US3843014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container cover
Assignee: Pechiney SA
•
Filing: 1973-03-16
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Granted: 1974-10-22
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Expires: 1993-03-16
Abstract
Abstract A cover for containers whose contents are under pressure which includes a substantially flat central portion, a crimping flange portion and a neck interposed between the flange portion and the central portion and connected thereto by connecting portions without any break in continuity.
Inventors
- 👤 J Cospen
- 👤 J Schiavi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:45
CPC Classifications
B; B65; B65D; B65D7/00; B65D7/42
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
153 words
A cover for a container whose contents are under pressure comprising a substantially flat central portion, said central portion including a removable panel, a crimping flange portion, a peripheral neck having a radius of curvature within the range of 0.5 to 1.2 mm, a substantially rectilinear portion of continued section without break in continuity integral with and connecting the neck with the central portion, a portion integral with and connecting the crimping flange portion and the neck, with the portion connecting the crimping flange portion with the neck forming an angle X with a line perpendicular to the plane surface of the neck at most 20* and forming with the rectilinear portion an angle Y within the range of up to 34*, said angles x and Y being selected in such a manner that for a high value of X the value of Y will be as low as possible and vice versa.
Claim 2
Dependent Claim
153 words
A cover for a container whose contents are under pressure comprising a substantially flat central portion, said central portion including a removable panel, a crimping flange portion, a peripheral neck having a radius of curvature within the range of 0.5 to 1.2 mm, a substantially rectilinear portion of continued section without break in continuity integral with and connecting the neck with the central portion, a portion integral with and connecting the crimping flange portion and the neck, with the portion connecting the crimping flange portion with the neck forming an angle X with a line perpendicular to the plane surface of the neck at most 20* and forming with the rectilinear portion an angle Y within the range of up to 34*, said angles x and Y being selected in such a manner that for a high value of X the value of Y will be as low as possible and vice versa.
Claim 3
Dependent Claim
21 words
A cover according to claim 1 wherein Y is comprised between 6* and 34* and r between 0.5 and 1 mm.
Claim 4
Dependent Claim
39 words
A cover as defined in claim 1 which includes a scored portion having low resistance to tearing, said scored portion defining the removable panel, and means to pull the scored portion from the cover to form an opening therein.
Claim 5
Dependent Claim
130 words
In a container whose contents are under pressure having an easy opening cover, the improvement comprising a cover including a substantially flat central portion, said central portion including a removable panel, a criming flange portion, a peripheral neck having a radius of curvature within the range of 0.5 to 1.2 mm, a substantially rectilinear portion of continued section without break in continuity integral with and connecting the neck with the central portion, a portion integral with and connecting the crimping flange portion and the neck, with the portion connecting the crimping flange portion with the neck forms an angle X with a line perpendicular to the plane surface of the neck at most 20* and forming with the rectilinear portion of angle Y within the range of 6* to 34*.
Claim 6
Dependent Claim
130 words
In a container whose contents are under pressure having an easy opening cover, the improvement comprising a cover including a substantially flat central portion, said central portion including a removable panel, a criming flange portion, a peripheral neck having a radius of curvature within the range of 0.5 to 1.2 mm, a substantially rectilinear portion of continued section without break in continuity integral with and connecting the neck with the central portion, a portion integral with and connecting the crimping flange portion and the neck, with the portion connecting the crimping flange portion with the neck forms an angle X with a line perpendicular to the plane surface of the neck at most 20* and forming with the rectilinear portion of angle Y within the range of 6* to 34*.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |