Cryogenic pumping system
Abstract
Abstract A PUMPING SYSTEM IS DISCLOSED FOR USE IN ASSOCIATION WITH CRYOGENIC FLUID, TO ACCOMPLISH FLUID FLOW BY UTILIZATION OF THE NEGATIVE ENERGY STORED BY THE CRYOGENIC FLUID. A HEAT EXCHANGE MEANS RECEIVES THE CRYOGENIC FLUID TO GASIFY A QUANTITY THEREOF AND THEREBY DRIVE A TURBINE WHICH IS CONNECTED TO MOTIVATE A PUMP. ONE EMBODIMENT INCLUDES A BURNER TO SUPPLY ADDITIONAL HEAT TO THE HEAT EXCHANGER UPON COMBINATION OF SPENT GAS FROM A TURBINE. IN ANOTHER EMBODIMENT A SECOND HEAT EXCHANGER IS PROVIDED ACROSS THE FLUID INTERFACE OF A CRYOGENIC TANK SO AS TO PRESSURIZE THE TANK. VARIOUS CHECK AND OTHER VALVES ARE ALSO INCORPORATED IN THE EMBODIMENTS DISCLOSED FOR CONTROLLING THE FLOW OF THE FLUID.
Inventors
- 👤 Everett H Schwartzman
Bibliographic Details
Claims Analysis
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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) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |