first named slits and said connecting slits; f. each of said other pair of partition members being foldable with respect to its contiguous partition member and being connected to one of said first pair of diagonally disposed partition members along the said first named fold lines; g. each of said other pair of partition members being rotated with respect to and past each other in a plane normal to the planes of the first pair of partition members about the fold line in said central panel to a position where the planes of said first pair of partition members have been displaced relative to each other by an angle of approximately 180* ; h. said central panel being concomitantly folded about the fold line therein whereby portions of said central panel are folded through an angle of 90* into facing relationship; i. said connecting slits being so configured and arranged whereby said other pair of partition members rotate to the aforesaid position, and whereby such rotative movement is free from substantial resistance by said central panel.
Claim 3
Dependent Claim
45 words
A partition divider according to claim 1 wherein said rotated partition members have an interference fit with the boundaries of said central panel as defined by said arcuate connecting slits when moved to the cruciform position to maintain said rotated partition members in locked position.
References Cited (Backward Citations)
US1137732A
Cited
US2830749A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |