High pressure containers for cyclically varying pressures
Abstract
Abstract A HIGH PRESSURE CONTAINER, FOR EXAMPLE FOR HYDROSTATIC EXTRISON HAS A PLUNGER FOR GENERATING HIGH HYDROSTATIC PRESSURE IN THE CONTAINE AND ALSO HAS A MOVABLE WALL PORTION DEFINED BY A SURFACE OF A FLOATING MOVABLE MEMBER. AN OPPOSITE SURFACE OF THE FLATING MEMBER OF LARGER AREA FORMS A MOVABLE WALL SURFACE IN A LOWER PRESSURE CHAMBER. CONSEQUENTLY, THE PRESSURE IN THE LOWER PRESSURE CHAMBER IS ALWAYS LESS THAN BUT PROPORTIONAL TO THE PRESSURE IN THE HIGH PRESSURE CHAMBNER. THE LOWER PRESSURE THUS GENERATED IS APPLIED AROUND THE OUTER CYLINDRICAL WALL SURFACE OF THE HIGH PRESSURE CHAMBER. IN THIS WAY, TENSILE HOOP STRESSES IN THE CYLINDRICAL WALL CAN BE ELIMINATED THROUGHOUT A WORKING CYCLE WITHIN THE HIGH PRESSURE CHAMBER. THE LIFE OF THE HIGH PRESSURE CHAMBER IS INCREASED SINCE THE RISK OF FATIGUE FAILURE IS REDUCED.
Inventors
- 👤 John Malcolm Alexander
- 👤 Bela Lengyel
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |