US3563448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container end structure
Assignee: Corco Inc
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Filing: 1969-10-07
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Granted: 1971-02-16
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Expires: 1989-10-07
Abstract
Abstract An end structure, either top or bottom, for a container body which is of tubular form and of multisided polygonal transverse cross section. The end closure comprises a flat substantially disclike end with attaching flanges hinged thereto and extending inwardly from the plane thereof, being in number and lateral extent equal to the sides of the body and extending axially inwardly into overlapping relationship thereto. Each flange carries at one of its lateral edges a tab hinged thereto and adapted to overlap the adjacent lateral edge of the next flange for purposes of sealing and strengthening the joints between adjacent flanges. The flanges are suitably secured in overlapping relationship to the cooperating sides of the tubular body.
Inventors
- 👤 Thomas E Croley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:40
CPC Classifications
B; B65; B65D; B65D3/00; B65D3/10; B65D3/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
157 words
A fiberboard container comprising in combination a tubular container body of polygonal cross section having a selected number of Side panels angularly disposed relatively and connected at scored joints, an end structure comprising a closure unit adapted to telescope with said body at one end thereof, said closure unit comprising a substantially disclike body having an outer periphery of polygonal form with scored angularly disposed joints corresponding in number to the sides of said tubular container body and being substantially coextensive therewith, an attaching flange secured at each of said scored joints to the disclike body and being folded inwardly into overlapping contact with the adjacent surfaces of the respective side panels at the end of said body, each of said flanges having oppositely disposed lateral edges one of which carries a tab hinged thereto at a score line, the tab on each of said flanges overlapping the adjacent surfaces lateral edge of the next adjacent flange.
Claim 2
Dependent Claim
157 words
A fiberboard container comprising in combination a tubular container body of polygonal cross section having a selected number of Side panels angularly disposed relatively and connected at scored joints, an end structure comprising a closure unit adapted to telescope with said body at one end thereof, said closure unit comprising a substantially disclike body having an outer periphery of polygonal form with scored angularly disposed joints corresponding in number to the sides of said tubular container body and being substantially coextensive therewith, an attaching flange secured at each of said scored joints to the disclike body and being folded inwardly into overlapping contact with the adjacent surfaces of the respective side panels at the end of said body, each of said flanges having oppositely disposed lateral edges one of which carries a tab hinged thereto at a score line, the tab on each of said flanges overlapping the adjacent surfaces lateral edge of the next adjacent flange.
Claim 3
Dependent Claim
26 words
Structure according to claim 1 in which each of said tabs is of triangular form with an angular free edge opposite the scored hinge line thereof.
Claim 4
Dependent Claim
45 words
Structure according to claim 2 in which the opposite free edge of the tab has a band-receiving notch formed therein, said flanges being disposed outside the respective side panels, and a retaining band surrounding said flanges and being located in the respective notches formed therein.
Claim 5
Dependent Claim
36 words
Structure according to claim 3 in which said panels have coextensive flanges hinged at score lines thereto at the end of said body which are folded inwardly and are in flat contact with said disclike body.
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |