US3228222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the explosion forming of hollow objects, including such container elements as cups, cans, can ends
Assignee: Continental Can Co Inc
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Filing: 1962-04-25
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Granted: 1966-01-11
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Expires: 1982-04-25
Abstract
No abstract record available.
Inventors
- 👤 Curtis E Maier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:57
CPC Classifications
B; B21; B21D; B21D26/00; B21D26/02; B21D26/06; B21D26/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A METHOD OF FORMING CONTAINERS AND LIKE SHAPED ARTICLES FROM A SHEET IN A SINGLE CONTINUOUS OPERATION UTILIZING A FORMING UNIT INCLUDING A COMBUSTION CHAMBER DIFINING MEMBER AND A MOLD COMPRISING THE STEPS OF SHEARING A BLANK FROM THE SHEET WITHIN THE COMBUSTION CHAMBER DEFINING MEMBER, CLAMPING THE BLANK AGAINST THE MOLD, AND EXPLOSIVE FORMING THE BLANK WITHIN THE MOLD.
Claim 2
Independent Claim
60 words
A METHOD OF FORMING CONTAINERS AND LIKE SHAPED ARTICLES FROM A SHEET IN A SINGLE CONTINUOUS OPERATION UTILIZING A FORMING UNIT INCLUDING A COMBUSTION CHAMBER DIFINING MEMBER AND A MOLD COMPRISING THE STEPS OF SHEARING A BLANK FROM THE SHEET WITHIN THE COMBUSTION CHAMBER DEFINING MEMBER, CLAMPING THE BLANK AGAINST THE MOLD, AND EXPLOSIVE FORMING THE BLANK WITHIN THE MOLD.
References Cited (Backward Citations)
US2732897A
Cited
US2331491A
Cited
US2843070A
Cited
GB742458A
Cited
US2935038A
Cited
US3044430A
Cited
FR1265540A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |