US3589510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Package and method of making
Assignee: Ameripol Inc
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Filing: 1969-04-28
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Granted: 1971-06-29
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Expires: 1989-04-28
Abstract
Abstract A rectangular blank for forming a tray having a strip of adhesive along each of two parallel edges and a score line in said blank parallel to each edge, the score lines intersecting to form a rectangle. Four slits are cut in said blank, each extending from an edge to one of the four intersections of the rectangle formed by the fold lines. A package comprising a tray having four vertical sides and a bottom, contents in said tray and a shroud extending over the contents. The shroud comprising a tube which may be closed at one end and extending down over the sides of the tray with the lower end of the shroud being bonded to adhesive material on the sides of the tray. The method of forming the tray. The method of forming the package.
Inventors
- 👤 Harry K Hubenthal
- 👤 Edward M Begnaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:37
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/20; B65D5/28; B65D71/00; B65D71/06; B65D71/08; B65D71/10; B65D2571/00; B65D2571/00006; B65D2571/00012; B65D2571/00018; B65D2571/00024; B65D2571/00055
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
166 words
A package comprising a bottom tray, material on said tray, and a shrink-fit shroud of plastic material completely enclosing said material and overlapping said tray, said tray having the structure formed by scoring a flat rectangular blank of foldable material in continuous lines parallel with each side thereof, depositing a continuous layer of adhesive on two opposed sides only of said blank in the area defined by the scoring lines and the outer edges, forming four symmetrically positioned slits in said blank extending from corresponding points on the periphery of the blank parallel with the strip of adhesive to the four corners formed by the intersection of the said scoring lines, and the tray being folded along the said scoring lines to form upstanding walls two of which have a continuous adhesive coating and overlapping and folding the material in the region of said slits to form adhesively coated flaps which define, with said shroud, an adhesive-free air channel in the other two of said walls.
Claim 2
Dependent Claim
166 words
A package comprising a bottom tray, material on said tray, and a shrink-fit shroud of plastic material completely enclosing said material and overlapping said tray, said tray having the structure formed by scoring a flat rectangular blank of foldable material in continuous lines parallel with each side thereof, depositing a continuous layer of adhesive on two opposed sides only of said blank in the area defined by the scoring lines and the outer edges, forming four symmetrically positioned slits in said blank extending from corresponding points on the periphery of the blank parallel with the strip of adhesive to the four corners formed by the intersection of the said scoring lines, and the tray being folded along the said scoring lines to form upstanding walls two of which have a continuous adhesive coating and overlapping and folding the material in the region of said slits to form adhesively coated flaps which define, with said shroud, an adhesive-free air channel in the other two of said walls.
Claim 3
Dependent Claim
114 words
In a method for shrink-packing material held in a bottom tray employing a shroud of heat shrinkable plastic completely enclosing said material and overlapping said tray, the improvement which comprises employing as said tray a rectangular box with upstanding walls only two of which have overlapping side flaps defining, with said shroud, air channels, said walls being coated with adhesive except in the area of said channels, securing said shroud to said adhesive, and applying heat to the shroud to shrink same by means of a ring circumscribing said shroud starting in the region of said tray and moving said means upwardly over the said shroud while allowing air to escape through said channels.
Claim 4
Dependent Claim
114 words
In a method for shrink-packing material held in a bottom tray employing a shroud of heat shrinkable plastic completely enclosing said material and overlapping said tray, the improvement which comprises employing as said tray a rectangular box with upstanding walls only two of which have overlapping side flaps defining, with said shroud, air channels, said walls being coated with adhesive except in the area of said channels, securing said shroud to said adhesive, and applying heat to the shroud to shrink same by means of a ring circumscribing said shroud starting in the region of said tray and moving said means upwardly over the said shroud while allowing air to escape through said channels.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |