US3987927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bead joint
Assignee: RHEINPFALZISCHE BLECHEMBALLAGENFABRIK G SCHONUNG AND CO KG
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Filing: 1974-06-24
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Granted: 1976-10-26
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Expires: 1994-06-24
Abstract
Abstract A bead joint between plastically deformable edges of a container side wallnd an end wall for the container wherein the edges are adjacent each other and are folded over several times to form a plurality of folds for the joint, a sealing compound being within the joint. The joint is generally elliptical, with the folds having different radii and the radium of transition between the edges and a first fold of the bead joint being relatively small and gradually increasing.
Inventors
- 👤 Georg Serr
- 👤 Franz Gobauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:50
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/26; B21D51/30; B21D51/32; B65; B65D; B65D7/00; B65D7/12; B65D7/34; B65D7/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
187 words
In a bead joint disposed outwardly along the rolled top edge portion of a container side wall and end wall, the side and end wall edges being conformingly adjacent each other and folded over several times to form a plurality of folds forming the joint, and a sealing means within the joint, the improvements of the folds having unequal bending radii to impart to the bead joint a generally elliptical or egg-shaped cross section, the major axis of the bead joint cross section being inclined towards the axis of the container, the bending radius of transition of the container and a first one of the bead joint folds being relatively small whereby the first bead joint fold encloses an angle of less than 90° with the side wall to provide a zone of added stiffness, the bending radius then gradually increasing to form an arcuate portion of the bead joint cross section and the bending radius then further varying to complete the bead joint with at least two further folds, and the folded-over side and end wall edges being in contact with each other within the joint.
Claim 2
Dependent Claim
187 words
In a bead joint disposed outwardly along the rolled top edge portion of a container side wall and end wall, the side and end wall edges being conformingly adjacent each other and folded over several times to form a plurality of folds forming the joint, and a sealing means within the joint, the improvements of the folds having unequal bending radii to impart to the bead joint a generally elliptical or egg-shaped cross section, the major axis of the bead joint cross section being inclined towards the axis of the container, the bending radius of transition of the container and a first one of the bead joint folds being relatively small whereby the first bead joint fold encloses an angle of less than 90° with the side wall to provide a zone of added stiffness, the bending radius then gradually increasing to form an arcuate portion of the bead joint cross section and the bending radius then further varying to complete the bead joint with at least two further folds, and the folded-over side and end wall edges being in contact with each other within the joint.
References Cited (Backward Citations)
US670720A
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US1662277A
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US1478782A
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US1590753A
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US3169678A
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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) | 1979-10-26 | 1980-04-26 | 1980-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-26 | 1984-04-26 | 1984-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-26 | 1988-04-26 | 1988-10-26 | $7700.00 | Window Closed / Lapsed |