US3972454A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drum-like fiberboard container for bulk material with frangible bottom closure for dispensing
Assignee: Comco Inc
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Filing: 1975-07-31
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Granted: 1976-08-03
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Expires: 1995-07-31
Abstract
Abstract A drum-like container of fiberboard or similar material supplied in flat knocked-down form and adapted to be set up to serve both as a shipping and dispensing container for bulk material which is provided with a bottom closure equipped with a frangible wall arrangement to permit opening readily for dispensing the container contents.
Inventors
- 👤 Thomas E. Croley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:15
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/72; B65D5/726; B65D77/00; B65D77/04; B65D77/06; B65D77/061; B65D88/00; B65D88/54
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
183 words
A container of fiberboard or the like comprising a tubular body with an open lower end, a bottom closure for the open lower end and including a bottom wall member having a frangible area which is weakened along selected lines to provide flaps which can be separated to form a dispensing opening, a tear-strip cooperating with said bottom wall member to permit tearing of the member to provide the separated flaps, said frangible area of the bottom wall member having an inner surface completely exposed so that the weight of the container contents will aid in rupturing said wall when the tear strip is actuated to form said opening, said bottom closure including at least two bottom wall members in superimposed relationship, each of said bottom members having said frangible area and a tear-strip cooperating therewith, said frangible areas being superimposed in cooperative relationship, each of the tear-strips extending across a medium line of its respective bottom wall member, the superimposed bottom wall members being so arranged angularly relative to each other that the tear strips are disposed substantially at right angles relatively.
Claim 2
Dependent Claim
183 words
A container of fiberboard or the like comprising a tubular body with an open lower end, a bottom closure for the open lower end and including a bottom wall member having a frangible area which is weakened along selected lines to provide flaps which can be separated to form a dispensing opening, a tear-strip cooperating with said bottom wall member to permit tearing of the member to provide the separated flaps, said frangible area of the bottom wall member having an inner surface completely exposed so that the weight of the container contents will aid in rupturing said wall when the tear strip is actuated to form said opening, said bottom closure including at least two bottom wall members in superimposed relationship, each of said bottom members having said frangible area and a tear-strip cooperating therewith, said frangible areas being superimposed in cooperative relationship, each of the tear-strips extending across a medium line of its respective bottom wall member, the superimposed bottom wall members being so arranged angularly relative to each other that the tear strips are disposed substantially at right angles relatively.
Claim 3
Dependent Claim
46 words
A container according to claim 1 in which the selected lines along which each bottom wall member is weakened include score lines arranged substantially in a rectangle bisected by said tear-strip and perforated lines extending angularly from the corners of the rectangle toward said tear strip.
Claim 4
Dependent Claim
34 words
A container according to claim 1 in which each tear-strip is provided with depending actuating tabs, the tabs of an upper wall member being tucked between it and the next lower bottom wall member.
Claim 5
Dependent Claim
28 words
A container according to claim 1 in which the tubular body has attaching flanges at its lower end extending inwardly into cooperation with the superimposed bottom wall members.
Claim 6
Dependent Claim
52 words
A container according to claim 4 in which the tubular body is composed of a plurality of vertically extending panels hinged together at vertical fold lines to provide a multi-sided polygonal tube, said attaching flanges being on the lower ends of the respective panels and being connected thereto at horizontal fold lines.
Claim 7
Dependent Claim
56 words
A container according to claim 5 in which the bottom closure includes said superimposed wall members with the lowermost one having a polygonal edge with upstanding flanges connected thereto along fold lines and corresponding in number and position to said vertically extending panels of the tubular body and upwardly over which they extend in overlapping relationship.
Claim 8
Dependent Claim
51 words
A container according to claim 6 in which the bottom closure includes an innermost bottom wall member having a polygonal edge complemental to the upstanding flanges of the lower bottom wall into which it is inserted, said attaching flanges of the tubular body resting on one of the bottom wall members.
Claim 9
Dependent Claim
57 words
A container according to claim 7 in which the bottom wall member rests on a pallet to facilitate handling of the container, said pallet formed to provide an open area located beneath the lowermost frangible area of the bottom wall member to provide space for receiving the flaps as they swing downwardly to form the dispensing opening.
Claim 10
Dependent Claim
24 words
A container according to claim 8 including fastening members extended downwardly through said inwardly extending attaching flanges and bottom wall members into said pallet.
Claim 11
Dependent Claim
57 words
A container according to claim 9 in which the innermost bottom wall member is identical with the lowermost one but slightly smaller to fit into said body with its flanges extending upwardly over the inner surface of said panels and with the flanges of the lowermost bottom member extending upwardly over the outer surfaces of said panels.
Claim 12
Dependent Claim
35 words
A container according to claim 9 in which the innermost bottom wall member is identical with the lowermost one but has its flanges tucked beneath it to rest on said attaching flanges of the body.
Claim 13
Dependent Claim
43 words
A container according to claim 1 including a pallet on which the tubular body rests, said pallet having an open area beneath said frangible area of the bottom wall member to receive the flaps as they swing downwardly to form the dispensing opening.
Claim 14
Dependent Claim
148 words
A container of fiberboard or the like comprising a tubular body, a bottom closure for the body including a bottom wall member having a frangible area which is weakened along selected lines to provide flaps which can be separated to form a dispensing opening, a tear-strip cooperating with said bottom wall member to permit tearing of the member to provide the separted flaps, and a second bottom wall member in the form of a liner member resting on the first-named bottom wall member, said liner member having a frangible area like the frangible area of the first bottom wall member superimposed relative thereto and having a similar cooperating tear-strip, each of the tear-strips extending across a medium line of its respective bottom wall member, the superimposed bottom wall members being so arranged angularly relative to each other that the tear lines are disposed substantially at right angles relatively.
Claim 15
Dependent Claim
148 words
A container of fiberboard or the like comprising a tubular body, a bottom closure for the body including a bottom wall member having a frangible area which is weakened along selected lines to provide flaps which can be separated to form a dispensing opening, a tear-strip cooperating with said bottom wall member to permit tearing of the member to provide the separted flaps, and a second bottom wall member in the form of a liner member resting on the first-named bottom wall member, said liner member having a frangible area like the frangible area of the first bottom wall member superimposed relative thereto and having a similar cooperating tear-strip, each of the tear-strips extending across a medium line of its respective bottom wall member, the superimposed bottom wall members being so arranged angularly relative to each other that the tear lines are disposed substantially at right angles relatively.
Claim 16
Dependent Claim
45 words
A container according to claim 18 in which the selected lines along which each bottom wall member is weakened include score lines arranged substantially in a rectangle bisected by said tear-strip and perforated lines extending angularly from the corners of the rectangle toward said tear-strip.
Claim 17
Dependent Claim
34 words
A container according to claim 14 in which each tear-strip is provided with depending actuating tabs, the tabs of the innermost wall member being tucked between it and the adjacent lower bottom wall member.
Claim 18
Dependent Claim
43 words
A container according to claim 13 including a pallet on which the tubular body rests, said pallet having an open area beneath said frangible area of the bottom wall member to receive the flaps as they swing downwardly to form the dispensing opening.
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) | 1979-08-03 | 1980-02-02 | 1980-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-03 | 1984-02-02 | 1984-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-03 | 1988-02-02 | 1988-08-03 | $7700.00 | Window Closed / Lapsed |