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US3698596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Necked-in container
Assignee: Crown Cork and Seal Co Inc
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Filing: 1970-01-20
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Granted: 1972-10-17
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Expires: 1990-01-20
Abstract
Abstract Cans having a tubular body necked-in at one or both ends. The tubular body is side seamed and the ends are seamed to the tubular body.
Inventors
- 👤 Vinson S Potts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:25
CPC Classifications
B; B65; B65D; B65D7/00; B65D7/02; B65D7/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
222 words
A metal can comprising: a substantially tubular can body including a substantially cylindrical central section and at least one necked-in terminal section, said necked-in terminal section having a tapering annular portion providing an abrupt and substantial reduction in diameter of said tubular can body, said tubular can body further including a side seam extending along said tubular body including said necked-in section, said side seam including a soldered interlocking portion extending along said cylindrical central section and at least one lap portion extending throughout said at least one necked-in terminal section and into said cylindrical central section, said interlocking portion of said seam providing an hermetic seal under pressures in excess of 100 psi; and a can end double seamed to each said at least one necked-in terminal section, said can end having a maximum outside diameter substantially less than the inside diameter of said cylindrical central section, said lap portion extending along the curved surface of said tapering annular portion so as to extend substantially radially and axially beyond said double seamed can end and thereby expose a substantial segment of said lap portion to the pressures generated within the container without reinforcement by said double seamed end, said exposed segment of said portion being soldered so as to also provide an hermetic seal under pressures in excess of 100 psi.
Claim 2
Dependent Claim
222 words
A metal can comprising: a substantially tubular can body including a substantially cylindrical central section and at least one necked-in terminal section, said necked-in terminal section having a tapering annular portion providing an abrupt and substantial reduction in diameter of said tubular can body, said tubular can body further including a side seam extending along said tubular body including said necked-in section, said side seam including a soldered interlocking portion extending along said cylindrical central section and at least one lap portion extending throughout said at least one necked-in terminal section and into said cylindrical central section, said interlocking portion of said seam providing an hermetic seal under pressures in excess of 100 psi; and a can end double seamed to each said at least one necked-in terminal section, said can end having a maximum outside diameter substantially less than the inside diameter of said cylindrical central section, said lap portion extending along the curved surface of said tapering annular portion so as to extend substantially radially and axially beyond said double seamed can end and thereby expose a substantial segment of said lap portion to the pressures generated within the container without reinforcement by said double seamed end, said exposed segment of said portion being soldered so as to also provide an hermetic seal under pressures in excess of 100 psi.
Claim 3
Dependent Claim
194 words
A metal can for containing highly pressurized contents comprising: a pair of can ends; and a substantially tubular can body having spaced terminal edges joined with said can ends by double seams and having a leakproof side seam extending between said terminal edges, said body comprising a cylindrical terminal section, at least one terminal cylindrical section having an outside diameter less than the inside diameter of said central cylindrical section, and an abruptly inwardly tapering annular section intermediate said central cylindrical section and said terminal cylindrical section, said tapering annular section extending radially outwardly beyond the adjacent can end, said side seam including a soldered interlocking portion extending along said central section and soldered lap portions extending from each of said terminal edges, at least one of said lap portions extending throughout said at least one terminal cylindrical section along the entire length of the curved surface of said tapering annular section and into said central cylindrical section so as to expose a substantial segment of said one lap portion without reinforcement by a double seamed end, said segment being soldered to provide a substantially leak-proof seal along the entire length of said seam.
Claim 4
Dependent Claim
194 words
A metal can for containing highly pressurized contents comprising: a pair of can ends; and a substantially tubular can body having spaced terminal edges joined with said can ends by double seams and having a leakproof side seam extending between said terminal edges, said body comprising a cylindrical terminal section, at least one terminal cylindrical section having an outside diameter less than the inside diameter of said central cylindrical section, and an abruptly inwardly tapering annular section intermediate said central cylindrical section and said terminal cylindrical section, said tapering annular section extending radially outwardly beyond the adjacent can end, said side seam including a soldered interlocking portion extending along said central section and soldered lap portions extending from each of said terminal edges, at least one of said lap portions extending throughout said at least one terminal cylindrical section along the entire length of the curved surface of said tapering annular section and into said central cylindrical section so as to expose a substantial segment of said one lap portion without reinforcement by a double seamed end, said segment being soldered to provide a substantially leak-proof seal along the entire length of said seam.
Claim 5
Dependent Claim
21 words
The metal can of claim 2 wherein said exposed segment of said at least one of said lap portions is welded.
Claim 6
Dependent Claim
25 words
The metal can of claim 3 wHerein said at least one of said lap portions is welded at a point on said annular tapering section.
Claim 7
Dependent Claim
43 words
The metal can of claim 4 wherein said at least one of said lap portions is welded at the junction of said central cylindrical section and said annular tapering section and the junction of said terminal cylindrical section and said annular tapering section.
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) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |