US4055266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination crown twist-off closure capp
Assignee: Individual
•
Filing: 1976-10-26
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Granted: 1977-10-25
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Expires: 1996-10-26
Abstract
Abstract The present invention provides a closure cap of the threaded crown type, which closure cap includes one or more flanges depending from a skirt of the closure cap, the flange being adapted to engage a locking shoulder on the container, the flange having at least one weakening line therein, such that the flange either ruptures or spreads on removal of the closure flaring outwardly due to a camming action of the locking shoulder.
Inventors
- 👤 Arnaldo Amabili
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:24
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/32; B65D41/40; B65D41/42
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
155 words
A closure cap for use with a container having an externally threaded neck and a locking shoulder, said closure cap comprising a top, a peripheral skirt depending from the top, said skirt being corrugated and having threads formed thereon for mating engagement with the threaded neck of the container, and a plurality of flanges integral with and depending from said skirt, each flange being spaced from an adjacent flange by a distance sufficient to permit use of an opening device on a free marginal edge of said skirt between adjacent flanges, each of said flanges being adapted to engage the locking shoulder of said container, each of said flanges having at least one vertical line of weakening formed therein which rupture or spread on removal of said closure by an unscrewing motion to divide each flange into segments which flare outwardly by a camming action of the locking shoulder upon removal of the closure cap.
Claim 2
Dependent Claim
155 words
A closure cap for use with a container having an externally threaded neck and a locking shoulder, said closure cap comprising a top, a peripheral skirt depending from the top, said skirt being corrugated and having threads formed thereon for mating engagement with the threaded neck of the container, and a plurality of flanges integral with and depending from said skirt, each flange being spaced from an adjacent flange by a distance sufficient to permit use of an opening device on a free marginal edge of said skirt between adjacent flanges, each of said flanges being adapted to engage the locking shoulder of said container, each of said flanges having at least one vertical line of weakening formed therein which rupture or spread on removal of said closure by an unscrewing motion to divide each flange into segments which flare outwardly by a camming action of the locking shoulder upon removal of the closure cap.
Claim 3
Dependent Claim
15 words
The closure cap of claim 2 comprising three equally spaced-apart flanges depending from said skirt.
Claim 4
Dependent Claim
28 words
The container of claim 2 wherein each flange has a peripheral line of weakening of interrupted slits adjacent the point of joinder of said flange to said skirt.
Claim 5
Dependent Claim
32 words
The closure cap of claim 3 wherein each of said flanges has several vertical lines of weakening formed therein, each line of weakening terminating at a free marginal edge of the flange.
Claim 6
Dependent Claim
23 words
The closure cap of claim 4 wherein said vertical lines of weakening are selected from score lines, interrupted slits, or a continuous slit.
Claim 7
Dependent Claim
35 words
The closure cap of claim 5 wherein each flange has a continuous peripheral weakening line adjacent the point of joinder of said flange to said skirt, said continuous peripheral weakening line comprising a score line.
Claim 8
Dependent Claim
26 words
The closure cap of claim 2 wherein each flange has a continuous peripheral weakening line adjacent the point of joinder of said flange to said skirt.
Claim 9
Dependent Claim
26 words
The closure cap of claim 4 wherein said peripheral line of weakening comprises a score line with material removed from an interior surface of the flange.
Claim 10
Dependent Claim
15 words
The closure cap of claim 5 including a liner on the underside of said top.
Claim 11
Dependent Claim
19 words
The closure cap of claim 2 wherein said flanges have a thickness less than the thickness of said skirt.
References Cited (Backward Citations)
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Cited
US3410435A
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US3606062A
Cited
US3648874A
Cited
US3861551A
Cited
US3812991A
Cited
US3910443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-24 | 1981-04-25 | 1981-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-24 | 1985-04-25 | 1985-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-24 | 1989-04-25 | 1989-10-25 | $7700.00 | Window Closed / Lapsed |