US4029231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pilferproof closure for bottles, tubes and similar containers
Assignee: Wicanders Korkfabriker AB
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Filing: 1975-11-20
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Granted: 1977-06-14
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Expires: 1995-11-20
Abstract
Abstract A pilferproof closure is disclosed having an inner cap and an outer cap. The inner cap is joined together with the outer cap and thus the closure is not removable from a container before the connection between the inner cap and the outer cap has been broken. Inwardly directed projections are provided on said inner cap and arranged to be brought into engagement with the neck of the container to form a childproof reusable closure after the original closure has been broken.
Inventors
- 👤 Knut Johan Vilhelm Jonsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:50
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/40; B65D50/00; B65D50/02; B65D50/04; B65D50/045; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/80; Y10; Y10S; Y10S220/00; Y10S220/915
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
141 words
A pilferproof closure for bottles, tubes and similar containers, having an opening at its top surrounded by a retaining rim, comprising a cap having an inner skirt adapted for repeated sealing of the opening provided with inwardly directed projections to engage with said retaining rim, an outer skirt surrounding said inner skirt and adapted to extend about said inner skirt when said cap is initially closed on said container to prevent movement of said inner skirt permitting the disengagement of said projections with said rim, said inner and outer skirts being provided with detachable sections along the free edges thereof, means for permanently connecting said detachable sections, and an enervation line at a distance from the free edge of the inner skirt arranged to permit said detachable section to be torn from the inner skirt on detachment of the outer skirt.
Claim 2
Dependent Claim
141 words
A pilferproof closure for bottles, tubes and similar containers, having an opening at its top surrounded by a retaining rim, comprising a cap having an inner skirt adapted for repeated sealing of the opening provided with inwardly directed projections to engage with said retaining rim, an outer skirt surrounding said inner skirt and adapted to extend about said inner skirt when said cap is initially closed on said container to prevent movement of said inner skirt permitting the disengagement of said projections with said rim, said inner and outer skirts being provided with detachable sections along the free edges thereof, means for permanently connecting said detachable sections, and an enervation line at a distance from the free edge of the inner skirt arranged to permit said detachable section to be torn from the inner skirt on detachment of the outer skirt.
Claim 3
Dependent Claim
32 words
The closure of claim 1 wherein the lower edge of the outer skirt rests against the neck of the container to form a natural extension of the outer casing of the container.
Claim 4
Dependent Claim
38 words
The closure of claim 1, wherein said connecting means comprises a plurality of spacers arranged between the outer skirt and the inner skirt, said spacers being permanently connected to said outer skirt to maintain separation of said skirt.
Claim 5
Dependent Claim
37 words
The closure of claim 1, wherein said detachable section of said outer skirt is integral with said outer skirt and defined by an enervation line arranged at a distance from the free edge of said outer skirt.
Claim 6
Dependent Claim
33 words
The closure of claim 1, wherein said detachable section arranged in said outer skirt consists of a tear-off strip attached to said outer skirt defined by two enervation lines spaced from each other.
Claim 7
Dependent Claim
28 words
The closure of claim 1, wherein the detachable section is formed in the outer skirt and extends around the skirt, and is provided with a flap for gripping.
Claim 8
Dependent Claim
36 words
The closure according to claim 1 including a second set of projections arranged above said detachable section within said inner skirt, enabling said cap to be reclosed upon said container after removal of said detachable section.
References Cited (Backward Citations)
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Cited
US3474930A
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US3802607A
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US3884393A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-06-13 | 1980-12-13 | 1981-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-13 | 1984-12-13 | 1985-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-13 | 1988-12-13 | 1989-06-14 | $7700.00 | Window Closed / Lapsed |