Patent US3920141A successfully refreshed from Google Patents.
US3920141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stopper for containers, especially bottles and flasks
Assignee: Individual
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Filing: 1974-04-23
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Granted: 1975-11-18
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Expires: 1994-04-23
Abstract
Abstract A stopper for bottles and similar containers is disclosed, which comprises a caplike portion having an annular flange engaging a first curled edge of an annular strip, the other (bottom) edge of the strip being clamped onto the container''s neck. The strip has a number of rupturing lines so that, by pulling the cap portion, the strip is broken in several points and can be removed, the cap being thus disengaged.
Inventors
- 👤 Tiziano Bojardi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:19
CPC Classifications
B; B65; B65D; B65D55/00; B65D55/02; B65D55/06; B65D55/08; B65D55/0818; B65D55/0836; B65D55/0845; B65D51/00; B65D51/24; B65D51/28; B65D51/2807; B65D51/2814; B65D51/2828; B65D51/2835
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
156 words
A stopper for a container having a neck devoid of screw threads, the neck having an upper edge defining an open end and a radially extending bead having a bottom wall formed on the container neck adjacent the neck upper edge comprising, in combination, the cap having a bottom edge portion disposed above the bottom wall of the bead on a container, a downwardly extending, annular flange on said cap adjacent said bottom edge portion, and annular sealing strip having a circumferentially extending upper edge portion disposed in overlying clamping engagement with said flange and a circumferentially extending lower edge portion disposed in underlying clamping engagement with the bottom wall of said bead with said cap extending upwardly from said sealing strip, said strip being provided with a plurality of circumferentially spaced, axially extending break lines whereby a tilting force applied laterally to said cap ruptures said strip along one or more of said break lines.
Claim 2
Dependent Claim
156 words
A stopper for a container having a neck devoid of screw threads, the neck having an upper edge defining an open end and a radially extending bead having a bottom wall formed on the container neck adjacent the neck upper edge comprising, in combination, the cap having a bottom edge portion disposed above the bottom wall of the bead on a container, a downwardly extending, annular flange on said cap adjacent said bottom edge portion, and annular sealing strip having a circumferentially extending upper edge portion disposed in overlying clamping engagement with said flange and a circumferentially extending lower edge portion disposed in underlying clamping engagement with the bottom wall of said bead with said cap extending upwardly from said sealing strip, said strip being provided with a plurality of circumferentially spaced, axially extending break lines whereby a tilting force applied laterally to said cap ruptures said strip along one or more of said break lines.
Claim 3
Dependent Claim
37 words
A stopper in accordance with claim 1, wherein said cap is provided with a circumferentially extending shoulder on said bottom edge portion inwardly of said flange for overlying sealing engagement with the upper surface of said bead.
Claim 4
Dependent Claim
42 words
A stooper in accordance with claim 2, wherein said cap is provided with a downwardly extending portion of reduced diameter to form said shoulder, said portion of reduced diameter being arranged to be accommodated within said container neck in sealing relationship therewith.
Claim 5
Dependent Claim
23 words
A stopper in accordance with claim 1, including a sealing member disposed within said container neck and within the interior of said stopper.
Claim 6
Dependent Claim
42 words
A stopper in accordance with claim 1, wherein a portion of said flange extends radially outward along said cap bottom edge portion to define with said cap bottom edge portion a circumferentially extending recess for accommodating said sealing strip upper edge portion.
Claim 7
Dependent Claim
37 words
A stopper in accordance with claim 1, wherein said break lines comprise slits formed in said sealing strip, said slits extending transversely of said strip in circumferentially spaced relationship between said strip upper and lower edge portions.
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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) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |