Patent US3659757A successfully refreshed from Google Patents.
US3659757A
Expired / Lapsed
US
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Closure device for general containers
Assignee: Individual
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Filing: 1970-04-15
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Granted: 1972-05-02
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Expires: 1990-04-15
Abstract
Abstract A closure device for general containers, comprising a body member adapted to be sealingly secured within a performed bore of a container, an opened-end hollow cylindrical element screwing in said body member between re-entered and extracted positions for allowing the material within the container to exit and a plug which can be sealingly screwed in said cylindrical element. The plug is connected to said body member by a tear off removable strip and the closure device is also provided with means for clamping the hollow cylindrical element at its extracted position and means for preventing said cylindrical element from completely exiting.
Inventors
- 👤 Francesco Tini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:14
CPC Classifications
B; B65; B65D; B65D39/00; B65D39/08; B65D47/00; B65D47/04; B65D47/06; B65D47/061; B65D47/12; B65D47/121
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
154 words
A closure device for general containers, comprising a body member adapted to be sealingly secured to an opening of a container, an open-ended hollow cylindrical element extending longitudinally within and from a bore in said body member, a closure plug constructed of the same material and integral with said body member and severable therefrom by means of an interconnecting tear away guarantee seal circular strip having a tab extending therefrom by which said seal may be torn away to sever the connection between said body member and said closure plug, said closure plug being removably secured to one end of said element to provide a closure therefore, said element being configured so that when said seal is torn away said element may be moved through said body member from a normal position to an extracted position, and means for preventing a complete exit of said element from said body member in said extracted position.
Claim 2
Dependent Claim
154 words
A closure device for general containers, comprising a body member adapted to be sealingly secured to an opening of a container, an open-ended hollow cylindrical element extending longitudinally within and from a bore in said body member, a closure plug constructed of the same material and integral with said body member and severable therefrom by means of an interconnecting tear away guarantee seal circular strip having a tab extending therefrom by which said seal may be torn away to sever the connection between said body member and said closure plug, said closure plug being removably secured to one end of said element to provide a closure therefore, said element being configured so that when said seal is torn away said element may be moved through said body member from a normal position to an extracted position, and means for preventing a complete exit of said element from said body member in said extracted position.
Claim 3
Dependent Claim
70 words
A closure device according to claim 1, wherein said element is provided at one end with an outer thread mating with a corresponding auxiliary thread in the bore of said body member, the other end of said hollow element being provided with an outwardly projecting portion to provide for a stop abutment against the lower surface of said body member in order to prevent said cylindrical element from completely exiting.
Claim 4
Dependent Claim
27 words
A closure device according to claim 1, wherein said plug is provided with an outer thread mating with a corresponding auxiliary thread inside said hollow cylindrical element.
Claim 5
Dependent Claim
56 words
A closure device according to claim 3, further provided with clamping means for the hollow cylindrical element at its extracted position, said means comprising an outer circular rib formed adjacent the lower end of said cylindrical element, said rib engaging a corresponding annular seat in the bore of said body member at the lower edge thereof.
Claim 6
Dependent Claim
58 words
A closure device according to claim 4, wherein a circular slot is provided in said body member at said annular seat, so that said seat is formed on a resiliently deformable axial flange to facilitate the engagement and disengagement of said seat with the corresponding rib of the cylindrical element and the insertion of the latter when assembling.
Claim 7
Dependent Claim
73 words
A closure device according to claim 1, wherein said cylindrical element has at its upper edge an outward projecting rib, the outer surface of which has a first upwardly inwardly tapered frusto-conical upper section and a second downwardly inwardly tapered frusto-conical lower section, at the top said body member having a corresponding tapered surface mating with said second tapered section of the rib to prevent said cylindrical element from being removed when assembled.
Claim 8
Dependent Claim
26 words
A closure device according to claim 1, wherein a gap is provided in said body member about the plug to facilitate the gripping of said plug.
References Cited (Backward Citations)
CA566472A
Cited
US2774523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |