Electropneumatic and electrohydraulic re-forming of tubing and the like
Abstract
Abstract DISCLOSED HEREIN ARE APPARATUS AND METHOD FOR THE ELECTROPNEUMATIC AND ELECTROHYDRAULIC RE-FORMING AND THE LIKE OF MEMBERS SUCH AS, FOR EXAMPLES, CONTAINER BODIES AND THE LIKE. THE FORCE GENERATED FOR PERFORMING THE RE-FORMING IS CREATED THROUGH THE APPLICATION OF ELECTRICAL ENERGY TO A PAIR OF ELECTRODES POSITIONED WITHIN A CHAMBER TO PROVIDE AN ELECTRICAL DISCHARGE WITHIN SUCH CHAMBER. THE ELECTRICAL DISCHARGE CREATES A PLASMA BUBBLE BETWEEN THE ELECTRODES AND SUCH BUBBLE CONTINUES TO GROW AS CONTINUED POWER IS SUPPLIED TO THE ELECTRODES. ALSO DISCLOSED ARE APPARATUS AND METHOD FOR SEVERING AND FLANGING MEMBERS USING SIMILARLY DEVELOPED FORCE. THE FORCE SO CREATED DRIVES THE WALL OF THE MEMBER OR WORK- PIECE AGAINST AN ADJACENT DIE TO PERFORM THE DESIRED OPERATION OR OPERATIONS.
Inventors
- 👤 Donald J Roth
Bibliographic Details
Claims Analysis
Total Claims: 0References 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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |