US3222902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-hydraulic forming method and apparatus
Assignee: Primerica Inc
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Filing: 1961-12-28
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Granted: 1965-12-14
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Expires: 1981-12-28
Abstract
No abstract record available.
Inventors
- 👤 Brejcha Robert John
- 👤 Bazell Seymour
- 👤 Joseph L Radnik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:20
CPC Classifications
B; B21; B21D; B21D26/00; B21D26/02; B21D26/06; B21D26/12; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49805; Y10T29/49806
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A FORMING HEAD MECHANISM FOR ELECTRO-HYDRAULICALLY SHAPING A TUBULAR CONTAINER BODY IN A FORMING DIE COMPRISING A SUPPORT MOVABLE RELATIVE TO SAID DIE, A TUBULAR ELASTOMERIC MEMBER INSERTIBLE WITHIN SAID BODY AND MOUNTED ON SAID SUPPORT, AN ELECTRODE HAVING AN EXPOSED TIP MOUNTED WITHIN EACH END OF SAID ELASTOMERIC MEMBER AND DEFINING THEREIN A CONTAINER, AN ENERGY TRANSMITTING MEDIUM WITHIN SAID CONTAINER, SAID ELECTRODE TIPS BEING IMMERSED IN SAID MEDIUM AND BEING SPACED APART A PREDTERMINED DISTANCE, AND CONTACTS ON SAID ELECTRODES EXTERNALLY OF SAID ELASTOMERIC MEMBER AND CONNECTED TO AN ELECTRICAL POWER SOURCE WHICH SELECTIVELY DISCHARGES ELECTRICAL ENERGY ACROSS SAID ELECTRODES TIPS WHEREBY SHOCK WAVES ARE CREATED WITHIN SAID MEDIUM WHICH PROPAGATE OUTWARDLY FROM SAID ELECTRODES AND TRANSMIT ENERGY TO SAID ELASTOMERIC MEMBER FOR SHAPING SAID CONTAINER BODY TO THE CONTOUR OF SAID DIE.
Claim 2
Dependent Claim
135 words
A FORMING HEAD MECHANISM FOR ELECTRO-HYDRAULICALLY SHAPING A TUBULAR CONTAINER BODY IN A FORMING DIE COMPRISING A SUPPORT MOVABLE RELATIVE TO SAID DIE, A TUBULAR ELASTOMERIC MEMBER INSERTIBLE WITHIN SAID BODY AND MOUNTED ON SAID SUPPORT, AN ELECTRODE HAVING AN EXPOSED TIP MOUNTED WITHIN EACH END OF SAID ELASTOMERIC MEMBER AND DEFINING THEREIN A CONTAINER, AN ENERGY TRANSMITTING MEDIUM WITHIN SAID CONTAINER, SAID ELECTRODE TIPS BEING IMMERSED IN SAID MEDIUM AND BEING SPACED APART A PREDTERMINED DISTANCE, AND CONTACTS ON SAID ELECTRODES EXTERNALLY OF SAID ELASTOMERIC MEMBER AND CONNECTED TO AN ELECTRICAL POWER SOURCE WHICH SELECTIVELY DISCHARGES ELECTRICAL ENERGY ACROSS SAID ELECTRODES TIPS WHEREBY SHOCK WAVES ARE CREATED WITHIN SAID MEDIUM WHICH PROPAGATE OUTWARDLY FROM SAID ELECTRODES AND TRANSMIT ENERGY TO SAID ELASTOMERIC MEMBER FOR SHAPING SAID CONTAINER BODY TO THE CONTOUR OF SAID DIE.
References Cited (Backward Citations)
US2559227A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |